Mobile Security & Malware Issue 3st Week of August, 2025
ASEC Blog publishes “Mobile Security & Malware Issue 3st Week of August, 2025”
Underground Ransomware Targeting Korean Companies
The Underground ransomware gang is launching continuous ransomware attacks against companies in various countries and industries, including South Korea. This post describes the analysis and characteristics of the Underground ransomware. 1. Overview 1.1 Team Underground The ransomware strain operated by the group known as Underground was first identified in
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
