Ransomware Research
Unlock26 Ransomware
Unlock26 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Unlock26
- First Seen
- February 1, 2017
How Unlock26 Ransomware Works
File Encryption Patterns
Unlock26 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.locked-\w{3}$/Ransom Note and Payment Demands
After encrypting files, Unlock26 displays ransom notes demanding payment for file recovery:
/^ReadMe-\w{3}\.html$/Ransom message:
notes/ReadMe-iJt.html
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Unlock26 ransomware:
1Z7gfdX0.exeUnlock26 ransomwareb1Z7gfdX0.exeUnlock.exeprogram.exeDotRansomwareBuilder.exeBuilder.exe
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About This Analysis
This Unlock26 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 Unlock26.
Last updated: July 30, 2025