Ransomware Research
BB Ransomware
BB is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2020, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- BB
- First Seen
- March 1, 2020
How BB Ransomware Works
Targeted Files
encrypts %Pictures% folder only -> files = Directory.GetFiles(((ServerComputer)MyProject.Computer).get_FileSystem().get_SpecialDirectories().get_MyPictures()); Encrypted content encoded with base64
File Encryption Patterns
BB modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encryptedbyBBRansom Note and Payment Demands
After encrypting files, BB displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with BB ransomware:
BB Ransomware.exe
Elastio Can Help You
Don't let BB ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This BB 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 BB.
Last updated: July 30, 2025