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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
..razy
Ransom Note and Payment Demands
After encrypting files, File-Locker displays ransom notes demanding payment for file recovery:
Warning!!!!!!.txt
Ransom message:
notes/Warning!!!!!!.txt
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with File-Locker ransomware:
File-Locker Ransomware.exe
file.exe
b6b.exe
Razy Ransomware.exe
Elastio Can Help You
Don't let File-Locker ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
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