Ransomware Research
RabboLock Ransomware
RabboLock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: R4bb0l0ck, RabboLock Dutch.
Quick Facts
- Ransomware Family
- RabboLock
- First Seen
- June 1, 2017
- Known Aliases
- R4bb0l0ckRabboLock Dutch
How RabboLock Ransomware Works
File Encryption Patterns
RabboLock modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..R4bb0l0ckRansom Note and Payment Demands
After encrypting files, RabboLock displays ransom notes demanding payment for file recovery:
LEES_MIJ.txtRansom message:
notes/LEES_MIJ.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with RabboLock ransomware:
hidden-tear.exeR4bb0l0ck Ransomware.exeHiddenTear.exeR4bb0l0ck Ransomware.binR4bb0l0ck.exeRabboLock.exe
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About This Analysis
This RabboLock 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 RabboLock.
Last updated: July 30, 2025