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UNC3707 is a cyber-espionage threat actor also referred to as GreenCube. It has been observed targeting email and webmail solutions, including Roundcube, in campaigns focused on gaining access to communications and mailbox data. The actor is associated with operations against email infrastructure rather than ransomware or disruptive activity. Based on available reporting, UNC3707 is notable for targeting messaging platforms used by organizations of intelligence interest, consistent with credential theft and data collection objectives. High-confidence public detail in the available material is limited beyond its aliasing and its involvement in campaigns against email solutions.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
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.