# MAL-2025-6487: Malicious code in crto0 (PyPI)


- **Type:** Malicious package
- **Package:** `crto0` (PyPI)
- **Published:** 15 Jul 2025

## What is MAL-2025-6487?

MAL-2025-6487 is a malicious package in crto0, published on 15 Jul 2025. 

### Official description

Importing the module starts downloading or decrypting, and then executing an executable being a wide recognized malware/Infostealer (Redline family)

---

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

Campaign: 2025-07-crpt

Reasons (based on the campaign):

 - infostealer

 - Downloads and executes a remote executable.

 - Downloads and executes a remote malicious script.

 - exfiltration-crypto

 - malware

## What should I do about MAL-2025-6487?

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-2025-6487 is a malicious package: crto0 (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-2025-6487/ (Markdown: https://insights.sbomify.com/MAL-2025-6487/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2025-6487

---
From sbomify Insights: https://insights.sbomify.com/MAL-2025-6487/
Summaries are generated and may contain mistakes; the official description above is the record.