Overview AhnLab SEcurity intelligence Center (ASEC) recently identified a change in the Kimsuky group’s method of distributing malicious LNK files. The overall attack flow remains the same as before, with a malicious LNK ultimately executing a Python-based backdoor or downloader. However, a structural change was observed in the intermediate execution phase.   Category Previous Distribution […]

AhnLab SEcurity intelligence Center (ASEC) has confirmed that the Larva-26002 threat actor continues to target improperly managed MS-SQL servers in 2026. The Larva-26002 threat actor has distributed Trigona and Mimic ransomware in the past, and has since seized control of infected systems and installed scanners. The latest confirmed attack utilizes the ICE Cloud Client, a […]

Overview   AhnLab utilizes its infrastructure to monitor for Advanced Persistent Threat (APT) attacks in South Korea. This report covers the classification and statistics on APT attacks on South Korea targets identified during the month of February 2026, and introduces the features of each type.  Figure 1. Statistics on APT attacks in Korea in February […]

Distribution Method – SEO Poisoning Typically, people perceive the sites that appear at the top of Google search results as the “most authoritative and official” sites. however, threat actors are playing on the psychology of such users, manipulating the search engine’s algorithms to place malicious sites at the top. SEO poisoning is an attack technique […]

Key APT Groups   Among the activities of APT groups in February 2026, attacks by APT28, Lotus Blossom, TA-RedAnt (APT37), UAT-8616, UNC3886, and UNC6201 were particularly prominent.   Lotus Blossom exploited the Notepad++ supply chain infrastructure to inject malicious executables into legitimate update processes, combining DLL sideloading with multi-stage loaders to deploy the Chrysalis backdoor […]

This report provides statistics, trends, and case information regarding the no. of malware distribution cases, distribution methods, and disguise techniques for Infostealer collected and analyzed during the month of February 2026. Below is a summary of the report’s original content.   1) Data Sources and Collection Methods  AhnLab SEcurity intelligence Center (ASEC) operates various systems […]

This report comprehensively covers actual cyber threats and related security issues targeting financial institutions in South Korea and abroad. It includes analysis of malware and phishing cases distributed targeting the financial sector, presents the Top 10 major malware targeting the financial sector, and provides statistics on the industry sectors of South Korean accounts leaked via […]