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Tsastsin is a threat actor name associated with a malware campaign active around late 2005 to early 2006 that was described as targeting Windows systems broadly and at global scale. Available high-confidence reporting indicates the malware exploited weaknesses in Windows environments during a period when remotely controlled and updateable bot malware was becoming common, and when defensive coverage was initially lacking. Beyond the association with a large-scale Windows-focused malware operation, reliable public detail on Tsastsin’s organizational structure, nationality, aliases, victimology, tooling lineage, or broader campaign history is currently not available.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
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