Russian Military Cyber Actors Target US and Global Critical Infrastructure

This joint FBI/CISA/NSA advisory attributes extensive cyber operations to Russian GRU Unit 29155 (Unit 29155 cyber component), describing reconnaissance, exploitation of internet-facing systems, lateral movement, data exfiltration, and deployment of destructive WhisperGate malware (two-stage MBR-corrupting payloads) against Ukrainian and other international targets; it includes detailed TTPs mapped to MITRE ATT&CK, malware static/behavioral analysis, IOCs (IP addresses, file hashes, domains), and prioritized mitigation guidance.