fkask

GHSA-9jpw-82wm-rq9q

Malicious code in fkask (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 3.1.8.dev0`

## Source: kam193 (d3bbbce78f8816ead148780776c4371cdd08775ee74639fea33b9598f8bb4b2b)
Importing the module downloads and starts an infostealer attempting to exfiltrate data and establishing persistence through autorun directory.


---

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


Campaign: 2024-12-reqesst


Reasons (based on the campaign):


 - infostealer


 - peristence-autorun


 - typosquatting


 - exfiltration-generic


 - Downloads and executes a remote executable.


 - clones-real-package


 - dependency-confusion


 - exfiltration-browser-data


 - exfiltration-crypto

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/fkask/MAL-2025-925.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/fkask
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/fkask/MAL-2025-925.json
- https://www.virustotal.com/gui/file/0736a1f176f081a076b2cba3b54e1cb1462fe1a01be16144397bbc0d4739d01a
- https://www.virustotal.com/gui/file/56ed3b8ca17b00ee8e7a1cb13298e5b12fd1771c24b33b9a84ba92b0610279e5
- https://github.com/advisories/GHSA-9jpw-82wm-rq9q

Compromised versions (1)

= 3.1.8.dev0

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