zyto

GHSA-385c-v792-v6cc

Malicious code in zyto (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.2.0`

## Source: kam193 (817f92245d406e764c42e8038b2ea559a6bd6deb1706b80e2699e0ab724111a2)
The package ships an executable started during the building of a wheel/installation. It has been identified as malicious by some AV vendors, but primarily it is a preparation to embed a RAT as in another campaign's package.


---

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


Campaign: 2026-11-filipt


Reasons (based on the campaign):


 - The package overrides the install command in setup.py to execute malicious code during installation.


 - malware


 - rat

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/1e4237ca98763ed2d8211b2da89735a05116385b/osv/malicious/pypi/zyto/MAL-2026-18582.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/zyto
- https://github.com/ossf/malicious-packages/blob/1e4237ca98763ed2d8211b2da89735a05116385b/osv/malicious/pypi/zyto/MAL-2026-18582.json
- https://tria.ge/261103-xxcp9aez3r
- https://www.virustotal.com/gui/file/1a89eb45ed45780f16499b0f87ff3dd17db4be0988f7befbfa88224d83fccae2/detection
- https://www.virustotal.com/gui/file/c8ecde6b3840ab32ceace277f7fd1bfc63eb87344ab9147651e3c4c11dbbac93/detection
- https://www.virustotal.com/gui/file/e5a585e03e1725d5030fd4854805933d53aa86cfbbb0b3808dffcc63782ddf38/detection
- https://www.virustotal.com/gui/file/f511eff8b0cec4854856e3686a3eded0decf5fa3b04d585f9f2e951b7d13c295/detection
- https://github.com/advisories/GHSA-385c-v792-v6cc

Compromised versions (1)

= 0.2.0

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