VYPR

pypi · Malicious package advisory

Malware

brotli-python

MAL-2025-47749

Malicious code in brotli-python (PyPI)

Details


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## Source: kam193 (3750f9d493198c7607b7f1d5855b6e8726edb24618beeb216e5a86a4a9119e5f)
Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.


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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.

Compromised versions (11)

  • 99.3.1
  • 99.6.1
  • 99.99.1
  • 99.5.1
  • 99.2.1
  • 99.1.1
  • 1.9.12
  • 100.99.0
  • 1.0.9
  • 1.1.9
  • 1.2.9

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.