# MAL-2025-2621: Malicious code in bsb-backup (PyPI)


- **Type:** Malicious package
- **Package:** `bsb-backup` (PyPI)
- **Published:** 24 Mar 2025

## What is MAL-2025-2621?

MAL-2025-2621 is a malicious package in bsb-backup, published on 24 Mar 2025. 

### Official description

This package decodes and executes a script during installation to set up a Telegram bot for device event monitoring. However, the code is obfuscated, making it difficult to comprehend and obscuring its true intent.

## What should I do about MAL-2025-2621?

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-2025-2621 is a malicious package: bsb-backup (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-2025-2621/ (Markdown: https://insights.sbomify.com/MAL-2025-2621/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2025-2621

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From sbomify Insights: https://insights.sbomify.com/MAL-2025-2621/
Summaries are generated and may contain mistakes; the official description above is the record.