LonleyCrypt Ransomware
LonleyCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick facts
How LonleyCrypt ransomware works
File encryption patterns
LonleyCrypt modifies encrypted files using specific patterns to mark them as encrypted:
About this analysis
This LonleyCrypt 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 LonleyCrypt.
Last updated: December 30, 2025
Elastio detects LonleyCrypt inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify LonleyCrypt 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.
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