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Ransomware Research
Crysis XTBL Ransomware
Crysis XTBL is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Crysis XTBL
- First Seen
- June 1, 2016
How Crysis XTBL Ransomware Works
Targeted Files
Full extension -> .centurion_legion@aol.com.xtbl
File Encryption Patterns
Crysis XTBL modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..xtbl
Ransom Note and Payment Demands
After encrypting files, Crysis XTBL displays ransom notes demanding payment for file recovery:
How to decrypt your files.txt
Decryption instructions.txt
Ransom message:
notes/Decryption instructions.txt
Note locations:
Desktop
StartUp
Ransom message:
notes/How-to-decrypt-your-files.jpg
Note locations:
Desktop
Ransom message:
notes/Decryption instructions.jpg
Note locations:
Desktop
Elastio Can Help You
Don't let Crysis XTBL ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Crysis XTBL ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Crysis XTBL.
Last updated: July 30, 2025