fflask

GHSA-mpw9-j6mm-f9gc

Malicious code in fflask (PyPI)

Details

**Severity:** Critical

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

## Source: kam193 (106052056ac243ab1b11c7bbf3a04ff9f1b408cf92616fa635242b4230490d2f)
Importing the module downloads and starts an infostealer attempting to exfiltrate data and establishing persistence through autorun directory.


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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

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/88c73798a8559379079a46c613bf17f15981dcdc/osv/malicious/pypi/fflask/MAL-2025-923.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/fflask
- https://github.com/ossf/malicious-packages/blob/88c73798a8559379079a46c613bf17f15981dcdc/osv/malicious/pypi/fflask/MAL-2025-923.json
- https://www.virustotal.com/gui/file/0736a1f176f081a076b2cba3b54e1cb1462fe1a01be16144397bbc0d4739d01a
- https://www.virustotal.com/gui/file/56ed3b8ca17b00ee8e7a1cb13298e5b12fd1771c24b33b9a84ba92b0610279e5
- https://github.com/advisories/GHSA-mpw9-j6mm-f9gc

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.