Ransomware Research
RenLocker Ransomware
RenLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Crypter.
Quick Facts
- Ransomware Family
- RenLocker
- First Seen
- November 1, 2016
- Known Aliases
- Crypter
How RenLocker Ransomware Works
Targeted Files
Name should be dll.exe Only renames files
File Encryption Patterns
RenLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crypterRansom Note and Payment Demands
After encrypting files, RenLocker displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with RenLocker ransomware:
win.exedll.exe1.exe
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About This Analysis
This RenLocker 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 RenLocker.
Last updated: July 30, 2025