MAL-2025-191814 Malicious code in perfviewer (PyPI)
Malicious package
Published
MAL-2025-191814 is a malicious package: perfviewer (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-2025-191814/ (Markdown: https://insights.sbomify.com/MAL-2025-191814/index.md)
- Package
- perfviewer
- Registry
- PyPI
What is MAL-2025-191814?
MAL-2025-191814 is a malicious package in perfviewer, published on 16 Nov 2025.
Official description
During installation, code downloads and starts an executable and a DLL library. After starting them, files are removed from the disk. The executable has been recognized as AsyncRAT
This is a copy of legitimate "rich" package.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-11-perfviewer
Reasons (based on the campaign):
Downloads and executes a remote executable.
clones-real-package
malware
What should I do about MAL-2025-191814?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.