July 2026 Threat Trend Report on APT Groups
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
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
![[Joint Cybersecurity Advisory] Operation Double Barrel (The Relationship Between a State-Sponsored Threat Actor and the Gunra Ransomware Group)](https://asec.ahnlab.com/wp-content/uploads/2026/07/3UldpOr2FtkFXLKiyukxTR2XcxLgvaZoG5QaUPP8.webp)
[Joint Cybersecurity Advisory] Operation Double Barrel (The Relationship Between a State-Sponsored Threat Actor and the Gunra Ransomware Group)
This technical analysis report was prepared as part of the joint cybersecurity advisory titled “Advisory on Cyberattacks Targeting Korean Citizens and Businesses by State-Sponsored Hacking Groups” issued by the Republic of Korea’s National Intelligence Service (NIS), National Police Agency (NPA), Korea Internet & Security Agency (KISA), and Financial Security Institute
Not Every Fox is Silver: Inside an AtlasRAT loader chain
Summary AtlasRAT is a Windows-based remote access malware. This report analyzes a four-stage in-memory loader chain—which begins with a Delphi executable that is disguised as AGE Flash Player—and its final RAT functionality. The final payload performs TLS-based ChaCha20-encrypted C2 communication, executes modular plugins, performs offline keylogging, and injects DLLs into
June 2026 Threat Trend Report on APT Attacks (South Korea)
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
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
June 2026 Threat Trend Report on APT Groups
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
May 2026 Threat Trend Report on APT Attacks (South Korea)
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
May 2026 Threat Trend Report on APT Groups
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
April 2026 Threat Trend Report on APT Attacks (South Korea)
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
