Analysis of the Connection Between Xctdoor and Past CRAT Attack Cases (Larva-26005)
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
Attack Cases by the Kimsuky Group Impersonating Diplomats (PebbleDash, PrxClient)
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
Case Study: Distribution of a CoinMiner Targeting Linux SSH Servers via Malware Distribution via Network Transmission
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
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
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
Statistics Report on Malware Targeting Windows Database Servers in Q1 2026
Description. analysis of ASEC’s ASD logs for Q1 2026 showed a consistent trend of attacks against MS-SQL and MySQL. the number of attacks tended to decrease temporarily in February before increasing again in March. Purpose and Scope. this report summarizes the statistics of attacks targeting MS-SQL and MySQL servers installed
Statistical Report on Malware Targeting Windows Web Servers in Q1 2026
Description. AhnLab SEcurity intelligence Center (ASEC) analyzed the attack status and malware statistics of Windows web servers in the first quarter of 2026 based on AhnLab Smart Defense (ASD) logs. the analysis covers Internet Information Services (IIS) and Apache Tomcat web servers in Windows environments. command execution through the web
Proxyware Disguised as Notepad++ Tool
AhnLab SEcurity intelligence Center(ASEC) is monitoring Proxyjacking attacks and continuously disclosing distribution cases and IoCs identified in South Korea. The threat actor Larva‑25012, known for deploying Proxyware, has recently begun using malware disguised as a Notepad++ installer. In addition, the attacker is actively changing techniques to evade detection—such as injecting
RMM Tools (Syncro, SuperOps, NinjaOne, etc.) Being Distributed Disguised as Video Files
AhnLab SEcurity intelligence Center (ASEC) recently discovered cases of attacks using RMM tools such as Syncro, SuperOps, NinjaOne, and ScreenConnect. Threat actors distributed a PDF file that prompted users to download and run the RMM tool from a disguised distribution page such as Google Drive. The certificate used to sign
Statistics Report on Malware Targeting Windows Web Servers in Q4 2025
AhnLab SEcurity intelligence Center (ASEC) is using the AhnLab Smart Defense (ASD) infrastructure to respond to and categorize attacks targeting poorly managed Windows web servers. This post will cover the damage status of Windows web servers that have become attack targets and the statistics of attacks that occurred against these
