Analysis of ShadowPad Attack Exploiting WSUS Remote Code Execution Vulnerability (CVE-2025-59287)

Analysis of ShadowPad Attack Exploiting WSUS Remote Code Execution Vulnerability (CVE-2025-59287)

1. Overview AhnLab SEcurity intelligence Center (ASEC) has identified an attack where the remote code execution vulnerability in Microsoft Windows Server Update Services (WSUS), tracked as CVE-2025-59287, was exploited to distribute the ShadowPad malware. ShadowPad is a backdoor malware used by numerous Chinese APT groups. First discovered in 2017, its

October 2025 APT Attack Trends Report (South Korea)

October 2025 APT Attack Trends Report (South Korea)

Overview   AhnLab is monitoring Advanced Persistent Threat (APT) attacks in South Korea by utilizing their own infrastructure. This report covers the classification, statistics, and features of APT attacks in South Korea that were identified in October 2025. Figure 1. Statistics of APT attacks in South Korea in October 2025

October 2025 APT Group Trends

October 2025 APT Group Trends

Trends of Key APT Groups by Region   1)   North Korea North Korea-affiliated cyber threat groups have stolen cryptocurrency, credentials, and performed reconnaissance and remote control attacks through various malware and operations. They used Node.js-based malware and a multi-stage infection chain to target both Windows and macOS environments. Through their

September 2025 APT Group Trends

September 2025 APT Group Trends

Trends of Key APT Groups by Region   1)   North Korea   North Korea-linked APT groups have been intensively carrying out advanced spear-phishing and remote access attacks against the defense, military, and cryptocurrency sectors in South Korea. They have also introduced a new psychological deception technique using generative AI and

September 2025 APT Attack Trends Report (South Korea)

September 2025 APT Attack Trends Report (South Korea)

Overview   Ahnlabs is monitoring APT (Advanced Persistent Threat) attacks in South Korea by utilizing their own infrastructure. This report covers the classification, statistics, and features of APT attacks in South Korea that were identified in September 2025. Figure 1. Statistics of APT attacks in September 2025 In Korea, most

Larva-25010 –  Analysis on the APT Down Threat Actor’s PC

Larva-25010 – Analysis on the APT Down Threat Actor’s PC

This report covers the seven posts on the breach analysis of APT Down, which were published in “Threat Notes” of AhnLab TIP after the release of the “APT Down: the North Korea Files” report, along with additional analysis.   Post on Aug 12, 2025, “APT DOWN – Analysis of Korean

August 2025 Threat Trend Report on APT Attacks (South Korea)

August 2025 Threat Trend Report on APT Attacks (South Korea)

Overview AhnLab has been using AhnLab Smart Defense (ASD) to monitor advanced persistent threat (APT) attacks against targets in Korea. This report covers the categorization and statistics of APT attacks in South Korea during August 2025 as well as functions for each type. Figure 1. August 2025 statistics on APT

August 2025 Threat Trend Report on APT Groups

August 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

July 2025 Major APT Group Trends

July 2025 Major APT Group Trends

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

July 2025 APT Attack Trends Report (South Korea)

July 2025 APT Attack Trends Report (South Korea)

Overview   AhnLab has been using AhnLab Smart Defense (ASD) to monitor advanced persistent threat (APT) attacks against targets in Korea. This report will cover the types and statistics of APT attacks in Korea during July 2025 as well as features for each type. Figure 1. July 2025 statistics on