VYPR

pypi · Malicious package advisory

Malware

bestcolorsever

GHSA-9m76-qvfm-rmjf

Malicious code in bestcolorsever (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (8335ea2981241d7eb1836338e2a942abf4f5096eb264b0ceb13e85ec435b6465)
Packages either test the malicious behaviour, or actually download and run a simple remote script during the installation.


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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: 2023-12-valuent


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.


 - Downloads and executes a remote malicious script.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/bestcolorsever/MAL-2024-12215.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/bestcolorsever
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/bestcolorsever/MAL-2024-12215.json
- https://github.com/advisories/GHSA-9m76-qvfm-rmjf

Compromised versions (1)

  • = 1.0.0

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