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DEV-0289 is a ransomware-as-a-service affiliate associated with the DarkSide ecosystem. The actor is best known for conducting a major DarkSide deployment that was attributed to an affiliate rather than to the DarkSide operator ELBRUS/FIN7 itself. This illustrates the division of labor common in human-operated ransomware operations, where core operators maintain the ransomware platform while affiliates perform intrusion, privilege escalation, lateral movement, and deployment inside victim environments. High-confidence public reporting directly ties DEV-0289 to DarkSide affiliate activity, but does not provide a broader independently corroborated profile of its infrastructure, geography, victimology, or full tooling set. DEV-0289 is therefore best characterized as a financially motivated cybercriminal affiliate operating within the DarkSide ransomware ecosystem and participating in hands-on intrusion activity that culminates in ransomware deployment.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
1 malware family attributed to this actor across reporting.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.