MAL-2026-5812 Malicious code in hello-test-s1 (PyPI)
- Package
- hello-test-s1
- Registry
- PyPI
What is MAL-2026-5812?
MAL-2026-5812 is a malicious package in hello-test-s1, published on 15 Jun 2026.
Official description
The package was found to contain malicious code or consuming dependency that contains malicious code
During installation or importing the module, the package starts a reverse shell to hardcoded locatiom
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-12-aiogram-sever-patch
Reasons (based on the campaign):
The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.
The package overrides the install command in setup.py to execute malicious code during installation.
dependency-confusion
What should I do about MAL-2026-5812?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.