Ransomware group profile · #500 by claimed victims
Killsec3 ransomware
Killsec3 is a ransomware operation tracked by VULONE since September 2026.
Tactics, techniques and procedures
ATT&CK technique mapping for Killsec3 is in progress. Victimology, infrastructure status and leak-site tracking are live above.
Indicators, detections and the full playbook
Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.
Frequently asked
Is Killsec3 ransomware still active?
How many victims has Killsec3 claimed?
Which industries does Killsec3 target?
Which countries are most affected by Killsec3?
Where does VULONE get Killsec3 victim data?
Other ransomware groups
Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].