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
How Viro ransomware works
File encryption patterns
Viro modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Viro displays ransom notes demanding payment for file recovery:
notes/note.txt
notes/didierjesus.jpg
Technical indicators
Associated executable files
The following executable files are associated with Viro ransomware:
- Viro.exe
- setup.exe
- Viro (Not Captured in Win7x64).exe
About this analysis
This Viro ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Viro.
Last updated: December 30, 2025
Elastio detects Viro inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Viro across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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