MAL-2025-191935 Malicious code in win32str (PyPI)
- Package
- win32str
- Registry
- PyPI
What is MAL-2025-191935?
MAL-2025-191935 is a malicious package in win32str, published on 10 Jun 2025.
Official description
Research packages targeting typosquatting and dependency confusions, without really harmful behaviour - just calling home through DNS resolver.
Related to 2025-06-stubsout (using the same remote domain), but without dangerous activity
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: 2025-06-diar-ai-basic
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.
typosquatting
What should I do about MAL-2025-191935?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.