# MAL-2025-5656: Malicious code in malinssx (PyPI)


- **Type:** Malicious package
- **Package:** `malinssx` (PyPI)
- **Published:** 4 Jul 2025

## What is MAL-2025-5656?

MAL-2025-5656 is a malicious package in malinssx, published on 4 Jul 2025. 

### Official description

The only goal of the package is to execute a webhook or a suspicious file during installation.

Closely related to 2025-07-0x9xnx - created after previous packages were quarantined, similar names, similar usage, but no clearly malicious parts.

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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: 2025-07-malimalo

Reasons (based on the campaign):

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

The OpenSSF Package Analysis project identified 'malinssx' @ 0.0.1 (pypi) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

## What should I do about MAL-2025-5656?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2025-5656 is a malicious package: malinssx (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-2025-5656/ (Markdown: https://insights.sbomify.com/MAL-2025-5656/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2025-5656

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From sbomify Insights: https://insights.sbomify.com/MAL-2025-5656/
Summaries are generated and may contain mistakes; the official description above is the record.