Ransomware Research
Lilocked Ransomware
Lilocked is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: LILU.
Quick Facts
- Ransomware Family
- Lilocked
- First Seen
- July 1, 2019
- Known Aliases
- LILU
How Lilocked Ransomware Works
Targeted Files
for Linux OS Requires for parameters (-a -> all files -k <32 bytes key>)
File Encryption Patterns
Lilocked modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lilockedRansom Note and Payment Demands
After encrypting files, Lilocked displays ransom notes demanding payment for file recovery:
#README.lilockedRansom message:
notes/#README.lilocked
Technical Indicators
Associated Executable Files
The following executable files are associated with Lilocked ransomware:
unlocker0
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About This Analysis
This Lilocked 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 Lilocked.
Last updated: July 30, 2025