Ransomware Research
ViiperWare Ransomware
ViiperWare is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- ViiperWare
- First Seen
- October 1, 2017
How ViiperWare Ransomware Works
Targeted Files
Encrypts only Test folder on the Desktop
File Encryption Patterns
ViiperWare modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..viiperRansom Note and Payment Demands
After encrypting files, ViiperWare displays ransom notes demanding payment for file recovery:
READ_IT.txtRansom message:
notes/READ_IT.txt
Note locations:
DesktopRansom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with ViiperWare ransomware:
ViiperWare - Ransomware.exe
Elastio Can Help You
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About This Analysis
This ViiperWare 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 ViiperWare.
Last updated: July 30, 2025