VYPR

pypi · Malicious package advisory

Malware

lib-1779997093-yjeeqn

GHSA-wf4c-4f6q-47v8

Malicious code in lib-1779997093-yjeeqn (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (adfe3f8b85f731f407f8da6669a76b821b042e4ea1f2fd8fcfddf3293c2ca697)
During installation, the package opens a reverse shell


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


Campaign: 2026-05-my-test-package-2025-xyz


Reasons (based on the campaign):


 - The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.


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

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/lib-1779997093-yjeeqn/MAL-2026-4861.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/lib-1779997093-yjeeqn
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/lib-1779997093-yjeeqn/MAL-2026-4861.json
- https://github.com/advisories/GHSA-wf4c-4f6q-47v8

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.