Ransomware Research

Xorist-RuSVon Ransomware

Xorist-RuSVon 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. Security researchers also track this malware under the aliases: RuSVon.

Quick Facts

Ransomware Family
Xorist-RuSVon
First Seen
July 1, 2017
Known Aliases
RuSVon

How Xorist-RuSVon Ransomware Works

File Encryption Patterns

Xorist-RuSVon modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..RuSVon..done

Ransom Note and Payment Demands

After encrypting files, Xorist-RuSVon displays ransom notes demanding payment for file recovery:

fileHOW TO DECRYPT FILES.txt

Ransom message:

notes/HOW TO DECRYPT FILES.txt

Note locations:

EveryFolder
message

Ransom message:

notes/note.txt

Note locations:

OnceOnCompletion

Technical Indicators

Associated Executable Files

The following executable files are associated with Xorist-RuSVon ransomware:

  • myfile.exe
  • XX.exe
  • Start.exe.bin

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About This Analysis

This Xorist-RuSVon 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 Xorist-RuSVon.

Last updated: July 30, 2025

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What is Xorist-RuSVon Ransomware? | Elastio