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LummaC2 is a criminal infostealer service used to steal data from compromised systems and support downstream cybercrime. It has been operated as a service-based malware offering and has been relied upon by multiple criminal groups. Publicly reported disruption activity in 2025 showed that U.S. authorities, working with Microsoft and other security partners, seized key infrastructure used to control LummaC2 user panels and removed large numbers of malicious domains associated with the service. The operation significantly degraded the service and disrupted dependent criminal activity. Based on the available facts, LummaC2 is best characterized as a financially motivated cybercrime operation centered on information theft and data exfiltration.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
4 distinct techniques 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.
Match sector + geo + tech-stack targeting against your real footprint.
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.