Ransomware group profile · #280 by claimed victims
Ragnarok ransomware
According to Bleeping Computer, the ransomware is used in targeted attacks against unpatched Citrix servers. It excludes Russian and Chinese targets using the system's Language ID for filtering. It also tries to disable Windows Defender and has a number of UNIX filepath references in its strings. Encryption method is AES using a dynamically generated key, then bundling this key up via RSA.
Victimology
Who Ragnarok claims to have breached, from 3 leak-site posts recorded by VULONE.
Claims per month last 12 months
Top sectors
Top countries
Latest claimed victims 3 most recent
| Victim | Sector | Country | Claimed |
|---|---|---|---|
| FNBNWFL Data leaked | Financial Services | — | 30 Dec 2021 |
| Decrypt | Technology | — | 9 Sep 2021 |
| Boggi Milano | Retail & E-Commerce | — | 31 Mar 2021 |
All 3 Ragnarok 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 Ragnarok 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 Ragnarok ransomware still active?
How many victims has Ragnarok claimed?
Which industries does Ragnarok target?
Which countries are most affected by Ragnarok?
Where does VULONE get Ragnarok 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].