Supply-chain threat intelligence

Incident detail

criticalpypi·obfuscation·osv

Malicious code in temp-development-package-test (PyPI)

temp-development-package-test

Risk score

92

AI summary

Indexed incident for temp-development-package-test (pypi).

Description

Starting with version 0.4, package installs a sitecustomize.py that executes during Python engine initialization. The embeded code uses mshta to download malicious code, as in other packages from the campaign.


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

Campaign: 2026-06-easyaillm

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • obfuscation

  • malware

Technical details

Affected versions

=0.1=0.2=0.3=0.4

Indicators

  • affected version=0.175%
  • affected version=0.275%
  • affected version=0.375%
  • affected version=0.475%

Timeline

  1. Advisory published
  2. Indexed by ThreatPkg

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