MicrosoftSystem64 is a malware family tracked across 1 threat cluster and 2 intelligence report mentions on ThreatCluster. First observed May 29, 2026; most recent activity May 29, 2026.
A sophisticated malware named MicrosoftSystem64 has been identified, leveraging Hugging Face datasets for data exfiltration. This malware, which masquerades as a legitimate Microsoft process, has been active since early…