# MAL-2025-193014: Malicious code in cas-base (PyPI)


- **Type:** Malicious package
- **Package:** `cas-base` (PyPI)
- **Published:** 14 Jul 2025

## What is MAL-2025-193014?

MAL-2025-193014 is a malicious package in cas-base, published on 14 Jul 2025. 

### Official description

The package contains code to install remotely stored malware and ensure its persistence. The code is not triggered automatically; it requires a separate trigger.

Originally, cas-base was detected in 2025-07 with an unclear payload. Later it got updated to a clearly malicious payload

---

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

Campaign: 2025-07-cas-base

Reasons (based on the campaign):

 - Downloads and executes a remote executable.

 - malware

 - persistence

## What should I do about MAL-2025-193014?

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-2025-193014 is a malicious package: cas-base (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-2025-193014/ (Markdown: https://insights.sbomify.com/MAL-2025-193014/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2025-193014

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From sbomify Insights: https://insights.sbomify.com/MAL-2025-193014/
Summaries are generated and may contain mistakes; the official description above is the record.