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OpenAdvisories
Malicious MAL-2026-2241

pacbot

PyPI package · versions 1.0.1

Reported Mar 26, 2026 · Updated Mar 27, 2026

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 (77976a83e69cb239c03d7d5f13eefeaa61eaae708c066a584609d8b7d8a932bd)
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 (45b14ac31ccfbdde7ee7d00b07480b4ce6b01402e7e0b2e9f43c476ce83c73a3)
The OpenSSF Package Analysis project identified 'pacbot' @ 1.0.1 (pypi) as malicious.

It is considered malicious because:

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