MAL-2025-4208 Malicious code in bytedmemfdd345 (PyPI)
Malicious package
Published
MAL-2025-4208 is a malicious package: bytedmemfdd345 (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-2025-4208/ (Markdown: https://insights.sbomify.com/MAL-2025-4208/index.md)
- Package
- bytedmemfdd345
- Registry
- PyPI
What is MAL-2025-4208?
MAL-2025-4208 is a malicious package in bytedmemfdd345, published on 24 Apr 2025.
Official description
During installation, a website with the current working dir is being called. It looks like something between spam and pentest as the website is most probably not in the control of the uploader. The package has no other purpose
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: 2025-04-byted-torch-monitor
Reasons (based on the campaign):
- The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
What should I do about MAL-2025-4208?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.