Ransomware Research
File-Locker Ransomware
File-Locker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- File-Locker
- First Seen
- December 1, 2017
How File-Locker Ransomware Works
File Encryption Patterns
File-Locker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..locked..razyRansom Note and Payment Demands
After encrypting files, File-Locker displays ransom notes demanding payment for file recovery:
Warning!!!!!!.txtRansom message:
notes/Warning!!!!!!.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with File-Locker ransomware:
File-Locker Ransomware.exefile.exeb6b.exeRazy Ransomware.exe
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About This Analysis
This File-Locker 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 File-Locker.
Last updated: July 30, 2025