Ransomware Research

PySimCrypt Ransomware

PySimCrypt 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
PySimCrypt
First Seen
June 1, 2025

How PySimCrypt Ransomware Works

Ransom Note and Payment Demands

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

fileREADME.txt

Ransom message:

notes/README.txt

Note locations:

EveryFolder

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About This Analysis

This PySimCrypt 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 PySimCrypt.

Last updated: December 30, 2025

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