MAL-2025-6521 Malicious code in hellotesthim (PyPI)

Malicious package Published
Package
hellotesthim
Registry
PyPI

What is MAL-2025-6521?

MAL-2025-6521 is a malicious package in hellotesthim, published on 4 Jul 2025.

Official description

Series of packages mostly with an obfuscated infostealer attempting to collect Chrome data. While discord webhook is usually set to an example, there are other, correct uploading URLs

Some of related packages only test partial malicious code, like webhooks from overwritten setup.py


Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-07-0x9xnx

Reasons (based on the campaign):

  • infostealer

  • obfuscation

  • exfiltration-browser-data

  • exfiltration-crypto

  • The package overrides the install command in setup.py to execute malicious code during installation.

What should I do about MAL-2025-6521?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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