Contents The AhnLab SEcurity intelligence Center (ASEC) collected attack logs targeting poorly managed Linux SSH servers through honeypots. This report compiles statistics by categorizing the attack sources identified in the third quarter of 2026, the attacks carried out from those sources, and the malware used. The report also provides a classification of the malware used […]

Content The AhnLab SEcurity intelligence Center (ASEC) observed and classified attacks targeting MS-SQL servers and MySQL servers installed on Windows operating systems via the ASD infrastructure. This report summarizes the damage status, attack status, and the types of malware used in the attacks, based on logs identified in the third quarter of 2026. Purpose and […]

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 […]

In January 2026, the AhnLab SEcurity intelligence Center (ASEC) reported on attack cases that distributed RMM (Remote Monitoring and Management) tools through video files or attachments in phishing emails. [1] [2] In these attack cases, tools such as Syncro, ConnectWise ScreenConnect, NinjaOne, and SuperOps were exploited. RMM (Remote Monitoring and Management) tools are not malware […]

1. Overview AhnLab SEcurity intelligence Center (ASEC) recently confirmed that the Larva-26005 threat actor is distributing Xctdoor to users in Korea. Xctdoor was disclosed through the ASEC blog in 2024, and [1] In March 2026, Hauri disclosed an attack case in which the malware was disguised as an integrated security program. [2]   While analyzing […]

AhnLab SEcurity intelligence Center (ASEC) previously disclosed an attack case in which the Kimsuky group used spear phishing attacks to install the PebbleDash malware in a post titled “Analysis of the Kimsuky Group’s Latest Attacks Exploiting PebbleDash and RDP Wrapper” [1]. The same threat actors have continued their activities in 2026 and have recently been […]

The AhnLab SEcurity intelligence Center (ASEC) is monitoring attacks targeting poorly managed Linux servers using multiple honeypots. Recently, ASEC identified cases where malware with propagation capabilities was used to install the XMRig CoinMiner.   In these attack cases, malware such as ShellBot, MIG LogCleaner, and XHide were used. The threat actors created and used downloaders […]

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 […]

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 […]