Ransomware Research
Ungluk Ransomware
Ungluk is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2015, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Ungluk
- First Seen
- September 1, 2015
How Ungluk Ransomware Works
File Encryption Patterns
Ungluk modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..0x0Ransom Note and Payment Demands
After encrypting files, Ungluk displays ransom notes demanding payment for file recovery:
READTHISNOW!!!.txtRansom message:
notes/READTHISNOW!!!.txt
Note locations:
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About This Analysis
This Ungluk 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 Ungluk.
Last updated: July 30, 2025