Blackberserk ransomware group
Blackberserk 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.
Who they are
Black Berserk is a relatively unsophisticated ransomware strain analyzed in late 2023. It operates under a single‑extortion model—encrypting files and demanding payment, with no documented abilities or threats for data exfiltration or public leaks. In observed cases, the malware appends the .Black extension to encrypted files (e.g., 1.jpg.Black) and leaves a ransom note titled Black_Recover.txt, which urges victims to make contact to negotiate payment or test decryption with benign files. The infection method appears opportunistic, delivered via isolated incidents or broad malware distribution—not linked to targeted campaigns or infrastructure. There is no evidence of it functioning as a RaaS operation or targeting any specific victim profiles or sectors.
Current status
Blackberserk'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.
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 Blackberserk 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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