Crysis ransomware group
Crysis 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
Crysis ransomware was first identified in early 2016 and is a long-running family that later evolved into the Dharma ransomware line. It follows a Ransomware-as-a-Service (RaaS) model, allowing affiliates to customize email addresses, extensions, and ransom notes. Crysis primarily spreads via malicious email attachments, remote desktop protocol (RDP) brute-force attacks, and software cracks. It uses strong hybrid encryption—AES for file content and RSA for key protection—and appends various extensions such as .crySis, .wallet, or attacker-specified tags. It also deletes shadow copies to hinder recovery. Over the years, it has targeted businesses and individuals worldwide, with notable prevalence in healthcare, manufacturing, and professional services sectors. In 2017, law enforcement released master decryption keys through the NoMoreRansom project, enabling recovery for earlier versions, though newer builds remain active in the wild.
Current status
Crysis'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 Crysis 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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