s3ffs

GHSA-rfrm-2jv3-vrgr

Malicious code in s3ffs (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (bcbd170ded254c386778d86dbd56a4d2fc5e7dfdeb37bd17fa2198e85e5c93c7)
Package uses the template from https://github.com/thegoodhackertv/malpip to explore building malicious PyPI packages.


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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.


Campaign: SCRIPT_KIDDIE-thegoodhacker-paquete


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.


 - Package uses simple pre-prepared tools to create a low-quality malicious action.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/s3ffs/MAL-2025-5131.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/s3ffs
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/s3ffs/MAL-2025-5131.json
- https://github.com/thegoodhackertv/malpip
- https://github.com/advisories/GHSA-rfrm-2jv3-vrgr

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.