Ransomware Research

Gnsyihong Ransomware

Gnsyihong is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Gnsyihong
First Seen
April 1, 2025

How Gnsyihong Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..gnsyihong

Ransom Note and Payment Demands

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

fileREADME.TXT

Ransom message:

notes/README.TXT

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Gnsyihong ransomware:

  • yjhxyubp.exe
  • encrypter-windows-gui-x86.exe

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About This Analysis

This Gnsyihong 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 Gnsyihong.

Last updated: July 30, 2025

Gnsyihong Ransomware - Detectable by Elastio