Ransomware Research
RansomUserLocker Ransomware
RansomUserLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- RansomUserLocker
- First Seen
- January 1, 2018
How RansomUserLocker Ransomware Works
Targeted Files
Requires C&C
File Encryption Patterns
RansomUserLocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..RansomUserLockerRansom Note and Payment Demands
After encrypting files, RansomUserLocker displays ransom notes demanding payment for file recovery:
READ_ME.txtRansom message:
notes/READ_ME.txt
Note locations:
DesktopRansom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with RansomUserLocker ransomware:
RansomUserLocker.exe
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About This Analysis
This RansomUserLocker 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 RansomUserLocker.
Last updated: July 30, 2025