MAL-2025-191620 Malicious code in benign-lib (PyPI)
Malicious package
Published
MAL-2025-191620 is a malicious package: benign-lib (PyPI). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2025-191620/ (Markdown: https://insights.sbomify.com/MAL-2025-191620/index.md)
- Package
- benign-lib
- Registry
- PyPI
What is MAL-2025-191620?
MAL-2025-191620 is a malicious package in benign-lib, published on 25 Oct 2025.
Official description
Package hides an executable inside, and starts it when imported. The sandbox analysis shows only starting a calculator, which suggests it's a research attempt without a big harm.
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: 2025-10-benign-lib
Reasons (based on the campaign):
malware
obfuscation
What should I do about MAL-2025-191620?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.