Content 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 September 2026. Purpose and Scope The report outlines the distribution methods and execution types of APT attacks identified […]

Purpose and Scope APT cases disclosed in September 2026 demonstrate that attacks have evolved to exploit the developer ecosystem, cloud services, and network management infrastructure as trust layers. Legitimate software installers, GitHub repositories, Microsoft 365, OneDrive, Telegram, Nostr, routers, and authentication servers were all included in the attack chain. Key Trends Supply chain attacks have […]

1. Overview  AhnLab SEcurity intelligence Center (ASEC) recently identified a case in which the Kimsuky group ultimately distributed the Funhouse ransomware via a malicious Hangul document that was disguised as a resume. The Funhouse ransomware was identified as a variant of previously disclosed endpoint ransomware, and the tools used in this attack—such as Quasar RAT—as […]

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks targeting entities in Korea using its own infrastructure. This report summarizes the types and statistics on domestic APT attacks identified during the month of August 2026. Trends of APT Attacks in South Korea Most of the APT attacks detected in South Korea were distributed via spear phishing […]

Purpose and Scope The August 2026 APT Threat Trends report summarizes attack cases in which state-sponsored threat actors combined attacks involving open-source supply chain compromises, the use of generative AI, the exploitation of legitimate cloud services, job scams, and the exploitation of zero-day vulnerabilities. A key finding is the use of GitHub, GitLab, OneDrive, Telegram, […]

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 […]

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 […]

Content AhnLab monitored domestic APT (Advanced Persistent Threat) attacks—attacks that are conducted covertly and persistently—using its own infrastructure. This report summarizes the classification and statistics on domestic APT attacks identified in June 2026 and describes the capabilities of each type of APT attack. Purpose and Scope Most of the APT attacks identified in Korea were […]

Purpose and Scope The June 2026 Threat Trend Report on APT Groups summarizes the trend of state-sponsored threat groups actively incorporating generative AI, cloud services, OAuth tokens, and commercial MaaS (Malware-as-a-Service) platforms into their attack operations. A key finding is that the scope of attacks has expanded beyond traditional Malware infections to include account and […]

Note The June 2026 Dark Web Breach Incident Trend Report is based on major data breach cases posted on the deep web and dark web forums. Due to the nature of some sources, it was difficult to fully verify the accuracy of certain information, so the report includes content that requires further verification. Major Issue […]

Overview AhnLab monitored APT (Advanced Persistent Threat) attacks—covert, sustained targeted attacks—using its own infrastructure. This report summarizes the types and statistics on domestic APT attacks identified during the month of May 2026 and discusses the characteristics of each type as well as AhnLab Response Overview. Trends of APT Attacks in South Korea Most of the […]

Purpose and Scope The May 2026 APT Trends report identified supply chain attacks, developer environment attacks, automated Initial Breach, and exploitation of runtime environments as key developments. Lazarus, Famous Chollima, Gamaredon, MuddyWater, and Nimbus Manticore are of particular concern. Status of Major APT Groups by Region North Korea The Lazarus group exploited Git Hooks (Git […]

Overview ahnLab utilized its infrastructure to monitor Advanced Persistent Threat (APT) attacks on targets in Korea. this report summarizes the classification, statistics, and features of each type of APT attacks identified in Korea during the month of April 2026. Trends of APT Attacks in South Korea most of the APT attacks identified in Korea were […]