Ransomware Research
LeChiffre Ransomware
LeChiffre is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2015, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- LeChiffre
- First Seen
- June 1, 2015
How LeChiffre Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
LeChiffre modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lechiffre..QLZWVR_LeChiffreRansom Note and Payment Demands
After encrypting files, LeChiffre displays ransom notes demanding payment for file recovery:
/^_how to decode\[?\w+\]?\.txt\b/Ransom message:
notes/_how to decode[VIVASBSSERVER].txt
QLZWVR_LeChiffre_ReadMe.txtRansom message:
notes/QLZWVR_LeChiffre_ReadMe.txt
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About This Analysis
This LeChiffre 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 LeChiffre.
Last updated: July 30, 2025