Ransomware Research

Python-Client Ransomware

Python-Client is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Python-Client
First Seen
April 1, 2017

How Python-Client Ransomware Works

Ransom Note and Payment Demands

After encrypting files, Python-Client displays ransom notes demanding payment for file recovery:

fileNOTE.html

Ransom message:

notes/NOTE.html

Note locations:

RansomPayloadStartFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Python-Client ransomware:

  • client.exe
  • Python.exe
  • dab.exe
  • Python filecoder Blackhole
  • unknow (3)

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About This Analysis

This Python-Client 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 Python-Client.

Last updated: October 30, 2025

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