MAL-2025-6213 Malicious code in donotinstallthisistest6 (PyPI)

Malicious package Published
Package
donotinstallthisistest6
Registry
PyPI

What is MAL-2025-6213?

MAL-2025-6213 is a malicious package in donotinstallthisistest6, published on 21 Jul 2025.

Official description

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.


Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • The package overrides the install command in setup.py to execute malicious code during installation.

The OpenSSF Package Analysis project identified 'donotinstallthisistest6' @ 1.0.0 (pypi) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.

What should I do about MAL-2025-6213?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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