avatar-handler

GHSA-9835-c494-2hxf

Malicious code in avatar-handler (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (c3750cf8fac7fc22334d1fb416e7f3af691425c669829dcc9857abdc1384bbb7)
Code pretending to handling downloading an image, but in fact is prepared to download and execute a Powershell script image properties. No known usage


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


Campaign: 2025-07-avatar-handler


Reasons (based on the campaign):


 - obfuscation


 - 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/avatar-handler/MAL-2025-191685.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/avatar-handler
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/avatar-handler/MAL-2025-191685.json
- https://github.com/advisories/GHSA-9835-c494-2hxf

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.