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OpenAdvisories
Malicious MAL-2025-47820

propeller-solver-core

PyPI package · versions 133.3.7

Reported Sep 28, 2025 · Updated Dec 3, 2025

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (a79fc2ce4f8dbef3a36ad1dcf36011f9d86435f347aa81ed601295d75e818b04)
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.

Source: ossf-package-analysis (a60c45782766334b6a7985c2a3fc269d737651c1169d8139d1e13302eb10c5c5)
The OpenSSF Package Analysis project identified 'propeller-solver-core' @ 133.3.7 (pypi) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.