Ransomware Research
Bitmessage Ransomware
Bitmessage is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2015, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Ungluk.
Quick Facts
- Ransomware Family
- Bitmessage
- First Seen
- December 1, 2015
- Known Aliases
- Ungluk
How Bitmessage Ransomware Works
Targeted Files
SAMPLE
File Encryption Patterns
Bitmessage modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..bleep..1999..0x0..H3LL..fuck..him0mRansom Note and Payment Demands
After encrypting files, Bitmessage displays ransom notes demanding payment for file recovery:
READTHISSHITNOWORELSE.TXTRansom message:
notes/READTHISSHITNOWORELSE.TXT
FILESAREGONE.TXTRansom message:
notes/FILESAREGONE.TXT
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About This Analysis
This Bitmessage 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 Bitmessage.
Last updated: July 30, 2025