klsosdoids5

GHSA-xp7m-vpr2-628p

Malicious code in klsosdoids5 (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1`

## Source: kam193 (9463b9f77f9d64f5acb9c6a75b2969333be89d6d850af7e75628532ff23e0641)
Package simulates calling home on import and there 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: 2025-10-wangzhou183


Reasons (based on the campaign):


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

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/klsosdoids5/MAL-2025-191777.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/klsosdoids5
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/klsosdoids5/MAL-2025-191777.json
- https://github.com/advisories/GHSA-xp7m-vpr2-628p

Compromised versions (1)

= 0.1

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