Ransomware Research

Silvertor Ransomware

Silvertor is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2020, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Silvertor
First Seen
July 1, 2020

How Silvertor Ransomware Works

File Encryption Patterns

Silvertor modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..silvertor

Ransom Note and Payment Demands

After encrypting files, Silvertor displays ransom notes demanding payment for file recovery:

fileREADME.html

Ransom message:

notes/README.html

Note locations:

StartUp

Technical Indicators

Associated Executable Files

The following executable files are associated with Silvertor ransomware:

  • sys_startup.exe
  • eq_2100.exe
  • twitter_can_demo.exe

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About This Analysis

This Silvertor 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 Silvertor.

Last updated: October 30, 2025

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