Ransomware Research
Bbuild Ransomware
Bbuild is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Bbuild
- First Seen
- December 1, 2024
How Bbuild Ransomware Works
File Encryption Patterns
Bbuild modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..bbuildRansom Note and Payment Demands
After encrypting files, Bbuild displays ransom notes demanding payment for file recovery:
HOW_TO_RECOVER_DATA.htmlRansom message:
notes/HOW_TO_RECOVER_DATA.html
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Bbuild ransomware:
B.exe
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About This Analysis
This Bbuild 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 Bbuild.
Last updated: July 30, 2025