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Lyceum, also known as Siamese Kitten and tracked in some reporting as Yellow Dev 9, is an Iran-based espionage threat actor. The group has been associated with campaigns targeting the telecommunications and aviation sectors in Africa, with operations relying heavily on social engineering, including outreach over LinkedIn and recruitment-themed lures impersonating information technology companies. Lyceum has used custom malware, including the Milan and Shark backdoors, and has operated command-and-control over both HTTP and DNS channels. The actor’s tradecraft is consistent with targeted cyber espionage focused on gaining access to organizations of strategic interest, maintaining footholds, and conducting post-compromise collection and exfiltration.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Attributed origin per open-source reporting.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.