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Ransomware Threats in the Americas H1 2026: Dissecting the Regional Attack Patterns and Dominant Actors

Ransomware Threats, Americas, America,

The Americas carried the heaviest ransomware burden of any region on the planet in the first half of 2026. According to Cyble Research and Intelligence Labs (CRIL), North and South America combined experienced 2,188 documented ransomware attacks between January and June 2026.

That single figure — 2,188 attacks — represents more than 57% of the 3,836 ransomware incidents CRIL tracked worldwide, making the Americas the undisputed center of gravity for global ransomware operations.

But the Americas is not a single threat theatre — it is two. North America alone absorbed 1,981 attacks, driven by a mature, multi-group Ransomware-as-a-Service (RaaS) economy competing for market share. South America, by contrast, recorded 207 attacks concentrated around a much smaller set of operators, with one group — The Gentlemen — claiming nearly a quarter of all regional incidents outright. Understanding the Americas means understanding both halves of that story: a saturated northern market and a consolidating southern one.

North America vs. South America: Two Distinct Ransomware Landscapes

Security leaders operating across the hemisphere cannot apply a single threat model to both sub-regions. The data shows meaningfully different attacker behavior, concentration, and monetization strategy north and south of the equator.

Metric North America South America
Ransomware Attacks 1,981 207
Dominant Ransomware Actor Qilin (370 attacks) The Gentlemen (46 attacks)
Top Targeted Sector Construction IT & ITES
Top Targeted Nation United States (1,721) Brazil (71)
Distinct Ransomware Groups Active 50+ 30+
% of Attacks from Top 3 Groups ~40% (Qilin, Akira, INC Ransom) ~57.5% (The Gentlemen, Qilin, LockBit)

Why the split matters: North America's threat landscape is a genuine marketplace — dozens of RaaS operators compete for affiliate loyalty, and no single group commands more than a fifth of total volume. South America's landscape is more consolidated, with three groups controlling well over half of all attacks.

For defenders, that means North American organizations need broad-spectrum threat intelligence covering a long tail of active groups, while South American organizations can build highly specific defenses against a short list of named adversaries.

The Five Dominant Ransomware Groups Targeting Americas

Across both sub-regions combined, five ransomware operators account for the overwhelming share of documented activity: Qilin, Akira, INC Ransom, Dragonforce, and The Gentlemen. Together, these five groups are linked to roughly 1,148 of the Americas' 2,188 attacks — approximately 52.5% of all regional ransomware activity.

ransomware threats, ransomware threats in Americas, ransomware threats in Americas 2026, Qilin
Fig. Top five ransomware groups in Americas for H1 2026 (Source: CRIL)

1. Qilin: The Biggest Ransomware Threat in the Americas

Attack Volume: 410 documented incidents across the Americas (370 in North America, 40 in South America) — 18.7% of the regional total.

Qilin is the single most prolific ransomware actor operating in the hemisphere, and its dominance is not evenly spread — it is concentrated hardest in the United States.

Geographic Concentration:

  • United States: 323 attacks (the single largest country-level concentration of any group, anywhere)
  • Canada: 33 attacks
  • Argentina: 13 attacks
  • Broader South America: 40 attacks

Worldwide Sectoral Targeting: Qilin's targeting logic is deliberate rather than opportunistic:

  • Construction: 108 incidents (primary focus)
  • Professional Services: 90 incidents (legal, accounting, consulting firms)
  • Manufacturing: 67 incidents
  • Healthcare: 53 incidents
  • IT & ITES: 43 incidents

Operational Characteristics:

Qilin's affiliate model is built for scale. Initial access brokers handle reconnaissance and compromise, mid-tier operators manage lateral movement, and dedicated crews execute encryption and exfiltration. This compartmentalization lets Qilin run dozens of concurrent operations across the United States without any single point of failure. The group's near-total dominance of the American ransomware market (323 of 1,721 US attacks) suggests either an unusually large affiliate roster or a payout structure attractive enough to pull operators away from competing platforms.

Why Qilin Dominates:

  • Affiliate Loyalty: Competitive payout splits keep operators recruiting and retaining talent
  • Rapid Exploit Weaponization: Fast turnaround from vulnerability disclosure to active exploitation
  • Sector Fluency: Deep understanding of which industries face the highest downtime cost
  • Established Data Brokerage Ties: Exfiltrated data reliably reaches monetization channels

Americas Security Implications: Any organization in construction, professional services, manufacturing, or healthcare operating in the US or Canada should treat Qilin as a primary named threat, not a generic ransomware risk.

2. Akira: North America's Persistent Operator

Attack Volume: 268 documented incidents, almost entirely concentrated in North America — 12.2% of the regional total

Akira is the second most active group in the Americas, and unlike Qilin, its footprint is almost exclusively North American. CRIL's data shows Akira's South American presence is negligible to date.

Geographic Concentration:

  • United States: 247 attacks (92% of Akira's total Americas volume)
  • Canada: Remaining North American activity
  • South America: Minimal to no confirmed activity

Worldwide Sectoral Targeting:

  • Construction: 57 incidents
  • Manufacturing: 54 incidents
  • Professional Services: 47 incidents
  • Consumer Goods: 19 incidents
  • IT & ITES: 16 incidents

Operational Characteristics:

Akira has built a reliable playbook around compromising small-to-medium-sized businesses through unpatched public-facing network devices, then pivoting into construction and manufacturing environments where downtime tolerance is lowest. The group's consistency — rather than explosive growth — is its defining trait; it has neither the explosive scale of Qilin nor the geographic diversification of The Gentlemen, but it reliably executes against the same target profile month after month.

Americas Security Implications: North American SMBs in construction, manufacturing, and professional services should assume Akira is actively scanning for exposed remote access infrastructure. Its South American absence should not be mistaken for permanence — RaaS groups expand geographically once North American markets saturate.

3. INC Ransom: The Law-Firm Specialist

Attack Volume: 171 documented incidents (164 in North America, 7 in South America) — 7.8% of the regional total

INC Ransom distinguishes itself through sector specialization rather than volume. The group shows a clear, repeated preference for Professional Services organizations — particularly law firms — leveraging the sensitive, high-stakes nature of legal client data.

Geographic Concentration:

  • United States: 154 attacks
  • Canada: 6 attacks
  • Brazil: 4 attacks

Worldwide Sectoral Targeting:

  • Professional Services: 58 incidents (primary focus, with a documented preference for law firms)
  • Construction: 27 incidents
  • Manufacturing: 26 incidents
  • Healthcare: 21 incidents
  • Organisation/Non-profit: 12 incidents

Operational Characteristics:

INC Ransom's rapid operational pace and consistent targeting of law firms, healthcare providers, and transportation/energy operators reflects a strategy built entirely around double-extortion leverage. The sensitivity of the data matters more than the size of the victim. A regional law firm holding privileged client communications is, to INC Ransom, a more valuable target than a much larger manufacturer with less sensitive data.

Americas Security Implications: Law firms, accounting practices, and consulting shops across the US, Canada, and Brazil should assume INC Ransom is actively targeting client confidentiality as leverage — not just encrypting file servers for disruption.

4. Dragonforce: The Cross-Border Supply-Chain Operator

Attack Volume: 153 documented incidents (148 in North America, 5 in South America) — 7.0% of the regional total

Dragonforce maintains an aggressive operational tempo focused heavily on the United States, with a strategy that suggests supply-chain-aware targeting rather than random opportunism.

Geographic Concentration:

  • United States: 135 attacks
  • Canada: 11 attacks
  • South America: 5 attacks

Worldwide Sectoral Targeting:

  • Construction: 48 incidents
  • Manufacturing: 31 incidents
  • Professional Services: 28 incidents
  • IT & ITES: 18 incidents
  • BFSI: 17 incidents

Operational Characteristics:

Dragonforce's manufacturing and construction focus mirrors Qilin's and Akira's playbooks, but its concentration in the US combined with limited-but-present South American activity hints at interest in transnational manufacturing supply chains. North American organizations with manufacturing partners or subsidiaries in Latin America should treat this as a lateral-access risk, not just a direct-targeting one.

Americas Security Implications: Manufacturers and construction firms with cross-border operations — a common structure across USMCA supply chains — should extend Dragonforce-specific monitoring to subsidiaries and vendors, not just headquarters networks.

5. The Gentlemen: South America's Dominant Threat

Attack Volume: 146 documented incidents (100 in North America, 46 in South America) — 6.7% of the regional total, but the single most active ransomware group in South America specifically.

While The Gentlemen rank fifth across the combined Americas, they are the #1 threat actor in South America on their own — responsible for roughly 22% of every ransomware attack recorded in that sub-region.

Geographic Concentration:

  • United States: 77 attacks
  • North America: 100 attacks
  • Brazil: 15 attacks
  • South America: 46 attacks (largest single-group share in the sub-region)

Worldwide Sectoral Targeting:

  • Manufacturing: 56 incidents
  • Construction: 45 incidents
  • Healthcare: 37 incidents
  • IT & ITES: 36 incidents
  • Consumer Goods: 34 incidents

Operational Characteristics:

The Gentlemen are a relatively new operator that has achieved outsized scale in a short window, and their South American concentration is the most important regional signal in this dataset. Unlike Qilin or Akira — which built North American dominance first and are only beginning to diversify — The Gentlemen appear to have prioritized South America as a primary theatre from early in their operational life, an unusual strategic choice that may reflect lower defensive maturity, less aggressive law enforcement cooperation, or simply less competitive pressure from other RaaS operators in the sub-region.

Americas Security Implications: South American organizations — especially in healthcare, manufacturing, and IT services — should treat The Gentlemen as their single highest-priority named adversary. North American organizations should not discount them either; 100 US-focused attacks is a substantial footprint for a group still building its brand.

Other Notable Threats: Play, LockBit, and CL0P

Three additional groups warrant inclusion in any Americas threat model:

  • Play (144 attacks, North America only): Continues its "Big Game Hunting" approach layered with high-volume SMB attacks via unpatched public-facing network devices, concentrated almost entirely on US and Canadian construction, professional services, and manufacturing targets.
  • LockBit (80 attacks combined — 47 in North America, 33 in South America): Despite sustained international law enforcement pressure and repeated takedown attempts, LockBit remains operationally resilient across both sub-regions, notably compromising Chile's Clínica Dávila in South America.
  • CL0P (93 attacks combined — 91 in North America, 2 in South America): Operated differently from its peers, executing a large-scale campaign concentrated in January and February 2026 that exploited a single zero-day vulnerability across hundreds of organizations at once — reminiscent of the group's historical MOVEit campaign.

Also read: The Most Active Threat Actors of H1 2026

The Five Most Targeted Nations in the Americas

ransomware threats, ransomware threats in Americas, ransomware threats in Americas 2026, Qilin
Fig. Most targeted countries in Americas for H1 2026 (Source: Cyble)

United States: The Global Ransomware Epicenter

Attack Volume: 1,721 ransomware attacks — 78.7% of all Americas ransomware activity, and roughly 45% of every ransomware attack recorded worldwide.

No other country on Earth comes close to the volume of ransomware activity absorbed by the United States in H1 2026. The country functions as the default target for nearly every major RaaS operator active today.

Threat Actor Concentration:

  • Qilin: 323 attacks
  • Akira: 247 attacks
  • INC Ransom: 154 attacks
  • Dragonforce: 135 attacks
  • Play: 134 attacks

Sectoral Breakdown: Manufacturing, Professional Services, Construction, and Healthcare bear the brunt, consistent with the broader North American pattern of operationally sensitive, low-downtime-tolerance industries.

Why the United States Faces Maximum Pressure

The scale of the US economy, its dense concentration of mid-market manufacturers, law firms, and healthcare providers, and its comparatively high ransom-payment history combine to make it the most economically rational target for every major ransomware operator. US organizations also frequently anchor cross-border supply chains stretching into Canada, Mexico, and South America — meaning a US compromise can cascade into lateral access against hemispheric partners.

Defensive Priority: US organizations across construction, manufacturing, professional services, and healthcare should assume Qilin, Akira, INC Ransom, Dragonforce, Play, and The Gentlemen are all actively scanning for exploitable entry points into their networks simultaneously — not sequentially.

Canada: The Cross-Border Extension

Attack Volume: 179 ransomware attacks — 8.2% of the regional total.

Canada's threat profile closely tracks the United States, reflecting deep economic integration and shared supply chains rather than a distinct targeting logic of its own.

Sectoral Breakdown: Manufacturing, professional services, and construction dominate, mirroring the US pattern almost directly.

Why Canada Faces Sustained Pressure

Canadian organizations are frequently subsidiaries, suppliers, or joint-venture partners of US enterprises, which means the same RaaS groups saturating the US market extend naturally northward. Cross-border manufacturing in particular creates lateral access opportunities that Dragonforce and Akira appear well-positioned to exploit.

Defensive Priority: Canadian organizations should not assume distance from US headquarters provides insulation — the same threat actors, exploiting the same vulnerability classes, are already active on both sides of the border.

Brazil: The Financial Malware and Ransomware Convergence Point

Attack Volume: 71 ransomware attacks — 3.2% of the regional total, but the largest single concentration in South America.

Brazil represents South America's most complex threat environment, combining traditional ransomware pressure with a maturing, sophisticated financial malware ecosystem.

Threat Actor Concentration: The Gentlemen (15 attacks), LockBit, and a fragmented tail of smaller operators.

Sectoral Breakdown: Government & Law Enforcement, BFSI, and Healthcare are the most consistently targeted sectors.

Why Brazil Faces a Dual Threat

Beyond ransomware, Brazil emerged in H1 2026 as a focal point for new Android banking trojan families — TCLBANKER and BTMOB RAT — which use self-propagation, evasion techniques, and Malware-as-a-Service (MaaS) distribution models to target banking and cryptocurrency users directly. Brazil also suffered an alleged 250-million-record breach of Serasa, one of the country's largest credit bureaus, alongside an access sale allegedly targeting the Central Bank of Brazil — a listing that, if genuine, represents one of the most significant initial-access offerings tracked anywhere in the report.

Defensive Priority: Brazilian financial institutions should treat mobile banking malware and ransomware as converging risks rather than separate problems — the same underground economy is monetizing both. Government and BFSI entities should assume access-broker listings referencing critical national infrastructure require immediate incident-response-level validation, not routine monitoring.

Mexico: The Emerging Nearshoring Risk

Attack Volume: 39 ransomware attacks — 1.8% of the regional total.

Mexico's attack volume is meaningfully lower than the US, Canada, or Brazil, but its position within North American manufacturing supply chains — accelerated by ongoing nearshoring trends — makes it a nation to watch closely rather than dismiss.

Why Mexico Warrants Increased Attention

As global manufacturers continue relocating production closer to the US market, Mexican facilities increasingly sit inside the same supply chains that Dragonforce, Akira, and Qilin already target aggressively north of the border. Lower current attack volume may reflect earlier-stage targeting rather than lower risk — a pattern security teams should not mistake for durable safety.

Defensive Priority: Manufacturers with Mexican operations should extend the same OT/IT segmentation and vulnerability management discipline applied to US and Canadian facilities to their Mexican sites, rather than treating them as lower priority.

Colombia: Where Hacktivism Meets Cybercrime

Attack Volume: 33 ransomware attacks — 1.5% of the regional total.

Colombia's ransomware volume is modest, but the country stands out for the density of ideologically motivated activity layered on top of financially driven attacks.

Why Colombia Faces a Blended Threat

Groups such as Anonymous Colombia (#OpColombia) ran active campaigns throughout H1 2026 blending website defacement, DDoS attacks, and data leak activity — consistent with the broader South American pattern in which hacktivist-branded channels frequently overlap with financially motivated cybercrime infrastructure.

Defensive Priority: Colombian government and law enforcement entities — the most frequently targeted sector across South America overall — should treat hacktivist claims as credible threat intelligence signals rather than dismissing them as purely ideological noise.

Where Americas Organizations Face Maximum Risk: A Sectoral Analysis

Professional Services: One of the Top Targets

Attack Volume: The second most heavily impacted sector in North America.

Professional services firms — law, accounting, and consulting practices — are one of the top jobs on North America's ransomware target list, driven overwhelmingly by INC Ransom and AiLock's aggressive targeting of client-confidential data.

Why Professional Services Are Targeted

  1. Privileged Data Concentration: Legal privilege and client confidentiality create existential regulatory and reputational exposure that threat actors exploit for maximum ransom leverage.
  2. Regulatory Pressure: Breach notification requirements incentivize rapid ransom payment to avoid compounding disclosure penalties.
  3. Trust-Based Business Model: A single confirmed breach can permanently damage client relationships built entirely on confidentiality.
  4. Documented Actor Preference: INC Ransom has shown a specific, repeated preference for law firms — this is not incidental targeting.

Notable Incident Pattern: AiLock's activity stood out for a coordinated wave of victim disclosures on a single day — March 3, 2026 — a pattern consistent with mass-exploitation of a shared vulnerability rather than individually researched targeting.

Defensive Recommendations:

  • Segregate client data on separate network segments with distinct, audited access controls
  • Deploy data loss prevention (DLP) with aggressive egress monitoring for client-data exfiltration
  • Maintain comprehensive access logs for all sensitive client-data touchpoints
  • Evaluate ransomware-specific cyber insurance addressing confidentiality exposure

Construction and Manufacturing: The Downtime Economy

Attack Volume: Construction and Manufacturing rank first and third in North America; combined, they represent the largest share of Qilin, Akira, Dragonforce, and The Gentlemen's worldwide targeting.

Constructions and manufacturing share a common vulnerability across the Americas: both operate on tight, contractually enforced timelines where downtime translates directly into cascading financial penalties.

Why Construction and Manufacturing Are Targeted

  1. Time-Sensitive Financial Exposure: Missed construction deadlines trigger contractual penalties; halted production lines trigger lost revenue and breached delivery commitments.
  2. OT/IT Convergence: Modern factories and job sites increasingly integrate operational technology with corporate IT, creating exploitation bridges unavailable in pure-IT industries.
  3. Supply-Chain Complexity: Both industries depend on dense webs of subcontractors and suppliers — compromising one upstream partner can provide lateral access into prime contractors.
  4. Cross-Border Exposure: US-Canada-Mexico manufacturing integration (and increasingly, US-Brazil trade relationships) means a single compromise can propagate across national borders.

Defensive Recommendations:

  • Implement airgapped network segmentation between OT and corporate IT environments
  • Prioritize vulnerability patching for network appliances and identity systems over blanket patch cycles
  • Maintain fully offline, immutable backups of critical project and production data
  • Extend third-party risk assessments to subcontractors, suppliers, and cross-border subsidiaries

Healthcare: South America's Critical Infrastructure Threat

Attack Volume: One of the top four most heavily impacted sectors in South America.

Healthcare organizations across the Americas — but particularly in South America — face a threat dynamic distinct from financial pressure alone: ransomware attacks against hospitals directly endanger patient safety.

Why Healthcare Is Targeted

  1. Patient Safety Leverage: Downtime in diagnostic systems, pharmaceutical dispensing, and patient records directly threatens continuity of care, creating existential pressure to pay quickly.
  2. Documented Regional Incidents: The Gentlemen's claimed attack on Primero Medicina Privada and LockBit's compromise of Chile's Clínica Dávila both illustrate ransomware groups' willingness to target hospital networks directly.
  3. Data Value: Patient medical records and clinical data command premium prices on dark web marketplaces.
  4. System Complexity: Healthcare IT environments blend legacy diagnostic equipment, electronic health records, and connected medical devices — each with distinct security postures.

Defensive Recommendations:

  • Implement complete network isolation between clinical systems and corporate IT
  • Deploy redundant diagnostic and pharmaceutical systems capable of manual fallback operation
  • Encrypt all patient medical records end-to-end
  • Build healthcare-specific incident response plans addressing patient notification and continuity of care

Agriculture & Livestock: The Americas' Emerging Supply-Chain Target

Attack Volume: 33% of all North American initial access listings — the second-most targeted sector in the region's access brokerage market.

A distinctive Americas finding: initial access brokers targeting the region show unusually strong interest in Agriculture & Livestock, second only to Technology.

Why Agriculture & Livestock Is an Emerging Target

North America's food supply chain increasingly depends on connected logistics, cold-chain monitoring, and precision agriculture technology — creating an attack surface that did not meaningfully exist a decade ago. Access brokers appear to be positioning themselves ahead of ransomware operators, selling footholds into agricultural operations before ransomware crews weaponize them. This mirrors a pattern seen elsewhere globally but is particularly pronounced in North America's access brokerage data.

Defensive Recommendations:

  • Treat agricultural technology platforms (precision ag, cold-chain IoT) with the same security rigor as manufacturing OT
  • Monitor initial access broker markets specifically for agriculture and food-sector listings
  • Build incident response plans accounting for food-supply-chain continuity, not just data confidentiality

Geopolitical and Ideological Dimensions: Hacktivism Across the Hemisphere

SOLDADOS DIGITALES – UNIÓN AMERICANA: A Hemispheric Hacktivist Collective

Unlike most hacktivist channels tracked in this report, SOLDADOS DIGITALES – UNIÓN AMERICANA operates across both North and South America, making it one of the few genuinely hemispheric threat actors identified in H1 2026 — a significant finding given how regionally siloed most hacktivist activity tends to be.

Combined Hacktivism Metrics (North + South America):

  • ~140 confirmed data leak and dump posts across both sub-regions
  • At least 932 unique domains impacted (360 in North America, 572 in South America)
  • Primary targets: Government & LEA, Technology, BFSI, Telecommunication, Education

Notable Collectives by Sub-Region:

  • North America: SOLDADOS DIGITALES – UNIÓN AMERICANA, Anonymous #FreeTurtleIsland, KERALA HACKERS, LYSTIC TEAM #ID
  • South America: SOLDADOS DIGITALES – UNIÓN AMERICANA, Anonymous Colombia (#OpColombia) Y.A.N, BLAZER TEAM ATTACK

The Convergence Problem: As with hacktivist activity documented elsewhere in CRIL's global dataset, several Americas-based channels marketed as ideological collectives function as hybrid operations — logging DDoS attacks and defacement claims alongside stolen-data brokerage and DDoS-for-hire services. Security teams should treat these channels as credible threat intelligence sources rather than dismissing their claims as purely political theater.

Regional Threat Actor Summary: Who Targets Your Americas Organization

If You're in Professional Services:

  • Primary Threat: INC Ransom, Qilin
  • Secondary Threat: AiLock, The Gentlemen
  • Vulnerability: Client data exfiltration, regulatory breach-notification pressure
  • Defensive Focus: DLP, client data segregation, ransomware-specific cyber insurance, cyber threat intelligence

If You're in Manufacturing or Construction:

  • Primary Threat: Qilin, Akira, Dragonforce
  • Secondary Threat: The Gentlemen, Play
  • Vulnerability: OT/IT convergence, cross-border supply-chain exposure, contractual downtime penalties
  • Defensive Focus: OT segmentation, immutable backups, cross-border third-party risk management

If You're in Healthcare:

  • Primary Threat: The Gentlemen (South America), Qilin (North America)
  • Secondary Threat: LockBit
  • Vulnerability: Patient-safety leverage, legacy medical device integration
  • Defensive Focus: Clinical system isolation, redundant critical systems, patient-notification-ready incident response

If You're in BFSI:

  • Primary Threat: Data exfiltration actors, mobile banking malware (Brazil)
  • Secondary Threat: Qilin, The Gentlemen
  • Vulnerability: Financial data value, mobile malware convergence, regulatory exposure
  • Defensive Focus: DLP with aggressive egress controls, mobile threat monitoring, data encryption

If You're in Agriculture & Livestock:

  • Primary Threat: Initial access brokers
  • Secondary Threat: Downstream ransomware operators exploiting sold access
  • Vulnerability: Precision agriculture and cold-chain IoT exposure
  • Defensive Focus: OT-equivalent segmentation for agricultural technology, access-broker monitoring

If You're in Government & Law Enforcement (South America specifically):

  • Primary Threat: RALord/Nova, CoinbaseCartel, hacktivist-branded channels
  • Secondary Threat: LockBit, The Gentlemen
  • Vulnerability: Public-sector data value, hybrid ideological/financial targeting
  • Defensive Focus: Treat hacktivist claims as credible intelligence, harden citizen-data repositories

Strategic Defense Recommendations for Americas Organizations

Based on CRIL's H1 2026 regional data, Americas security leaders should prioritize defensive investment in the following sequence.

Phase 1: Critical Infrastructure Protection (30 days)

  • Inventory Network Appliances: Document every internet-facing firewall, VPN, and security gateway
  • Patch Critical CVEs: Prioritize Ivanti, Fortinet, Cisco, SolarWinds, and Palo Alto Networks appliances — the vendors repeatedly appearing in both the CISA KEV catalog and active exploitation campaigns
  • Harden Remote Access: Enforce phishing-resistant MFA on all administrative and remote access paths
  • Deploy Behavioral Monitoring: Watch for anomalous activity on network appliances specifically

Phase 2: Data Protection (60 days)

  • Data Inventory: Catalog sensitive holdings — client data, financial records, patient records, intellectual property
  • DLP Implementation: Deploy data loss prevention with aggressive egress monitoring
  • Encryption Standards: Enforce encryption in transit and at rest across all sensitive data stores
  • Access Auditing: Maintain comprehensive logs for every access event touching sensitive data

Phase 3: Operational Resilience (90 days)

  • Immutable Backups: Establish offline, immutable backup infrastructure isolated from production networks
  • Sector-Specific Incident Response: Build playbooks addressing construction project continuity, manufacturing downtime, and healthcare patient-safety scenarios specifically
  • Cross-Border Continuity Planning: For organizations with US-Canada-Mexico or US-Brazil operations, extend continuity plans across all connected facilities
  • Recovery Testing: Conduct quarterly backup restoration drills to verify actual recovery capability

Phase 4: Threat Hunting and Detection (Ongoing)

  • Named-Actor Threat Intelligence: Subscribe to intelligence feeds tracking Qilin, Akira, INC Ransom, Dragonforce, and The Gentlemen specifically
  • Access-Broker Monitoring: Track listings for organizational exposure
  • Supply-Chain Monitoring: Continuously assess vendor and subsidiary security posture across borders
  • Mobile Malware Awareness (Brazil-specific): Financial institutions should monitor for TCLBANKER- and BTMOB RAT-style Android banking trojan activity targeting customers

Conclusion: The Americas Ransomware Reality

The Americas is not just the largest ransomware theatre in the world by volume — it is two distinct threat environments operating under a single regional label. North America hosts a saturated, competitive RaaS marketplace where no single group dominates outright. South America is consolidating around a smaller set of operators, led decisively by The Gentlemen.

Key Takeaways:

  1. The Americas carries the global center of gravity: 2,188 of the world's 3,836 documented ransomware attacks (57%) struck North or South America in H1 2026.
  2. Five groups anchor the threat: Qilin (410), Akira (268), INC Ransom (171), Dragonforce (153), and The Gentlemen (146) collectively account for over half of all Americas ransomware activity — but their dominance splits sharply by sub-region.
  3. North America and South America require different playbooks: North America's threat model demands broad coverage against a long tail of competing operators; South America's demands deep, specific defense against The Gentlemen, Qilin, and LockBit.
  4. The United States remains the world's single largest target: 1,721 attacks — nearly 45% of global ransomware volume — makes the US the default target for virtually every major RaaS operator active today.
  5. Brazil's threat is compounding, not singular: ransomware, mass data breach, and mobile banking malware are converging in the same underground economy targeting the same financial institutions.
  6. Sector risk follows economic logic, not chance: Professional Services, Manufacturing, Construction, Healthcare, and — distinctively for the Americas — Agriculture & Livestock face targeting because threat actors have identified specific, exploitable economic pressure points in each.
  7. Access brokers are a leading indicator: a small number of sellers control the region's initial access market and routinely precede ransomware deployment by weeks.

For security leaders across North and South America, the strategic imperative is the same even where the tactical details diverge: know which named actors are active in your specific country and sector, prioritize risk-based patching over blanket cycles, treat data exfiltration as inevitable rather than optional, and build recovery infrastructure that assumes an attack will happen — not one that hopes it won't. The data confirms the Americas will remain the world's most heavily targeted ransomware region through the remainder of 2026. The only open question is how prepared each organization chooses to be.


Frequently Asked Questions (FAQs)

How many ransomware attacks hit the Americas in H1 2026?

2,188 documented ransomware attacks were observed across North and South America in H1 2026, according to Cyble Research and Intelligence Labs (CRIL) findings.

Which ransomware group is most active in the Americas in H1 2026?

Qilin is the most active group across the combined Americas, with 410 documented attacks (370 in North America, 40 in South America). Within South America specifically, however, The Gentlemen — not Qilin — is the dominant actor.

How many ransomware attacks hit North America in H1 2026?

CRIL recorded 1,981 ransomware attacks in North America during H1 2026, representing roughly 52% of all ransomware activity tracked worldwide.

How many ransomware attacks targeted the US in H1 2026? Is it the highest?

Yes. CRIL observed 1,721 ransomware attacks targeted at the US — which is 78.7% of the American continent (North and South, both), and nearly 45% of every ransomware attack recorded worldwide.

Which sector was the most targeted in South America?

IT & ITES remained the most targeted sector in South America for H1 2026.

Ransomware actors targeted which country the most in South America?

Brazil. With 71 attacks, it was the prime target of ransomware actors in H1 2026.

Is Brazil a significant ransomware target?

Yes. Brazil recorded 71 ransomware attacks — the highest total in South America — and additionally faced an alleged 250 million record breach at credit bureau Serasa, an access sale allegedly targeting the Central Bank of Brazil, and new Android banking trojan families (TCLBANKER, BTMOB RAT) targeting financial and cryptocurrency users.

What is the most targeted industry in the Americas?

Construction tops North America's target list, while IT & ITES, Healthcare, and Professional Services top South America's. Across the whole Americas, Construction and Manufacturing remain consistently high-risk due to their low tolerance for operational downtime.

The post Ransomware Threats in the Americas H1 2026: Dissecting the Regional Attack Patterns and Dominant Actors appeared first on Cyble.

Storm-1175 Replaces Medusa With New StormEncryptor Ransomware

Microsoft says China-linked Storm-1175 is using a new ransomware called StormEncryptor, replacing Medusa in its latest attacks.

Microsoft says China-linked, financially motivated threat actor Storm-1175 has begun using a new ransomware strain called StormEncryptor. The group previously relied on Medusa ransomware. StormEncryptor is written in C++ and encrypts files and adds the .encrypted extension, then leaves a !!!README_FIRST!!!.txt ransom note in each scanned directory. The change suggests an evolution in the group’s ransomware operations.

“While Microsoft has not confirmed the vulnerability targeted by Storm-1175 in this campaign, the threat actor is likely exploiting the CVE-2026-18577 authentication bypass vulnerability in N-able, which was disclosed on August 2, 2026 and added to the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) catalog on August 3, 2026.” wrote Microsoft on X.

On August 2, 2026, the financially motivated cybercriminal actor tracked by Microsoft Threat Intelligence as Storm-1175 began deploying a new ransomware strain called StormEncryptor.

Storm-1175’s deployment of StormEncryptor marks the threat actor’s first activity observed by… pic.twitter.com/wNbchat8ZU

— Microsoft Threat Intelligence (@MsftSecIntel) August 7, 2026

Storm-1175 is known for fast ransomware campaigns that exploit newly disclosed vulnerabilities before organizations can patch them. In recent attacks, the group used tools such as AnyDesk and SimpleHelp for remote access, Advanced IP Scanner to map networks, and Mimikatz to dump LSASS credentials.

Microsoft says the attackers can move from initial access to data theft and ransomware deployment within days, highlighting the need for rapid patching and monitoring.

China-based actor Storm-1175 carries out fast, financially driven ransomware attacks by exploiting newly disclosed vulnerabilities before organizations patch them. The group targets exposed systems and quickly moves from initial access to data theft and ransomware deployment, sometimes within 24 hours. The financially motivated group mainly targets sectors such as healthcare, education, finance, and services across the US, UK, and Australia. The attackers often chain exploits, create new accounts for persistence, move laterally using remote tools, steal credentials, and weaken security defenses. Their speed and focus on unpatched systems make them highly effective.

Microsoft researchers report that the group quickly exploits newly disclosed flaws in web-facing systems to gain access. Since 2023, the group has targeted many platforms, including Microsoft Exchange, Ivanti, ConnectWise, JetBrains, and others. It often weaponizes vulnerabilities within days, or even one day, before organizations apply patches.

“Storm-1175 rapidly weaponizes recently disclosed vulnerabilities to obtain initial access.” reads the report published by Microsoft. “Since 2023, Microsoft Threat Intelligence has observed exploitation of over 16 vulnerabilities, including:

The attackers also chain multiple exploits to achieve deeper access, such as remote code execution, and have targeted both Windows and Linux systems. In some cases, the threat actor used zero-days even before public disclosure, showing advanced capabilities. By focusing on unpatched systems and acting fast, Storm-1175 maximizes impact and maintains a strong advantage over defenders.

Storm-1175 chains multiple exploits to gain deeper access, as seen in attacks on Microsoft Exchange where it moved from initial access to remote code execution. The group also targets Linux systems and has used zero-day flaws before public disclosure, showing advanced skills.

After gaining access, it installs web shells or remote tools, creates admin accounts, and moves laterally using tools like PowerShell, PsExec, RDP, and Cloudflare tunnels. It also abuses legitimate RMM tools and software like PDQ Deployer and Impacket to spread across networks. The attackers can deploy ransomware in as little as one day, highlighting their speed and efficiency.

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Pierluigi Paganini

(SecurityAffairs – hacking, China)

Cisco Warns of Seven ClamAV Flaws, Two With Public PoCs

Cisco warns that seven ClamAV flaws affect Secure Endpoint Connector products, with two having public PoCs that could enable remote DoS attacks.

Cisco warned that seven ClamAV vulnerabilities affect its Secure Endpoint Connector on Windows, macOS and Linux. ClamAV is an open-source antivirus engine widely used to scan files and emails for malware.

The company states that two flaws have public PoCs and could let unauthenticated attackers cause DoS conditions.

“Multiple vulnerabilities in ClamAV could allow a remote attacker to cause a denial of service (DoS) condition, interrupting scanning operations.” reads the advisory.

The flaws, tracked as CVE-2026-20337 to CVE-2026-20339 and CVE-2026-20345 to CVE-2026-20348, affect ClamAV parsers for several file formats. ClamAV fixed them in version 1.5.4, Cisco later warned that public PoCs are available for the vulnerabilities CVE-2026-20337 and CVE-2026-20338. Company’s PSIRT said it has no evidence that attackers have exploited these vulnerabilities in the wild.

“”The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in CVE-2026-20337 and CVE-2026-20338.The Cisco PSIRT is not aware of proof-of-concept exploit code for any of the other vulnerabilities that are described in this advisory.” continues the advisory. “The Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory.”

Below are the descriptions of CVE-2026-20337 and CVE-2026-20338:

  • CVE-2026-20337 (CVSS score of 7.5) – CVE-2026-20337: ClamAV Zip File Format Processing Out-of-Bounds Write Vulnerability – A vulnerability in the zip archive parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper boundary checks for content in zip files during scanning, which may result in an out-of-bounds write condition. An attacker could exploit this vulnerability by submitting a crafted zip file for scanning. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
  • CVE-2026-20337 (CVSS score of 7.5) – ClamAV Zip File Format Processing Memory Corruption Vulnerability – A vulnerability in the zip archive parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper memory handling when processing content in zip files during scanning. An attacker could exploit this vulnerability by submitting a crafted zip file for scanning. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate as a result of a memory double-free, resulting in a DoS condition on the affected software.

Cisco identified the affected products in its advisory and recommends customers check the related bug IDs for details on each vulnerability.

Affected Cisco Software PlatformCVSS Base ScoreSecurity Impact RatingCisco Bug IDsFirst Fixed Release
Secure Endpoint Connector for Linux5.3MediumCSCwv87285Release no. TBD (Aug 2026)
Secure Endpoint Connector for Mac5.3MediumCSCwv87286Release no. TBD (Aug 2026)
Secure Endpoint Connector for Windows7.5HighCSCwv87283Release no. TBD (Aug 2026)

Secure Endpoint Private Cloud is not affected, but must distribute the fixes to endpoints.

Cisco said no workaround is available. Patches will be released in August. The flaws are high risk on Windows because ClamAV runs with elevated privileges, while macOS and Linux face medium risk.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, newsletter)

Ransomware Now Shows Up in Nearly Half of All Breaches: A Survival Playbook for Lean Security Teams

ransomware incident response plan

Ransomware stopped being an isolated incident type in 2025. It became the dominant force behind the modern breach landscape, and the ransomware data breach statistics from Cyble's own tracking make the shift impossible to ignore. For organizations facing this growing threat, having a ransomware incident response plan in place is becoming just as important as preventing an attack in the first place.

Cyble's Global Cybersecurity Report 2025 documented 5,967 ransomware attacks for the year, a 50% year-over-year jump. Against the 6,046 data breaches and leaks recorded in the same period, ransomware accounted for nearly half — 49.7% — of the combined ransomware-and-breach total tracked by Cyble Research and Intelligence Labs (CRIL). That's the "nearly half" this blog's title refers to, and it isn't a projection. It's what Cyble observed. 

The pace hasn't slowed into 2026: 

Ransomware-as-a-service Threats Have Removed the Skill Barrier 

CRIL identified 57 new ransomware groups and 27 new extortion groups in 2025, alongside more than 350 new ransomware strains built largely on the MedusaLocker, Chaos, and Makop families.  

This is the mechanics of RaaS: affiliates rent pre-built toolkits, and operational capacity scales faster than any single group's headcount. Between January and April 2025, this dynamic drove an 86% spike in global incidents, with Cl0P alone responsible for 28% of that quarter's activity, per Cyble's Ransomware Threat Landscape report

Double Extortion Ransomware is the Baseline, Not the Exception 

Encrypt-and-leak is now standard operating procedure. CRIL's research into extortion technique evolution tracked groups layering in triple extortion (DDoS on top of encryption and data theft) and direct outreach to a victim's clients — a tactic CL0P has used to compound reputational damage beyond the initial breach. For a lean team, this means "we have backups" no longer neutralizes the threat; the data theft component still forces a decision. 

Why Cost Pressure Hits Small Teams Hardest 

Cyble's Europe Q1 2026 findings noted that attackers are deliberately targeting sectors with narrow downtime tolerance — manufacturing and construction firms face contract penalties and supply-chain breakage within days of an outage, which shortens the runway between intrusion and ransom decision. Lean security teams, by definition, have the least slack to absorb that pressure. 

How to Prevent Ransomware Attacks in 2026: What the Data Points to 

The October 2025 surge to 5,194 year-to-date attacks was fueled by a steady supply of critical vulnerabilities and unpatched internet-facing assets, per Cyble's analysis. For small teams, prevention priorities follow directly from that finding: 

  • Patch internet-facing systems against CISA KEV entries first — over 86% carry CVSS scores of 7.0 or higher. 

  • Treat remote-management tools (RMM, VPN, RDP) as high-risk attack surface; Qilin affiliates have abused WinSCP, AnyDesk, and ScreenConnect for lateral movement. 

  • Monitor for BYOVD (Bring Your Own Vulnerable Driver) activity, a technique increasingly paired with credential-harvesting toolkits. 

Zero Trust Security for Small Teams is Achievable Without Enterprise Budgets 

Zero trust doesn't require a full architecture overhaul on day one. The practical entry points for a lean team: 

  • Enforce MFA on every remote access path, especially RMM and VPN tools — the same tools driving initial access in Cyble's tracked campaigns. 

  • Segment networks so a single compromised endpoint can't reach backup infrastructure. 

  • Apply least-privilege access reviews quarterly, not annually. 

Endpoint Detection and Response for Small Business is the Non-negotiable Layer 

Given that Qilin and similar groups deploy Linux-based binaries on Windows hosts and harvest credentials via NirSoft and Mimikatz-style toolkits, EDR coverage across every endpoint — not just servers — is the difference between detection in hours versus discovery via a ransom note. 

Building a Ransomware Incident Response Plan Before it's Needed 

A working ransomware incident response plan and cybersecurity incident response checklist should cover, at minimum: 

  • Pre-approved communication chain (legal, leadership, cyber insurance, law enforcement contact) that doesn't depend on compromised email. 

  • Isolated, tested offline backups with a documented restoration time objective. 

  • A decision framework for the ransom-payment question, made before an attack, not during one. 

  • Log retention sufficient to reconstruct the intrusion timeline for post-incident analysis. 

Ransomware Recovery Best Practices After the Encryption Hits 

The ransomware incident response plan and recovery speed depend on preparation done months earlier: validated backup integrity, a pre-mapped list of critical systems in priority order, and a rehearsed communication plan for customers and regulators. Teams that treat recovery as an extension of the incident response plan — rather than an improvised scramble — cut both downtime and the pressure to pay. 

How Cyble Can Help 

Every ransomware statistic in this ransomware incident response plan playbook — the leak-site counts, the group rankings, the extortion techniques, the sector targeting — traces back to one thing: visibility into where attackers operate before they hit a victim's network. That's the gap Cyble Vision is built to close. 

Cyble Vision is the threat intelligence platform behind CRIL's own research, continuously monitoring deep, dark, and surface web sources — ransomware leak sites, underground forums, and threat actor chatter — through its Blaze AI engine.  

For a lean security team, that means the same early-warning signal CRIL uses to track Qilin, Akira, and every emerging RaaS affiliate becomes available as a live feed for their own organization: exposed credentials, brand mentions on cybercrime forums, ransomware group activity tied to their sector, and third-party breach exposure, all correlated and prioritized automatically instead of requiring a dedicated analyst to piece it together manually. 

For a team that can't staff round-the-clock dark web monitoring or manually track which of the dozens of active ransomware groups is circling their industry, this is the difference between finding out from a leak site and finding out weeks earlier. 

Lean teams can't out-staff ransomware operators, but they can out-see them. Request a Cyble Vision demo to get the same dark web and ransomware-tracking intelligence CRIL uses to build reports like this one — built for teams that need to know who's targeting them before the leak site does. 

Conclusion 

A ransomware incident response plan for small security teams isn't about matching enterprise headcount. It's about aligning limited resources against the specific mechanics CRIL has documented: patch the exploited CVEs first, lock down remote-access tools, deploy EDR broadly, and rehearse the incident response plan before the RaaS-fueled affiliate economy finds the gap. 

References: 

The post Ransomware Now Shows Up in Nearly Half of All Breaches: A Survival Playbook for Lean Security Teams appeared first on Cyble.

UK Cybercrime Journal: Qilin Ransomware Rampage in H1 2026

 

What Happened

  • Throughout H1 2026, the Qilin ransomware-as-a-service (RaaS) Tor data leak site (DLS) listed the most UK-based victims out of all ransomware gangs, with up to 37 British organisations hit in total. Qilin's victim count is followed by DragonForce with 21 victims listed, and TheGentlemen with 18 listed.
  • The fallout from the Qilin attack on the UK National Health Service (NHS) supplier, Synnovis, in 2024 persists as well. On 1 June 2026, the Bedfordshire Hospitals NHS Foundation Trust disclosed that over 32,000 patient data records related to Synnovis tests were exfiltrated and took over a year to analyse what information was related to which patient. The breached data includes patient name and number, date of birth, postcode, and test results.
  • In H1 2026, Qilin averaged between seven and nine published UK victims per month. For the entries listing an estimated attack date, there was a roughly six-week extortion lifecycle on average, from initial intrusion to the date the victim is publicly named.
  • This UK footprint highlights their aggressive pursuit of Small-to-Medium Enterprises (SMEs) as most organisations had a revenue between £10m and £250m.
  • Interestingly, one of the Qilin victims, Salford City College, also appeared on both the Qilin and DragonForce Tor data leak site (DLS) only a few days apart from 6 March to 10 March 2026, respectively.

Qilin’s UK-based victims from H1 2026 spanned a diverse range of sectors:

  • Construction & Property Development
  • Manufacturing & Engineering
  • Legal & Professional Services
  • Technology & IT Infrastructure
  • Education
  • Healthcare

Analyst Comment 

Many of the organisations targeted by Qilin operators are just large enough to have the funds to pay mid-tier ransoms but often never got around to making an investment into a 24/7 dedicated threat detection service, such as an outsourced Security Operations Centre (SOC). Such services are usually enough protection to prevent an attack. If a ransomware affiliate faces tough resistance from a target, they often move on to a weaker and easier one.

One key face to also note about Tor data leak sites operated by ransomware groups is that they include victims who failed to pay the ransom. The total number of victims by each group is often going to be higher.

The reason for the cross-posting of Salford City College is unknown for now. However, it could indicate that an affiliate may be using both Qilin and DragonForce RaaS platforms. An alternative theory could be that the college was hit by two affiliates of each RaaS. Interestingly, cross-posting on multiple leak sites is not as uncommon as it seems. Some victims listed on the Qilin leak site have historically appeared on the leak sites of ALPHV/BlackCat and Conti as well.

The Ransomware Vulnerability Matrix Group Profile for Qilin reveals a diverse set of exploits leveraged by its operators. Like many other ransomware gangs, Qilin operators have exploited corporate VPN gateways such as Fortinet, Check Point, and WatchGuard for initial access. Interestingly, the exploitation of SmarterTools SmarterMail and SolarWinds Web Help Desk is less common but are also exploited by the Warlock ransomware gang. Another common theme from Qilin's Ransomware Tool Matrix Group Profile is their regular abuse of Bring Your Own Vulnerable Driver (BYOVD) tactics to bypass Endpoint Detection and Response (EDR) and Antivirus software.

Defensive Takeaways 

  • Harden Common Attack Paths: Treat any web-facing helpdesk or mail server as a high-risk device. If it does not absolutely require open internet access, place it behind a zero-trust network access gateway or a strict VPN. Enforce strict phishing-resistant Multi-Factor Authentication (MFA) on all remote access points. Ensure processes are in place for rapid patching and integrity checks for all corporate VPN gateways.
  • Overcoming SME Resource Caps: Organisations must bridge the gap with an outsourced MDR service. Ransomware execution routinely happens at 2:00 AM on Fridays and weekends. Outdated antivirus agents alone are not enough to stop a motivated human adversary.
  • Utilise Free Support Services: Capitalise on sovereign and community-vetted threat intelligence feeds to block attacker infrastructure early. UK defenders should actively enroll in the National Cyber Security Centre’s MyNCSC portal and integrate community resources like the Spamhaus DROP list and Abuse.ch tracking into their perimeter firewalls to automatically block known ransomware command-and-control (C2) nodes. ShadowServer and Team Cymru also offer useful free community resources.

Relevant Sources 

  1. https://www.bbc.co.uk/news/articles/c1d2wwyd6qqo
  2. https://www.bedfordshirehospitals.nhs.uk/news/notification-synnovis-cyber-incident/
  3. https://www.bleepingcomputer.com/news/security/qilin-ransomware-gang-linked-to-attack-on-london-hospitals/

Relevant CTI Sources

  1. https://www.ransomware.live/map/GB
  2. https://www.ransomware.live/group/qilin
  3. https://www.ransomware.live/id/c2FsZm9yZGNjLmFjLnVrQGRyYWdvbmZvcmNl
  4. https://www.ransomware.live/id/U2FsZm9yZCBDaXR5IENvbGxlZ2VAcWlsaW4
  5. https://github.com/BushidoUK/Ransomware-Tool-Matrix/blob/main/GroupProfiles/Qilin.md
  6. https://github.com/BushidoUK/Ransomware-Vulnerability-Matrix/blob/main/GroupProfiles/Qilin.md
  7. https://blog.bushidotoken.net/2024/06/tracking-adversaries-qilin-raas.html 
  8. https://www.bleepingcomputer.com/news/security/check-point-links-vpn-zero-day-attacks-to-qilin-ransomware-gang/

Pass the Passkey: A Novel Attack Surface in Passwordless Authentication

Explore how passkey implementation gaps undermine security when relying parties fail to validate the User Verified flag, reducing MFA to a single factor.

The post Pass the Passkey: A Novel Attack Surface in Passwordless Authentication appeared first on Unit 42.

UK’s state investments agency hit by data breach

Security lapse leaves sensitive information and contact details of 51 government officials exposed for 40 hours

The public body in charge of the UK’s state investments has been pushed to improve its internal security after a data breach left “high-level management information” publicly accessible for nearly two days.

UK Government Investments (UKGI), the agency that manages the taxpayers’ interest in a swathe of companies including Channel 4 and the Post Office, said the security failure also left more than 50 government officials’ personal details exposed for nearly 40 hours.

Continue reading...

© Photograph: Marina Demidiuk/Alamy

© Photograph: Marina Demidiuk/Alamy

© Photograph: Marina Demidiuk/Alamy

CaptiveCrunch: Midnight Blizzard targets travelers worldwide for malware delivery and credential theft

Since early May 2026, Microsoft Threat Intelligence has observed Storm-2945, a sub-cluster of Midnight Blizzard, conducting widespread but targeted traffic manipulation attacks involving hospitality sector networks served by captive portals worldwide. Despite some tactic, technique, and procedure (TTP) similarities to the Forest Blizzard DNS hijacking operation that we publicly disclosed in April 2026, we attribute this campaign, which we call CaptiveCrunch, to Storm-2945. As reported by ReliaQuest on July 23, a portion of this activity leverages doppelganger domains mimicking Microsoft online services to conduct follow-on adversary-in-the-middle (AitM) phishing operations that abuse the device code authentication flow in Microsoft Entra ID. Microsoft Threat Intelligence has also identified active traffic manipulation attacks leading to the delivery of malware on impacted systems. Microsoft has observed Storm-2945 leveraging AI to support a significant portion of these operations.

Today, we are sharing our findings on these ongoing intrusions to raise awareness of this threat and enable customers to protect their devices, especially while traveling. We provide our assessment of Storm-2945’s relationship to Midnight Blizzard and analysis of the CaptiveCrunch campaign, detailing the malware and tradecraft used in these operations. We also provide mitigation, detection, and hunting guidance to help organizations identify and defend against Storm-2945 and related activity.

Microsoft Threat Intelligence would like to thank our partners at Anthropic and OpenAI for their collaboration and support during this investigation.

The CaptiveCrunch campaign

Since February 2026, Storm-2945 has conducted AI-augmented operations including targeted device code and OAuth code phishing campaigns leading to Entra device registration and subsequent data collection from Microsoft 365. Since early May 2026, Microsoft Threat Intelligence has observed Storm-2945 manipulating DNS and HTTP traffic from networks served by captive portals to redirect user traffic through actor-controlled infrastructure. Although our investigation into the initial compromise vector for the captive portal networks is ongoing, we have observed notable commonalities in the equipment and management systems used across multiple affected networks. These similarities suggest that the activity might not be limited to isolated compromises of individual venues and could reflect access to shared services within portions of the captive portal ecosystem.

Diagram depicting an overview of the CaptiveCrunch campaign attack flow
Figure 1. Overview of the CaptiveCrunch attack flow

As part of the CaptiveCrunch campaign, Storm-2945 has leveraged their AitM position to redirect users through actor-controlled phishing infrastructure and has also delivered malware purporting to be browser or operating system updates in response to automated connectivity checks issued by users’ browsers. Multiple variants have been delivered, including fully-featured Windows remote access trojans (RAT) in compiled Golang, with functionality to conduct system enumeration, collect files and keystrokes, steal credentials and session tokens, conduct audio and video surveillance, monitor for removable media, and provide the threat actor a remote shell on infected systems.  

The threat actor infrastructure leverages a variety of ClickFix techniques to elicit the user into downloading and executing the malware:

A Windows Driver Repair Utility interface, with instructions for manually repairing a failed automated driver repair, including steps to run a verification script via Windows Terminal.
Figure 2. ClickFix prompt with manual user instructions
A Google web page claiming the verification check failed with additional manual instructions for the user to follow.
Figure 3. ClickFix prompt with additional user instructions after verification failure

In addition to variants of malware targeting Windows systems, Microsoft Threat Intelligence is also aware of indications that the threat actor might be targeting Android devices with similar techniques as the ClickFix landings also include instructions for Android devices to download and install an APK file.

To date, Microsoft has identified widespread compromise of Wi-Fi networks at hospitality-related organizations and other networks serviced by captive portal equipment in several countries. ReliaQuest has identified this activity not only at hotels, but also conference centers and other shared venues, and assesses that the goal of this activity is to access the accounts of corporate travelers.

Storm-2945 and Midnight Blizzard

Microsoft Threat Intelligence assesses that Storm-2945 is an operational sub-cluster of Midnight Blizzard based on distinctive technical and operational overlaps. These include technical similarities to Storm-2372, a Midnight Blizzard initial access operations sub-cluster, also notable for their device code and OAuth code phishing operations tracked throughout 2025, Microsoft Graph-based email exfiltration, social engineering delivered via commercial messaging apps, and significant similarities in victimology.

Midnight Blizzard is a Russia-based threat actor attributed by the US and UK governments to the Foreign Intelligence Service of the Russian Federation, also known as the SVR. This threat actor is known to primarily target governments, diplomatic entities, non-governmental organizations (NGOs), and information technology (IT) service providers, primarily in the US and Europe. Midnight Blizzard is consistent and persistent in their operational targeting, and their objectives rarely change. Their focus is to collect intelligence through longstanding and dedicated espionage in support of Russian foreign policy interests.

Midnight Blizzard operations often involve compromise of valid accounts and, in some highly targeted cases, advanced techniques to compromise authentication mechanisms within an organization to expand access and evade detection. They utilize diverse initial access methods, and Midnight Blizzard is also adept at identifying and abusing OAuth applications to move laterally across cloud environments and for post-compromise activity, such as email collection.

CaptiveCrunch tradecraft and tooling

CornFlake: Remote access and infostealer implant

CornFlake is a full-featured Windows RAT written in Go that serves as Storm-2945’s primary persistent implant. Microsoft has observed the threat actor rapidly iterating on this malware layer, which features customizable capabilities from the social engineering user interface and data collection capabilities to anti-detection and evasion techniques.

On initial execution, CornFlake operates in dropper mode: it displays a convincing fake progress window designed to occupy the victim’s attention while the binary copies itself to %APPDATA%\svchost32\svchost32.exe and establishes persistence.

Fake window options configurable by the threat actor at build time:

  • winupdate — A Windows Update screen displaying “Working on updates… Don’t turn off your computer”
  • defender — A Windows Security virus scan
  • directx — A DirectX End-User Runtime Web Installer
  • vcredist — A Microsoft Visual C++ 2015-2022 Redistributable installer
  • sysopt — A disk optimization utility
  • netfix — A Windows Network Diagnostics tool
  • browser — A browser update prompt
  • pdfview — A document viewer installer
A false update window claiming the updates are 3 percent downloaded.
Figure 4. False update window

CornFlake registers as a Windows service named svchost32 with the display name “Cloud Sync Service and description “Synchronizes files with the cloud storage provider”, deliberately mimicking the legitimate svchost.exe process. It establishes redundant persistence mechanisms: Windows service registrations, Registry Run keys, named scheduled tasks, and a persistence watchdog routine that runs continuously to restore any persistence mechanism that is removed by defenders or endpoint protection.

For command and control (C2), CornFlake performs an Elliptic Curve Diffie-Hellman (ECDH) P-256 ephemeral key exchange with the C2 server, derives a session key via SHA-256, and communicates over a custom JSON protocol framed within the encrypted channel. This provides an encrypted channel to the C2 server, with each C2 session using a unique ephemeral key, making decryption of captured traffic impossible without the session-specific private key. The runtime configuration file sync.dat supports hot reconfiguration of C2 servers, watched directories, file targeting patterns, and Transport Layer Security (TLS) settings without requiring redeployment.

Once established on a victim system, CornFlake provides the operator with a comprehensive collection toolkit, gated by configuration flags that allow selective activation post-deployment:

CapabilityDescription
KeyloggingRaw input API-based keylogger capturing all keystrokes, including password fields
Clipboard monitoringCaptures clipboard changes with SHA-256 deduplication and records the active window title at time of capture
Screenshot captureIdle-triggered and on-demand screenshots with configurable idle threshold
Audio surveillanceWindows Audio Session API (WASAPI)-based microphone capture, encoded as WAV files
Video surveillanceMedia Foundation-based webcam capture, encoded as JPEG
Browser credential theftChromeKatz-derived module supporting live cookie extraction from process memory (Chromium browsers) and stored password extraction from on-disk databases, including Chrome App-Bound Encryption (ABE) bypass and Firefox NSS/SDR decryption
File exfiltrationTargets files based on file extensions with real-time file system monitoring and an upload throttle (1,000 files or 500 MB per cycle). File extensions are categorized as Documents, Archives, Images, Code, Data, Emails, and Keys
USB drive monitoringDetects and scans removable media when inserted
Security posture sweepCollects 18 categories of host intelligence including installed software, antivirus (AV)/endpoint detection and response (EDR) products, Defender exclusions, User Account Control (UAC) level, Remote Desktop Protocol (RDP) history, Office most recently used (MRU) files, and credential hints
Remote shellArbitrary command execution via cmd.exe or PowerShell (with -NoP flag to suppress profile-based detection)

CornFlake also exposes a localhost HTTP API server (/upload, /reload, /status) that transforms the RAT into a modular platform: companion or next-stage payloads such as ChocoShell could task file exfiltration, trigger configuration hot reloads or check C2 connectivity using the pre-established secure C2 channel for communication.

ChocoShell: PowerShell infostealer

ChocoShell is the campaign’s Powershell-based infostealer, delivered and executed entirely in-memory. Its primary objective is the high-volume theft of browser session cookies, saved passwords, Microsoft 365 Single Sign-On (SSO) tokens, and Wi-Fi credentials from compromised systems. Where CornFlake provides the operator with a persistent, long-running foothold on the device, ChocoShell is designed to extract the most operationally valuable credentials, giving the operator access to victim cloud environments.

The ChocoShell script was authored with full developer comments that reveal the operator’s intent behind each code decision, including explicit references to Microsoft detection signatures and the reasoning behind specific evasion choices. The consistent coding standard and descriptive commentary suggest the author might have leveraged AI-assisted code generation.

Defense evasion. Upon execution, ChocoShell beacons to a hardcoded C2 server at 213.145.86[.]112 and implements several evasion techniques in sequence. It disables the Antimalware Scan Interface (AMSI) via .NET reflection to prevent ScriptBlock scanning and evades Microsoft behavioral detection that triggers on suspicious PowerShell web request cmdlets. A timing-based sandbox detection check is also employed as a virtual machine (VM) detection mechanism, silently exiting without performing any collection if detected.

C2 communication. ChocoShell communicates with its C2 server using HTTPS with URI paths designed to blend in with legitimate web traffic. Beacons use /t/pixel.gif?m=<status>, mimicking an image tracking pixel. Additional tooling is fetched from /cdn/chunks/polyfill-7e2b.min.js, disguised as a JavaScript polyfill file. This downloaded module is Base64-decoded and executed in memory via [ScriptBlock]::Create(), providing browser encryption key extraction capabilities, SYSTEM token impersonation, and Defender signature locking. Exfiltrated data is sent by POST to /t/event as GZip-compressed, Base64-wrapped JSON.

Privilege escalation. ChocoShell requires administrative privileges for its most impactful capabilities: SYSTEM token impersonation for Chrome ABE decryption, Volume Shadow Copy Service (VSS) shadow copy creation, Defender signature locking. It implements three silent UAC bypass techniques with ordered fallback:

  1. SilentCleanup task hijack: Writes a malicious command to HKCU\Environment\windir, then triggers the built-in SilentCleanup scheduled task, which resolves %windir% from the user’s environment, executing the threat actor’s command at elevated privilege. The registry value is cleaned up after two seconds to avoid cloud detection.
  2. wsreset.exe COM hijack: Creates a COM handler key in HKCU\Software\Classes and launches the auto-elevating Windows Store reset tool.
  3. sdclt.exe folder hijack: Hijacks HKCU\Software\Classes\Folder\shell\open\command and launches the Windows Backup utility with the /KickOffElev flag.

If none of the silent bypasses succeed (for example, the user is not a local administrator), ChocoShell falls back to a visible UAC prompt via Start-Process -Verb RunAs. Notably, the script also contains a variant designed to execute within the WinGet Desired State Configuration (DSC) host process (ConfigurationRemotingServer), suggesting an attack vector through malicious WinGet DSC configuration used in Windows machine provisioning.

Credential and session theft. Once running with elevated permissions, ChocoShell locks Defender signature updates and systematically harvests data from multiple sources. For Chromium-based browsers (Chrome, Edge, Brave, Opera, Opera GX, Vivaldi), it extracts the master encryption key from the browser’s Local State file, handling both the modern ABE scheme (Chrome v127+) and the legacy data protection API (DPAPI)-only scheme. ABE decryption requires SYSTEM-level DPAPI access, which the malware obtains by impersonating a SYSTEM process token borrowed from winlogon.exe, wininit.exe, or services.exe. Locked browser SQLite databases are accessed through three strategies: shared file access, Volume Shadow Service snapshots, and direct copy as a fallback.

As a parallel collection path, ChocoShell launches Chrome, Edge, and Brave with the –remote-debugging-port flag and issues Network.getAllCookies through the Chrome DevTools Protocol (CDP). This completely bypasses ABE, enabling the browser to perform its own internal decryption and returns plaintext cookie values. To handle privilege issues (SYSTEM-launched browsers inherit the wrong token), the malware creates transient scheduled tasks with TASK_LOGON_INTERACTIVE_TOKEN to launch the browser under the signed-in user’s session. After extraction, the browser is stopped and relaunched with –restore-last-session to avoid alerting the user.

For Firefox family browsers (Firefox, Waterfox, LibreWolf, Floorp, Zen), the malware copies unencrypted cookies.sqlite databases from each profile. Additionally, ChocoShell collects Microsoft 365 and Azure Active Directory (AD) access tokens, refresh tokens, and Web Account Manager (WAM) tokens from .tbres files in the Token Broker cache. Collection of these tokens represents a significant threat to enterprise environments, as threat actors could replay SSO sessions without browser cookies. Additionally, Wi-Fi credentials are harvested via netsh wlan show profile with key=clear.

Exfiltration and cleanup. All collected data is aggregated into a JSON structure, GZip-compressed, Base64-encoded, and sent by POST to the C2’s /t/event endpoint. After exfiltration, all collected data variables are nulled, garbage collection is forced, VSS shadow copies are deleted via Windows Management Instrumentation (WMI), temporary elevation scripts are removed, and all UAC bypass registry keys (already cleaned during escalation) are verified removed.

FruitStone: Operator C2 panel

FruitStone is the web-based C2 panel that Storm-2945 operators use to manage the entire CaptiveCrunch campaign infrastructure. Implemented as a single-page application (HTML and JavaScript) serving as the front-end of the C2 server with all functionality exposed without authentication, FruitStone provides a centralized dashboard for managing compromised endpoints, building and deploying new campaign payloads, and reviewing all collected data (such as screenshots, keystrokes, browser credentials).

Operational cover. The panel is branded as “CloudSync Console” with a footer reading “Acuity Systems, Inc. — Cloud Infrastructure Portal v3.2.1,” designed to appear as legitimate enterprise cloud management software if the panel URL is discovered by defenders or hosting providers. This masquerading extends to the CornFlake agent’s service name (Cloud Sync Service) and description (“Synchronizes files with the cloud storage provider”), creating a consistent cover story across the toolchain.

The CloudSync Console masquerading as Acuity Systems, Inc. sign-in panel.
Figure 5. CloudSync Console panel masquerade

Session management and multi-operator support. FruitStone uses JSON Web Token (JWT)-based authentication, session revocation, and rate limiting with IP blocking to prevent brute force attacks against the panel sign in. Multiple operators could be provisioned with individual accounts, and all active sessions are visible with IP address, user-agent, and creation time to enable operational security awareness across the operators.

Agent management. The panel displays all registered CornFlake agents in a dashboard with real-time status updates via Server-Sent Events (SSE). Each agent card shows comprehensive system information including hostname, username, OS version, CPU, RAM, disk usage, screen resolution, timezone, domain membership, and camera/microphone presence, all collected during the CornFlake posture sweep. Agents are grouped by country and subnet, with geographic distribution visualized on a map.

Operators could interact with individual agents through:

  • Remote shell — Interactive cmd.exe or PowerShell command execution with command history
  • File system browser — Live directory traversal and arbitrary file download from compromised hosts
  • Collection tasking — On-demand screenshot, process list, keylog buffer flush, clipboard dump, security posture survey, ChromeKatz cookie/password extraction, camera capture, and audio recording
  • Configuration push — Live runtime reconfiguration of C2 servers, watch paths, and C2 beacon timing
  • Agent update — In-place implant update by pushing a new CornFlake build to a running agent
  • Agent kill — Remote termination of the CornFlake implant

Campaign builder. A step-by-step wizard enables operators to configure and build new CornFlake payloads directly from the panel:

  1. Identity — Campaign ID, C2 host and port, HTTP base URL, executable file name (svchost32.exe by default), and dropper type (C dropper at ~19 KB, Go stub at ~8 MB, or standalone self-installer)
Figure 6. Identity tab
  1. Capabilities — Toggle individual collection modules: screenshots, process enumeration, keylogging, clipboard monitoring, posture survey, file exfiltration, and ChromeKatz browser credential theft
Figure 7. Capabilities tab
  1. File Paths — Configure targeted directories and file extensions by category (documents, archives, images, code, data, emails, encryption keys)
Figure 8. File paths tab
  1. Evasion — Enable garble symbol randomization (for GoLang payloads), XOR string encoding, GZip upload compression, and debug mode
Figure 9. Evasion tab

Infrastructure management. FruitStone provides management interfaces for three layers of supporting infrastructure:

  • Proxy relays — Multi-proxy C2 relay architecture with TLS certificate tracking (fingerprint, expiry), health checks, connection counts, bytes forwarded, and rotation capabilities that push updated server lists to all online agents
  • Beacon profiles — Configurable timing profiles controlling agent sleep intervals, reconnection delays, TLS Server Name Indication (SNI) spoofing (like teams.microsoft.com), and DNS fallback domains
  • Staging servers — External payload hosting infrastructure with push-to-deploy, file listing, and health monitoring
Figure 10. View of the CloudSync staging servers interface

Device code abuse for cloud access

Since July 16, Microsoft has observed a portion of CaptiveCrunch landing pages redirecting users to device code authentication flow experiences. In these cases, users served these landings might be instructed to enter a device code into a legitimate Microsoft sign-in page, a technique commonly referred to as device code phishing.

Device code authentication is a legitimate OAuth workflow designed for devices that cannot support a traditional sign-in experience. However, threat actors could abuse this flow by initiating an authentication request on behalf of a user then convincing the user to enter an actor-controlled device code into a legitimate Microsoft authentication page. When successful, the victim authenticates the threat actor’s session rather than their own.

This activity is consistent with previously reported device code phishing operations conducted by Midnight Blizzard since August 2024. The observed technique does not appear fundamentally novel; however, integrating device code phishing into captive portal and traffic manipulation operations might increase the likelihood that users perceive the authentication request as legitimate. For additional details on Midnight Blizzard-related device code phishing techniques, see: Storm-2372 conducts device code phishing campaign. To understand other threat actors’ use of device code phishing and associated mitigations, see Inside an AI‑enabled device code phishing campaign.

How to protect against CaptiveCrunch activity

Minimize trust in hospitality and guest networks

When traveling, users should treat hotel, conference, airport, and other guest wireless networks as untrustworthy.

  • Prefer private connectivity (including mobile hotspots, satellite, and eSIM-based cellular data connections) over public Wi‑Fi whenever practical.
  • Consider using enterprise-managed travel routers or hotspot devices that establish encrypted tunnels back to trusted corporate infrastructure before accessing sensitive resources.
  • Avoid downloading software updates, certificates, browser updates, network troubleshooting tools, or security utilities presented through captive portals or other unexpected web prompts.
  • Verify update requests through trusted operating system mechanisms rather than pop-up messages or website prompts.

Strengthen identity and access controls

Organizations should assume that public and hospitality network infrastructure might not be trustworthy and should adopt controls that limit exposure to traffic manipulation, credential theft, and device code phishing.

  • Educate users to recognize ClickFix-style prompts, fake verification checks, and paste-and-run instructions as malicious, especially when they invoke command interpreters or script hosts such as cmd.exe, PowerShell, rundll32.exe, or mshta.exe.
  • Use passwordless solutions like passkeys and implement multifactor authentication (MFA).
  • Only allow device code flow where necessary. Microsoft recommends blocking device code flow wherever possible. Where necessary, configure Microsoft Entra ID’s device code flow in your Conditional Access policies.
  • Implement a sign-in risk policy to automate response to risky sign-ins. A sign-in risk represents the probability that a given authentication request is not authorized by the identity owner. A sign-in risk-based policy can be implemented by adding a sign-in risk condition to Conditional Access policies that evaluates the risk level of a specific user or group. Based on the risk level (high/medium/low), a policy can be configured to block access or force MFA.
    • When a user is a high risk and Conditional access evaluation is enabled, the user’s access is revoked, and they are forced to re-authenticate.
    • For regular activity monitoring, use Risky sign-in reports, which surface attempted and successful user access activities where the legitimate owner might not have performed the sign-in. 
  • Use a Security Service Edge (SSE) solution like Global Secure Access to secure access to any app or resource using network, identity, and endpoint access controls.

Reduce exposure during captive portal registration

Organizations should review what information employees provide to hospitality providers when connecting to guest networks.

  • Do not reuse corporate credentials on hotel, conference, or guest-network registration pages.
  • Where possible, organizations should evaluate whether venue-provided wireless is required for corporate events and conferences.
  • Organizations should minimize unnecessary disclosure of employee identities, organizational affiliations, and travel details when booking accommodations or registering for guest network access, consistent with corporate policy and applicable local requirements.

Microsoft Defender detections and hunting guidance

Microsoft Defender customers can refer to the list of applicable detections below. Microsoft Defender coordinates detection, prevention, investigation, and response across endpoints, identities, email, apps to provide integrated protection against attacks like the threat discussed in this blog.

Microsoft Defender for Endpoint detects Storm-2945 activity under the detection Suspicious activity linked to a Russian state-sponsored threat actor has been detected. However, these alerts might be triggered by unrelated threat actor activity. The following chart lists Microsoft Defender detections specific to the TTPs utilized by Storm-2945 in this attack.

Tactic Observed activity Microsoft Defender coverage 
Initial accessFile download via captive portal redirection Microsoft Defender for Endpoint – Suspicious downloaded file
Initial accessClickFix technique, fake browser or OS update, initial file downloadMicrosoft Defender for Endpoint
– Possible initial access from an emerging threat
– Possible ClickFix activity
PersistenceCornFlake registers a Windows service, a Registry Run key, a scheduled taskMicrosoft Defender for Endpoint
– Suspicious Scheduled Task Process Launched  
– Suspicious scheduled task
– Suspicious file added to run key
– Suspicious service registration

Microsoft Entra ID Protection
– Microsoft Entra threat intelligence
– Verified threat actor IP
Stealth/Defense evasionChocoShell disables AMSIMicrosoft Defender for Endpoint
– Possible Antimalware Scan Interface (AMSI) tampering
Credential accessChocoShell’s theft of browser session cookies, saved passwords, Microsoft 365 SSO tokens, and Wi-Fi credentials.   Device code abuse.Microsoft Defender for Endpoint
– Possible theft of passwords and other sensitive web browser information
– Suspicious DPAPI activity

Microsoft Defender For Identity
– Anomalous OAuth device code authentication activity

Microsoft Defender XDR
– User account compromise via OAuth device code phishing
– Malicious sign in from an IP address associated with recognized attacker infrastructure
– Suspicious Azure authentication through possible device code phishing
CollectionCornFlake monitoring and loggingMicrosoft Defender for Endpoint
– Activity that might lead to information stealer
Privilege escalationChocoShell UAC bypass techniquesMicrosoft Defender for Endpoint
– UAC bypass was detected
– Possible Component Object Model (COM) hijacking

Microsoft Security Copilot

Microsoft Security Copilot is embedded in Microsoft Defender and provides security teams with AI-powered capabilities to summarize incidents, analyze files and scripts, summarize identities, use guided responses, and generate device summaries, hunting queries, and incident reports.

Customers can also deploy AI agents, including the following Microsoft Security Copilot agents, to perform security tasks efficiently:

Security Copilot is also available as a standalone experience where customers can perform specific security-related tasks, such as incident investigation, user analysis, and vulnerability impact assessment. In addition, Security Copilot offers developer scenarios that allow customers to build, test, publish, and integrate AI agents and plugins to meet unique security needs.

Threat intelligence reports

Microsoft Defender XDR customers can use the following threat analytics reports in the Defender portal (requires license for at least one Defender XDR product) to get the most up-to-date information about the threat actor, malicious activity, and techniques discussed in this blog. These reports provide the intelligence, protection information, and recommended actions to prevent, mitigate, or respond to associated threats found in customer environments.

Microsoft Security Copilot customers can also use the Microsoft Security Copilot integration in Microsoft Defender Threat Intelligence, either in the Security Copilot standalone portal or in the embedded experience in the Microsoft Defender portal to get more information about this threat actor.

Hunting queries

Microsoft Defender XDR

Microsoft Defender XDR customers can run the following advanced hunting queries to find related activity in their networks:

Detect file creation after Wi-Fi connectivity test on devices

The following query checks for a file creation on a device within two minutes of the device performing built‑in Network Connectivity Status Indicator (NCSI) test, which occurs when network connectivity is established to a Wi-Fi network with a captive portal. This activity might indicate an attacker’s initial access file presence on a device.

Please note that not all files discovered through this query might be malicious or related to this threat activity.

let ncsi_endpoints = dynamic(["msftconnecttest.com","edge-http.microsoft.com","msftncsi.com","captive.apple.com","clients1.google.com",
    "clients3.google.com","clients4.google.com","clients6.google.com","connectivitycheck.gstatic.com","connectivitycheck.android.com",
    "android.clients.google.com","www.gstatic.com","detectportal.firefox.com","detectportal.brave-http-only.com","cloudflareportal.com",
    "cloudflarecp.com","cloudflareok.com","connectivity-check.warp-svc","connectivity.cloudflareclient.com","spectrum.s3.amazonaws.com",
    "nmcheck.gnome.org"]);
let NCSIEvents = DeviceNetworkEvents
    | where Timestamp > ago(7d)
    | where RemoteUrl has_any (ncsi_endpoints)
    | project NCSI_Timestamp = Timestamp, DeviceId, DeviceName, RemoteUrl, NCSI_ReportId = ReportId, NCSI_InitiatingProcessFileName = InitiatingProcessFileName, NCSI_InitiatingProcessCommandLine = InitiatingProcessCommandLine, NCSI_AccountName = InitiatingProcessAccountName;
let FileDownloadEvents = DeviceFileEvents
    | where Timestamp > ago(7d)
    | where ActionType == "FileCreated"
    | where FileName has_any (".exe",".msi",".zip",".rar",".7z")
    | project Download_Timestamp = Timestamp, DeviceId, FileName, FolderPath, Download_ReportId = ReportId, Download_InitiatingProcessFileName = InitiatingProcessFileName, Download_InitiatingProcessCommandLine = InitiatingProcessCommandLine, Download_AccountName = InitiatingProcessAccountName;
NCSIEvents
| join kind=inner (
    FileDownloadEvents
) on DeviceId
| where Download_Timestamp >= NCSI_Timestamp and Download_Timestamp <= NCSI_Timestamp + 2m
| project
    NCSI_Timestamp,
    Download_Timestamp,
    DeviceName,
    DeviceId,
    RemoteUrl,
    FileName,
    FolderPath,
    InitiatingProcessFileName = Download_InitiatingProcessFileName,
    InitiatingProcessCommandLine = Download_InitiatingProcessCommandLine,
    AccountName = Download_AccountName,
    NCSI_ReportId,
    Download_ReportId

Detect connectivity to Storm-2945 infrastructure

The following query checks for connectivity to Storm-2945 infrastructure observed in this attack activity.

let target_domains = dynamic(["ms365-device.com", "ms365-live.com", "m365-owa.com", "owa-ms365.com"]);
let target_ips = dynamic(["31.57.243.154", "38.146.28.75", "38.146.28.132", "104.194.159.150", "107.189.26.194", "213.145.86.112"]);
DeviceNetworkEvents
| where RemoteUrl has_any(target_domains) or RemoteIP in (target_ips)
| project
    Timestamp,
    DeviceName,
    DeviceId,
    RemoteUrl,
    RemoteIP,
    LocalIP,
    InitiatingProcessFileName,
    InitiatingProcessCommandLine,
    AccountName = InitiatingProcessAccountName,
    ReportId

Detect CornFlake RAT presence on affected systems

The following query checks for the presence of the CornFlake RAT binary.

DeviceProcessEvents
| where FolderPath == "%APPDATA%\\svchost32\\svchost32.exe"
   or FolderPath endswith @"\svchost32\svchost32.exe"
| project Timestamp, DeviceName, DeviceId, FileName, FolderPath, InitiatingProcessFileName, InitiatingProcessCommandLine, AccountName, ReportId

Detect CornFlake RAT Windows service registration

The following query checks for the CornFlake RAT Windows service registration.

DeviceRegistryEvents
| where RegistryKey has @"\SYSTEM\CurrentControlSet\Services\svchost32"
| where ActionType == "RegistryValueSet"
| where (RegistryValueName == "DisplayName" and RegistryValueData == "Cloud Sync Service")
    or (RegistryValueName == "Description" and RegistryValueData == "Synchronizes files with the cloud storage provider")
| project
    Timestamp,
    DeviceName,
    DeviceId,
    RegistryKey,
    RegistryValueName,
    RegistryValueData,
    ActionType,
    InitiatingProcessFileName,
    InitiatingProcessCommandLine,
    InitiatingProcessAccountName,
    ReportId

Microsoft Sentinel

Microsoft Sentinel customers can use the TI Mapping analytics (a series of analytics all prefixed with ‘TI map’) to automatically match the malicious domain indicators mentioned in this blog post with data in their workspace. If the TI Map analytics are not currently deployed, customers can install the Threat Intelligence solution from the Microsoft Sentinel Content Hub to have the analytics rule deployed in their Sentinel workspace.

Detect network IP and domain indicators of compromise using ASIM

The following query checks IP addresses and domain IOCs across data sources supported by ASIM network session parser:

//IP list and domain list- _Im_NetworkSession
let lookback = 30d;
let ioc_ip_addr = dynamic(["213.145.86.112"]);
let ioc_domains = dynamic(["213.145.86.112/t/pixel.gif", "213.145.86.112/cdn/chunks/polyfill-7e2b.min.js", "213.145.86.112/t/event"]);
_Im_NetworkSession(starttime=todatetime(ago(lookback)), endtime=now())
| where DstIpAddr in (ioc_ip_addr) or DstDomain has_any (ioc_domains)
| summarize imNWS_mintime=min(TimeGenerated), imNWS_maxtime=max(TimeGenerated),
  EventCount=count() by SrcIpAddr, DstIpAddr, DstDomain, Dvc, EventProduct, EventVendor

Detect web sessions IP and file hash indicators of compromise using ASIM

The following query checks IP addresses, domains, and file hash IOCs across data sources supported by ASIM web session parser:

//IP list - _Im_WebSession
let lookback = 30d;
let ioc_ip_addr = dynamic(["213.145.86.112"]);
let ioc_sha_hashes =dynamic([“918fa52ae45ed60ba7cc8bdc99c3cbe9ab92e0375ec31fc05d0d4513be11c593”, “be99857449d2856dd5a84e21c8a3d5e0e01456adb44062ddec5a6b4970d8d42c”]);
_Im_WebSession(starttime=todatetime(ago(lookback)), endtime=now())
| where DstIpAddr in (ioc_ip_addr) or FileSHA256 in (ioc_sha_hashes)
| summarize imWS_mintime=min(TimeGenerated), imWS_maxtime=max(TimeGenerated),
  EventCount=count() by SrcIpAddr, DstIpAddr, Url, Dvc, EventProduct, EventVendor

Detect domain and URL indicators of compromise using ASIM

The following query checks domain and URL IOCs across data sources supported by ASIM web session parser:

// file hash list - imFileEvent
// Domain list - _Im_WebSession
let ioc_domains = dynamic(["https://213.145.86.112/t/pixel.gif", "https://213.145.86.112/cdn/chunks/polyfill-7e2b.min.js", "https://213.145.86.112/t/event"]);
_Im_WebSession (url_has_any = ioc_domains)

ChocoShell C2 communications

The following query detects ChocoShell communications with its C2 server using HTTPS with URI paths designed to blend in with legitimate web traffic. Beacons use /t/pixel.gif?m=<status>, mimicking an image tracking pixel.

let lookback = 30d;
let ioc_url_artifacts = dynamic(["/t/pixel.gif?m="]);
_Im_WebSession(starttime=todatetime(ago(lookback)), endtime=now())
| where DstDomain  in (ioc_url_artifacts)
| summarize imWS_mintime=min(TimeGenerated), imWS_maxtime=max(TimeGenerated),
  EventCount=count() by SrcIpAddr, DstIpAddr, Url, Dvc, EventProduct, EventVendor

Indicators of compromise

IndicatorTypeDescriptionFirst seen
ms365-device[.]comDomainCaptiveCrunch DCF redirect2026-07-23
ms365-live[.]comDomainCaptiveCrunch DCF redirect2026-05-14
m365-owa[.]comDomainCaptiveCrunch AitM infrastructure2026-07-20
owa-ms365[.]comDomainCaptiveCrunch AitM infrastructure2026-07-16
31.57.243[.]154  IP addressCaptiveCrunch AitM infrastructure2026-07-16
38.146.28[.]75  IP addressCaptiveCrunch AitM infrastructure2026-07-01
38.146.28[.]132IP addressCaptiveCrunch DNS Resolver2026-07-15
104.194.159[.]150  IP addressCaptiveCrunch AitM infrastructure2026-04-28
107.189.26[.]194IP addressChocoShell C2 / CaptiveCrunch DNS Resolver2026-02-27
213.145.86[.]112  IP addressChocoShell C22026-07-01
918fa52ae45ed60ba7cc8bdc99c3cbe9ab92e0375ec31fc05d0d4513be11c593  File hashCornFlake2026-07-03
be99857449d2856dd5a84e21c8a3d5e0e01456adb44062ddec5a6b4970d8d42cFile hashChocoShell2026-07-10

References

Learn more

For the latest security research from the Microsoft Threat Intelligence community, check out the Microsoft Threat Intelligence Blog.

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To hear stories and insights from the Microsoft Threat Intelligence community about the ever-evolving threat landscape, listen to the Microsoft Threat Intelligence podcast.

The post CaptiveCrunch: Midnight Blizzard targets travelers worldwide for malware delivery and credential theft appeared first on Microsoft Security Blog.

Tanaka Dominates Data Leak Landscape With 25 Leak Posts

Tanaka

Ransomware often dominates cybersecurity headlines, but stolen data has become an equally valuable commodity in the cybercrime economy. In the first half of 2026, one threat actor stood out in the data leak ecosystem: Tanaka, a prolific data leak broker responsible for more publicized leak activity than any other actor tracked by Cyble.  Cyble researchers recorded 367 data breach and leak incidents worldwide between January and June 2026. While dozens of actors participated in selling or publishing stolen information, Tanaka emerged as the most active, accounting for 25 distinct leak posts — more than double the activity of several other major actors. 

A Data Leak Operation Without Industry Boundaries 

Unlike threat actors that specialize in a single vertical, Tanaka followed a broad targeting approach across multiple industries and regions. The actor’s campaigns showed no strict preference for a specific sector, instead focusing on organizations where stolen information could hold financial or strategic value.  The Banking, Financial Services, and Insurance (BFSI) sector remained the most targeted industry globally, accounting for 38 breach incidents during the reporting period. Financial organizations continue to attract attackers due to the value of customer information, account data, and personally identifiable information (PII).  Government and Technology organizations were also frequent targets, reflecting the wider value of sensitive records, intellectual property, and institutional data. 

Regional Presence Across Major Markets 

Tanaka’s activity was visible across multiple regions. In North America, the actor was responsible for seven leak posts, making it the most active data leak actor in the region alongside other prominent sellers.  Europe and the UK also saw significant activity, with Tanaka linked to six leak posts during H1 2026. The region’s BFSI, Telecommunications, and Retail sectors faced heightened exposure due to the amount of valuable customer and financial data they hold.  The actor’s global footprint demonstrates how modern data leak operations can function independently of geography. Instead of focusing on a single country or industry, operators like Tanaka exploit opportunities wherever valuable information becomes available. 

The Rise of the Data Leak Marketplace 

Tanaka’s activity reflects a broader shift in the cybercrime ecosystem. Data leaks are no longer only a byproduct of ransomware attacks; they have become a standalone business model.  Threat actors monetize stolen information through underground marketplaces, using leaked databases for fraud, extortion, intelligence gathering, or resale. This specialization mirrors other parts of the cybercrime economy, where access brokers, ransomware affiliates, and data sellers perform separate roles.  For organizations, this means a breach does not always begin with a ransomware demand. A stolen database appearing in underground channels may indicate an earlier compromise that requires immediate investigation. 

Staying Ahead of Data Exposure Risks 

Security teams must treat underground data exposure monitoring as part of their broader defense strategy. Identifying leaked credentials, compromised databases, or mentions in cybercrime marketplaces can provide early warning before stolen information is weaponized.  To understand the 2026 data breach landscape, including the most active threat actors, targeted industries, and regional trends, access the full Cyble H1 2026 Cyber Threat Landscape Report. 

APTs Top the List of Most Active Threat Actors in H1 2026

Most Active Threat Actors_H1

You may have heard your peers say, “Cybercrime has become industrialized.” But did you have any proof? 

We do. 

Cyble Research and Intelligence Labs (CRIL) closed out its tracking for the first half of 2026 with a deep analysis of the Global Threat Landscape spanning ransomware, initial access brokers, data breaches and leaks, nation-state espionage, and hacktivism, among others.  

One of the most striking analyses that puts the threat landscape severity in perspective was the number of distinct threat actor profiles active worldwide between January and June. 261 — that’s how many identifiable groups and individuals, each with its own tradecraft, targeting logic, and operational rhythm, running campaigns simultaneously across nation-state espionage, ransomware, hacktivism, and cybercrime.

What makes this data set valuable isn't just the headline count. It's what the composition reveals. A threat landscape dominated by nation-state APT groups tells a very different story than one dominated by ransomware crews — and as Cyble's regional breakdown shows, that composition shifts dramatically depending on where you're standing. 

The Worldwide Picture of Most Active Threat Actors: APTs Lead, But Not Everywhere 

Across all 261 profiles tracked globally, nation-state Advanced Persistent Threat (APT) groups were the single largest category — accounting for 118 profiles, or just over 45% of the total. Ransomware operators came second at 75 profiles (29%), followed by hacktivist collectives (34), cybercriminal groups (31), and dedicated extortion-only gangs, which remained a niche category at just 3. 

Threat Actor Category  Profiles Tracked  Share of Total 
Nation-State APT Groups  118  45.2% 
Ransomware Groups  75  28.7% 
Hacktivist Collectives  34  13.0% 
Cybercriminal Groups  31  11.9% 
Extortion-Only Groups  1.1% 
Total  261  100% 

That APT dominance reflects the sheer number of state-sponsored programs China, North Korea, Iran, and Russia field simultaneously across espionage, intellectual property theft, and pre-positioning operations.

The extortion-only category being almost statistically irrelevant is telling too — it confirms that pure extortion has essentially been absorbed into the ransomware business model rather than surviving as an independent specialty. Double extortion is now just how ransomware works. 

Worried your business is not immune to the tactics of these APT and ransomware groups? Book a demo to validate and fortify your defenses today! 

Threat Actors to Watch Out For 

CRIL flagged five groups worldwide as carrying the highest confidence and activity levels for security teams to track through the rest of 2026: 

Actor  Origin  Primary Targets  Sectors Targeted 
Bluenoroff  North Korea (Lazarus subgroup)  Global — cryptocurrency sector  Cryptocurrency, Financial Services 
UNC6508  China (PRC-nexus espionage)  US, Canada  Education, Healthcare, Government, Aerospace & Defense 
Volt Typhoon  China (state-sponsored)  US (incl. Guam) and allies  Communications, Energy, Manufacturing, Government, IT 
Desert Falcons  Palestine  UAE, Israel, Jordan, and 12+ other MEA nations  Aerospace & Defense, Government, Law Enforcement, Media 
SideCopy  Pakistan  India, Afghanistan  Government, Defense/military 

Two of these deserve particular attention for how they operate.  

Bluenoroff, a financially motivated Lazarus Group subgroup, funds North Korean state operations by impersonating established crypto investors and planting malicious links inside victims' Calendly scheduling accounts. This fraud vector blends social engineering with a tool most professionals trust implicitly.  

Volt Typhoon continues to favor "living off the land" techniques that blend into normal network activity, prioritizing long-term undetected access over rapid data theft — a profile consistent with pre-positioning for a future disruption event rather than opportunistic espionage. 

UNC6508 is worth flagging separately: the group compromises externally accessible REDCap research environments and has been observed creating malicious mail-forwarding rules to silently exfiltrate correspondence — all routed through US-based residential proxies and compromised routers specifically to obscure attribution. 

For a regional breakdown of which actors were the most active and which sectors they target, download Cyble Research and Intelligence Labs’ H1 2026 Global Threat Landscape Report. 
 
Download now! 

Track These Threat Actors in Real Time

The threat actor profiles, targeting patterns, and regional breakdowns in this analysis are drawn from Cyble's H1 2026 Global Threat Landscape Report, built on continuous monitoring across dark web forums, ransomware leak sites, and threat actor communications worldwide.  

Cyble Vision provides ongoing tracking of these groups — including new actor emergence, TTP shifts, and targeting changes — as they develop.  

Request a demo to see how continuous threat actor intelligence can sharpen your regional security priorities. 

The post APTs Top the List of Most Active Threat Actors in H1 2026 appeared first on Cyble.

Fairlife Ransomware Attack Hits Production Systems, U.S. Operations Suspended

Fairlife ransomware attack

The Fairlife ransomware attack has temporarily halted production operations at Coca-Cola-owned dairy company fairlife in the United States after unauthorized access was detected in a portion of its systems, including production-related systems. According to The Coca-Cola Company, fairlife identified unauthorized access by a third party in connection with a ransomware event. Following the discovery, the company activated its incident response and business continuity protocols while launching an investigation with the support of external advisors and cybersecurity experts. Law enforcement has also been notified. The company said the investigation is ongoing and that the full scope, nature, and impact of the incident are not yet known.

Fairlife Ransomware Attack Suspends U.S. Production

The Fairlife ransomware attack has resulted in the temporary suspension of production operations at fairlife facilities across the United States. However, the company stated that product quality and safety have not been affected by the incident. According to the company's statement, fairlife's production operations in Canada remain operational and have not been impacted by the ransomware event. The Coca-Cola Company also confirmed in a Form 8-K filing dated July 16, 2026, that fairlife detected the unauthorized access on Thursday. The filing reiterated that the company immediately activated its incident response procedures and business continuity protocols after identifying the intrusion. While the company continues to assess the incident, it said it has not yet determined whether the ransomware attack is reasonably likely to materially affect its business because the full impact remains unknown. The company added that it is working to complete its investigation and restore affected systems and production operations as quickly as possible.

Investigation Into Unauthorized Access Continues

The ongoing investigation is being conducted with assistance from outside cybersecurity experts. According to the company, the incident involved unauthorized access to a portion of fairlife's systems, including systems related to production. At this stage, The Coca-Cola Company has not disclosed how the attackers gained access, whether any data was compromised, or if a ransomware group has claimed responsibility for the attack. The company emphasized that its assessment is still underway and that additional details will be shared as more information becomes available.

Food and Beverage Sector Faces Growing Cybersecurity Risks

The food and beverage cyberattack trend has continued to affect manufacturers and logistics providers worldwide in recent months. On July 16, a cyberattack targeting Nichirei disrupted food deliveries across Japan after the frozen food and logistics provider confirmed unauthorized access to its servers. The incident affected logistics operations supporting KFC Japan, leading to temporary service disruptions while systems were being restored. Earlier this year, in February 2026, Australian poultry processor Hazeldenes also experienced a cybersecurity incident that disrupted production across its network. The Victoria-based company later announced it had begun a phased return to production to restore operations safely and securely while investigations continued. The latest incident involving fairlife adds another major food producer to the list of companies dealing with operational disruptions linked to cyber incidents. While production has been paused at fairlife's U.S. facilities, the company has maintained that product quality and safety remain unaffected and that its Canadian production continues without disruption. As the investigation progresses, The Coca-Cola Company said it remains focused on restoring impacted systems and resuming normal production operations. The company also noted that the complete scope and potential business impact of the incident have not yet been determined.

Vishing Call Becomes Key Lead in Massive Odido Cyberattack

Odido cyberattack

The investigation into the Odido cyberattack has uncovered possible involvement of Dutch nationals, according to Dutch police, as authorities continue to investigate the ShinyHunters ransomware-linked attack that exposed the personal data of approximately 6.39 million customers. Law enforcement has urged the public to come forward with information as investigators work to identify those responsible for one of the country's largest telecom data breaches.

The cyberattack took place on February 5 and 6 after attackers allegedly used voice phishing (vishing) to deceive Odido's customer service team.

According to the company, the attackers posed as members of its internal IT staff, gaining unauthorized access before exfiltrating customer data. Odido said its teams detected the unauthorized access immediately on both occasions and revoked the attackers' access, but the incident still resulted in a large-scale data breach.

Odido Cyberattack Investigation Finds Possible Dutch Link

Under the direction of the National Public Prosecution Service, the High Tech Crime Team (THTC) of the National Investigation and Intervention Unit launched an extensive investigation into the breach.

Authorities said investigators have found strong indications that Dutch criminals may have been involved. One key lead centers on a phone call made shortly before the breach in which a Dutch-speaking man allegedly impersonated an Odido IT employee while speaking with customer service representatives. Police are continuing efforts to identify the caller and have indicated that his voice could be made public if necessary.

Investigators believe people within cybercrime circles may have information about those responsible and are encouraging anyone with relevant details to contact law enforcement.

ShinyHunters Named as Threat Actor

Odido attributed the attack to the cybercriminal group ShinyHunters, which the company said carried out the social engineering campaign.

Chief Executive Officer Søren Abildgaard acknowledged the incident in a public statement, apologizing to customers and outlining the company's commitment to strengthening its cybersecurity capabilities. He said Odido would continue investing in security, improve data protection practices, expand customer support, and share lessons learned from the incident.

The CEO also explained why the company refused to pay the ransom demand. According to Odido, paying cybercriminals would reward illegal activity and could encourage future attacks against other Dutch organizations. The company said the decision was made following guidance from authorities, despite knowing that stolen data could eventually be published.

Millions of Customers Impacted

Odido confirmed that approximately 6.39 million active and former customers of Odido and its Ben brand were affected by the breach. Customers of Simpel were not impacted.

The exposed information varied by individual and included names, addresses, mobile phone numbers, customer numbers, email addresses, IBAN numbers, dates of birth, identification details, nationality, and gender.

The company clarified that My Odido account passwords, call records, location data, billing information, and scans of identity documents were not compromised.

Odido also addressed reports claiming customer passwords had been leaked, stating that login passwords remain securely encrypted and were never accessible during the attack. Instead, a separate telephone verification field known as "password_c," used as a customer challenge code, was included for a limited number of customers. The company has since discontinued using that verification method.

Customer Support and Security Measures Expanded

Following the breach, Odido increased customer support by adding more than 140 service agents and introduced additional security measures. These include its "Check je Gesprek" verification service, allowing customers to confirm whether communications claiming to be from Odido are legitimate, along with access to the F-Secure digital security service.

The telecom provider said all customers identified as affected have been notified by email or SMS, while customer service teams continue assisting users with questions related to their specific data exposure.

Meanwhile, Dutch authorities expect investigations into the Odido cyberattack to continue for several months. Police have also warned that cyberattacks targeting businesses and institutions are becoming increasingly common, urging organizations to strengthen cybersecurity defenses and encouraging citizens to remain vigilant against follow-on fraud and phishing attempts.

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