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

File encryption patterns

LeChiffre modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.lechiffre.QLZWVR_LeChiffre

Ransom note and payment demands

After encrypting files, LeChiffre displays ransom notes demanding payment for file recovery:

file/^_how to decode\[?\w+\]?\.txt\b/
notes/_how to decode[VIVASBSSERVER].txt
fileQLZWVR_LeChiffre_ReadMe.txt
notes/QLZWVR_LeChiffre_ReadMe.txt

About this analysis

This LeChiffre ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like LeChiffre.

Last updated: December 30, 2025

Detection coverage

Elastio detects LeChiffre inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify LeChiffre across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.

See How the Hunt Engine WorksRequest a Demo

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