Ransomware Research

Gbst524 Ransomware

Gbst524 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Gbst524
First Seen
June 1, 2025

How Gbst524 Ransomware Works

File Encryption Patterns

Gbst524 modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..Gbst524

Ransom Note and Payment Demands

After encrypting files, Gbst524 displays ransom notes demanding payment for file recovery:

fileKLjapFqw.README.txt

Ransom message:

notes/KLjapFqw.README.txt

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Gbst524 ransomware:

  • lock.exe

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About This Analysis

This Gbst524 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 Gbst524.

Last updated: September 30, 2025

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