Ransomware Research
VXUG Ransomware
VXUG is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2023, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Vx-underground.
Quick Facts
- Ransomware Family
- VXUG
- First Seen
- November 1, 2023
- Known Aliases
- Vx-underground
How VXUG Ransomware Works
Targeted Files
Full extension -> .id[C63F241F-6666].[staff@vx-underground.org].VXUG
File Encryption Patterns
VXUG modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..VXUGRansom Note and Payment Demands
After encrypting files, VXUG displays ransom notes demanding payment for file recovery:
Buy Black Mass Volume II.htaRansom message:
notes/Buy Black Mass Volume II.hta
Note locations:
RootDiscsDesktopBuy Black Mass Volume I.txtRansom message:
notes/Buy Black Mass Volume I.txt
Note locations:
RootDiscsDesktophow_to_decrypt.htaRansom message:
notes/how_to_decrypt.hta
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with VXUG ransomware:
AntiRecuvaAndDB.exe
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About This Analysis
This VXUG 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 VXUG.
Last updated: July 30, 2025