1. Overview The AhnLab SEcurity intelligence Center (ASEC) continuously monitors various threats targeting Linux environments. Techniques that modify the Linux kernel to conceal malware and signs of compromise have been used for a long time, and Syslogk is one such rootkit that operates in this manner. This document provides an analysis of the key features […]

The AhnLab SEcurity intelligence Center (ASEC) recently identified attack cases that exploited Radmin and UltraVNC. Although the Initial Intrusion method remains unknown, the attackers installed Radmin—a remote control tool—and then installed UltraVNC. The threat actors exploited the remote control tools to gain control of the infected systems and installed Netch and CCProxy to use the […]

ASEC Blog publishes Ransom & Dark Web Issues Week 1, September 2026           ZaWoo Data Extortion Attacks Against Multiple Organizations Worldwide Black X Ransomware Attack on a South Korean Automotive Parts Manufacturer Internal Data of a South Korean Asset Management and Investment Firm Offered for Sale

  People who initially seem fine but tend to subtly avoid others as the relationship deepens or when conflicts arise—and who disappear when pressured—are commonly referred to as “avoidant types.” By repeatedly pulling away only to reappear, they drain the other person’s emotions and energy, ultimately undermining the relationship. The attack pattern of the recently […]

A request to review the purchase of seafood ingredients arrived. When the file is opened, a normal hwp document appears, but while the user is reviewing the contents, a malicious script runs in the background and even registers a scheduled task. It then extracts system information to an external location, downloads and executes additional commands, […]

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks targeting entities in Korea using its own infrastructure. This report summarizes the classification, statistics, and functional characteristics for each type of domestic APT attacks identified during the month of July 2026. Trends of APT Attacks in South Korea Most APT attacks detected in South Korea were distributed […]

ASEC Blog publishes Ransom & Dark Web Issues Week 4, August2026           Saudi Arabian Digital Entertainment Streaming Service User Data Offered for Sale SAFEPAY Ransomware Attack on a South Korean Industrial Gas Manufacturer and Supplier NoName057(16) and BD Anonymous Claim DDoS Attacks Against Major Japanese Organizations and Companies [1] [2] [3] […]

Purpose and Scope The July 2026 Threat Trend Report on Ransomware summarizes major Korean & global ransomware issues based on statistics regarding the quantity of new ransomware samples, the number of compromised systems, and statistics on targeted businesses. Statistics on targeted businesses were compiled based on information published on DLS (Dedicated Leak Sites, also referred […]

Statistics on Malware Distributed to the Financial Sector In Attack Stage 1, phishing (a technique that tricks users into opening malicious links or attachments) had the highest rate at 1.7, Down from 2.3 The previous month. In Attack Stage 2, Dropper/Downloader (a type that downloads additional malware) was the most prevalent at 1.7, Up from […]

Content This report summarizes the distribution channels, number of Infostealers, number of detections, and target companies that were disguised as Infostealers collected during the month of July 2026. It was compiled based on results from AhnLab SEcurity intelligence Center (ASEC)’s automated data collection system, email honeypots, and automated C2 analysis, as well as diagnostic logs […]

Purpose and Scope The July 2026 Threat Trend Report on APT Groups summarizes the trend in which state-sponsored threat actors and financially motivated attackers are employing a combination of supply chain attacks, account takeovers, cloud breaches, and social engineering techniques. Key targets include Microsoft 365, webmail accounts, cloud infrastructure, GitHub and development environments, VPN and […]

ASEC Blog publishes Ransom & Dark Web Issues Week 3, August 2026         Customer and Operational Data of a South Korean Delivery Platform Offered for Sale Unauthorized Access Incident at a Japanese Cloud and Data Center Services Company ShinyHunters Threatens Data Disclosure Against a U.S. Live-Streaming Platform

The AhnLab SEcurity intelligence Center (ASEC) recently identified a phishing email campaign that disguised itself as a request to review a quote. The threat actor impersonated a sales team member at a specific overseas company and, by claiming that a previous quote needed to be revised and product versions verified, tricked recipients into opening the […]

The AhnLab SEcurity intelligence Center (ASEC) recently identified attack cases in which attackers targeted web servers in Korea to install SoftEther VPN. Attack cases involving the installation of SoftEther VPN, an open-source VPN, were previously discussed in the 2024 ASEC blog post titled “Analysis of Attack Cases Targeting ERP Servers in Korea to Install SoftEther […]

Recently, the AhnLab SEcurity intelligence Center (ASEC) identified instances of phishing emails that were disguised as transaction receipts. The emails impersonated employees of a specific US company. The body of the message stated that a transaction receipt was attached and asked the recipient to review it and confirm whether funds had been deposited into their […]

ASEC Blog publishes Ransom & Dark Web Issues Week 2, August 2026.           DragonForce Ransomware Attack on a South Korean Online Education Company Qilin Ransomware Attack on a South Korean Motor and Robotics Manufacturer ShinyHunters Claims Data Leak from a U.S. Digital Healthcare Company

Note The July 2026 Dark Web Breach Incident Trend Report was compiled based on data breach cases posted on deep web and dark web forums. Due to the nature of some posts, it is difficult to fully verify their accuracy; some posts related to South Korea included AI-generated false data or cases where it could […]

Note The July 2026 Dark Web Threat Actor Trend Report focuses on trends among threat actors—including hacktivists—active on the deep web and dark web. It is explicitly noted that the factual accuracy of some content could not be verified. Major Issues Handala claimed to have compromised the core infrastructure of an Internet service provider in […]

Note The July 2026 Dark Web Issue Trend Report summarizes major issues that occurred on the deep web and dark web. Due to the nature of some sources, it may be difficult to fully verify the accuracy of certain information; therefore, it is necessary to cross-check these details against official announcements. Major Issues RaidForums changed […]

ASEC Blog publishes Ransom & Dark Web Issues Week 1, August 2026           South Korean Automotive Parts Manufacturer’s Internal Server Access and Database Offered for Sale Data of a Turkish HR Consulting Company Offered for Sale Gunra Ransomware Attack on a South Korean Heavy Equipment Parts and Advanced Materials Manufacturer