Ransomware Research
Unlocker Ransomware
Unlocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2022, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Unlocker
- First Seen
- February 1, 2022
How Unlocker Ransomware Works
File Encryption Patterns
Unlocker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockRansom Note and Payment Demands
After encrypting files, Unlocker displays ransom notes demanding payment for file recovery:
ALL_YOUR_FILES_ARE_ENCRYPTED.TXTREADME_WARNING.TXTRansom message:
notes/README_WARNING.TXT
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About This Analysis
This Unlocker 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 Unlocker.
Last updated: July 30, 2025