Ransomware Research
Viro Ransomware
Viro is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Viro
- First Seen
- July 1, 2017
How Viro Ransomware Works
File Encryption Patterns
Viro modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockedRansom Note and Payment Demands
After encrypting files, Viro displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionRansom message:
notes/didierjesus.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Viro ransomware:
Viro.exesetup.exeViro (Not Captured in Win7x64).exe
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About This Analysis
This Viro 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 Viro.
Last updated: July 30, 2025