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Q3 2026 Statistical Report on Malware Targeting Windows Web Servers

Content The AhnLab SEcurity intelligence Center (ASEC) analyzed the attack status of Windows web servers in the third quarter of 2026 based on AhnLab Smart Defense (ASD) logs. The targets were Internet Information Services (IIS) web servers and Apache Tomcat web servers running in Windows environments, with attacks primarily exploiting unpatched vulnerabilities, misconfigurations, and inadequate […]

Vulnerability Attack Case: Installation of a Web Shell and Execution of a Scanner by Exploiting a Telerik UI Vulnerability

The AhnLab SEcurity intelligence Center (ASEC) has identified two vulnerability attack cases that exploited a remote code execution vulnerability (CVE-2019-18935) targeting unpatched Telerik UI for ASP.NET AJAX servers. In the first incident, after exploiting the vulnerability, the attacker executed a reverse shell, attempted to perform privilege escalation, and installed a web shell; in the second […]

Case Study: Targeted Attack Case on an MS-SQL Server Involving the Installation of GotoHTTP and SoftEther VPN

While monitoring attack cases targeting MS-SQL servers, the AhnLab SEcurity intelligence Center (ASEC) identified an instance in which the Larva-26009 threat actor installed the XMRig CoinMiner. While the installation of CoinMiner is common in attack cases targeting MS-SQL servers, in this particular attack case, the attacker installed VShell and GotoHTTP to gain control over the […]

Statistical Report on Malware Targeting Windows Database Servers in Q2 2026

Contents The AhnLab SEcurity intelligence Center (ASEC) analyzed attack logs from the second quarter of 2026 targeting MS-SQL server and MySQL server installations on Windows. This report summarizes the damage status, attack status, and the classification of the malware and tools used in the attacks. Purpose and Scope The targets are MS-SQL servers and MySQL […]

Statistical Report on Malware Targeting Windows Web Servers in Q2 2026

Content In the second quarter of 2026, the AhnLab SEcurity intelligence Center (ASEC) compiled an analysis of the current attack status for poorly managed Windows web servers and classified the malware used in these attacks. The targets were Internet Information Services (IIS) web servers and Apache Tomcat web servers running in Windows environments. Purpose and […]
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