North Korea’s UNC5342 APT Uses EtherHiding to Store Malware in Blockchain Smart Contracts for Stealthy C2 Cyber Security Malware North Korea’s UNC5342 APT Uses EtherHiding to Store Malware in Blockchain Smart Contracts for Stealthy C2 Do Son October 20, 2025 0 Google Threat Intelligence Group (GTIG) has uncovered a new campaign by the North Korean threat actor UNC5342,... Read More Read more about North Korea’s UNC5342 APT Uses EtherHiding to Store Malware in Blockchain Smart Contracts for Stealthy C2