VYPR

pypi · Malicious package advisory

Malware

cosmos-cuda

MAL-2026-10617

Malicious code in cosmos-cuda (PyPI)

Details


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## Source: amazon-inspector (c1a96e5776ec64356f639738134c95a2f33233a4275d2d0ddd6b174c297c64ee)
The sdist-only package cosmos-cuda 9999.0.0 executes a beacon function `_beacon('build')` from setup.py during sdist build/install and `_beacon('import')` from cosmos_cuda/__init__.py at import. Both code paths collect the installer's hostname, current username, and current working directory, then transmit them to the hardcoded external host `oob.asyncrun.in` via a DNS lookup of a crafted FQDN (socket.getaddrinfo) and via an HTTPS/HTTP GET request (urllib.request.urlopen). The package ships only as an sdist and uses version 9999.0.0 so that pip's highest-version resolution selects it when a name collision exists against an internal package resolved through `--extra-index-url`, forcing setup.py execution during install and producing arbitrary code execution and exfiltration on installers whose environment resolves the name.

## Source: kam193 (bd8651969d2a82aa0c96bae9bce8bffaa3053dc4093fcafc614f7cda24b19542)
Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.


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Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.


Campaign: GENERIC-standard-pypi-install-pentest


Reasons (based on the campaign):


 - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.


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

Compromised versions (2)

  • 9999.0.0
  • 9999.0.1

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