Case of Larva-25004 Group (Related to Kimsuky) Exploiting Additional Certificate – Malware Signed with Nexaweb Certificate
AhnLab SEcurity intelligence Center (ASEC) has discovered malware signed with the certification of Nexaweb Inc. by investigating a file with the same characteristics as the one signed with a Korean company’s certificate. These malware samples have been reported by other security companies about the activities of the Kimsuky group.
April 2025 APT Group Trends
Trends of major APT groups by country 1) North Korea Since November 2024, the North Korean APT group has been exploiting the vulnerability of South Korean Internet financial security software. Similar attacks have been carried out in the past, and the threat actors have been launching attacks
April 2025 Threat Trend Report on APT Attacks (South Korea)
Overview AhnLab is monitoring Advanced Persistent Threat (APT) attacks in South Korea using its own infrastructure. This report covers the classification, statistics, and functions of APT attacks detected in South Korea over the course of one month in April 2025. Figure 1. Statistics of APT attacks in South
Distribution of PebbleDash Malware in March 2025
PebbleDash is a backdoor malware that was previously identified by the Cybersecurity and Infrastructure Security Agency (CISA) in the U.S. as a backdoor malware of Lazarus (Hidden Corba) in 2020. At the time, it was known as the malware of the Lazarus group, but recently, there have been more cases
ATIP_March 2025_Threat Trend Report on APT Groups
Purpose and Scope This report covers nation-led threat groups, presumed to conduct cyber espionage or sabotage supported by certain governments. These groups are referred to as advanced persistent threat (APT) groups for the sake of convenience. Therefore, this report does not contain information on cybercriminal groups aiming to gain financial
APT Group Profiles – Larva-24005
1) Introduction During the breach investigation process, the AhnLab SEcurity intelligence Center (ASEC) discovered a new operation related to the Kimsuky group and named it Larva-24005.1 The threat actors exploited the RDP vulnerability to infiltrate the system. They then changed the system configuration by installing the MySpy
March 2025 APT Group Trends (South Korea)
Overview AhnLab is monitoring Advanced Persistent Threat (APT) attacks in South Korea using its own infrastructure. This report covers the classification, statistics, and features of the APT attacks in South Korea that were identified in March 2025, as well as the attack types. Figure 1. Statistics of
BeaverTail and Tropidoor Malware Distributed via Recruitment Emails
On November 29, 2024, a case was disclosed in which threat actors impersonated a recruitment email from a developer community called Dev.to to distribute malware. [1] In this case, the attacker provided a BitBucket link containing a project, and the victim discovered malicious code within the project and disclosed it
February 2025 APT Group Trends (South Korea)
Overview AhnLab is monitoring Advanced Persistent Threat (APT) attacks in South Korea using its own infrastructure. This report covers the classification, statistics, and features of the APT attacks in South Korea that were identified in February 2025, as well as the attack types. Figure 1. Statistics of APT
Analysis of Lazarus Group’s Attack on Windows Web Servers
AhnLab SEcurity intelligence Center (ASEC) has identified attack cases of the Lazarus group breaching a normal server and using it as a C2. Attacks that install a web shell and C2 script on South Korean web servers continue to occur. Additionally, there are cases where LazarLoader malware and privilege escalation
