Ransomware group profile · #305 by claimed victims
Crosslock ransomware
CrossLock is a short-lived Go-based ransomware group that appeared in April 2023 and went dark by July 2023, using Curve25519 and ChaCha20 encryption and double-extortion tactics with only one known confirmed victim in the IT sector in Brazil.
Victimology
Who Crosslock claims to have breached, from 1 leak-site posts recorded by VULONE.
Claims per month last 12 months
Top sectors
Top countries
Latest claimed victims 1 most recent
| Victim | Sector | Country | Claimed |
|---|---|---|---|
| validcertificadora.com.br validcertificadora.com.br | Agriculture and Food Production | BR | 17 Apr 2023 |
All 1 Crosslock victims, searchable
Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.
Tactics, techniques and procedures
ATT&CK technique mapping for Crosslock 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 Crosslock ransomware still active?
How many victims has Crosslock claimed?
Which industries does Crosslock target?
Which countries are most affected by Crosslock?
Where does VULONE get Crosslock victim data?
Other ransomware groups
Qilin
Lockbit3
Akira
ClopVictim 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].
