VYPR

pypi · Malicious package advisory

Malware

bash8

MAL-2026-5768

Malicious code in bash8 (PyPI)

Details


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## Source: amazon-inspector (e665213ba552605420b2269888e041b8b8af4c9e8314d731a8aa246f0fefd748)
Package is published as 'bash8' (matching an existing PyPI bash linter) but installs a top-level module named 'ca_certificates' whose only content is a stub `__version__ = "0.0.0"` and an `info()` function returning the string 'This is a dummy bash8 package for PyPI.' Author metadata is the placeholder 'Your Name <you@example.com>'. The package contains no install hooks, no network I/O, no subprocess execution, and no credential reads — it is functionally inert. The installable module name 'ca_certificates' would shadow imports of that identifier in any environment where this package is installed, and the distribution name collides with an existing linter. Name confusion alone, without an installer-harm payload, is a subjective signal best resolved by a human reviewer.

## Source: kam193 (cc82142b2f705e97dabfd2945e1f4686296211b857a6ccda5195803650bddf63)
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)

  • 0.0.0
  • 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.