MAL-2026-2432 Malicious code in nwin64tls (PyPI)
Malicious package
Published
MAL-2026-2432 is a malicious package: nwin64tls (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-2026-2432/ (Markdown: https://insights.sbomify.com/MAL-2026-2432/index.md)
- Package
- nwin64tls
- Registry
- PyPI
What is MAL-2026-2432?
MAL-2026-2432 is a malicious package in nwin64tls, published on 2 Apr 2026.
Official description
Importing the module starts a loop that listens to key strokes and on every capslock press exfiltrates screenshot to a hardcoded location.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-old-nwin32tls
Reasons (based on the campaign):
- spyware-like
What should I do about MAL-2026-2432?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.