yuzo

GHSA-38qh-vg5h-3j68

Malicious code in yuzo (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (deb22bdfdecb739735dd50a5e0e2fe8329ee260b7236db8112629d7516d081d4)
Package contains an infostealer and is clearly prepared for using it. Different versions present different variations, newer are based on CStealer. The exfiltration target is a hardcoded discord webhook


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


Campaign: 2025-09-suyo


Reasons (based on the campaign):


 - infostealer


 - infostealer:cstealer


 - exfiltration-browser-data

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/yuzo/MAL-2025-48911.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/yuzo
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/yuzo/MAL-2025-48911.json
- https://github.com/advisories/GHSA-38qh-vg5h-3j68

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.