C3rb3r ransomware group
C3rb3r is one of the extortion operations we watch continuously. This page covers what is known about the group and the current state of its leak site, which we last saw change 1y ago.
Who they are
Cerber ransomware, active since 2016, has resurfaced occasionally using the name C3RB3R. It operates as a semi-private Ransomware-as-a-Service (RaaS) and targets both Windows and Linux environments. Cerber typically uses AES + RSA cryptographic methods and appends the .L0CK3D extension to encrypted files. It executes operations via phishing, malicious macros, and has even leveraged vulnerabilities such as Atlassian Confluence’s CVE-2023-22518 for deployment. Victims are directed to Tor-hosted payment portals for decryption instructions.
Current status
C3rb3r's leak site is not answering. Sites go dark for infrastructure trouble, a deliberate quiet period, or a takedown, and a good number return weeks later under the same name, so the entry stays on the list either way.
The last change we recorded on it was 1y ago (29 Aug 2025 08:13 UTC).
Which organisations this group has named, and when, is part of the SINON platform rather than this page. Create an account to search it, or to be told automatically if a name you care about turns up.
Sectors targeted
This group does not state an industry on its site, so we have nothing reliable to report. Most crews are opportunistic rather than sector-specific in any case — they hit what they can reach.
Watching for your name
If C3rb3r posts your company, a supplier or a subsidiary, you want to hear it from us rather than from a journalist. SINON checks these sites continuously and alerts on the names you give it.
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