Skip to content
supplychainattack.orgSupply chain attack incident catalog
resolvedcritical

Malicious code in admcheck (PyPI)

Malicious code was discovered in multiple versions of the admcheck package on PyPI. The package was identified by the OpenSSF malicious-packages project as containing malicious code.

ShareXLinkedInHacker News
Disclosed
Last updated
Blast radius
All users who installed affected versions of admcheck from PyPI
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • admcheckPyPI package

The admcheck package on PyPI was found to contain malicious code across multiple versions. The vulnerability was identified and documented by the OpenSSF's malicious-packages project (reference MAL-2024-4732).\n\nThe malicious package was published on PyPI and could have been installed by users seeking the admcheck functionality. Any system that installed an affected version of admcheck would have been compromised.\n\nUsers should immediately remove admcheck from their environments and audit systems for any suspicious activity. The package should not be reinstalled unless confirmed to be from a legitimate source.

Indicators of compromise

Packages
  • admcheck

Remediation

  • Remove admcheck from all affected systems immediately
  • Audit systems that installed admcheck for signs of compromise
  • Review package dependencies to identify any systems that may have installed admcheck as a transitive dependency
  • Monitor for any suspicious activity on systems that previously had admcheck installed
  • Use only verified, legitimate versions of required packages from trusted sources

Sources

  1. GitHub Advisory GHSA-xr2r-4crg-5qj5 · GitHub Advisory Database

Cite this entry

"Malicious code in admcheck (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-admcheck-pypi-004eas

Suggest a correction

Found an error or have a newer source? Corrections to factual errors take priority over new entries.

Related incidents

  1. resolvedcritical

    Malicious code in afrit-name (PyPI)

    Malicious code was discovered in the afrit-name package on PyPI. The incident was identified and documented by the OpenSSF malicious packages project.

    PyPICompromised package
  2. resolvedcritical

    Malicious code in adv2099m7 (PyPI)

    Malicious code was discovered in the adv2099m7 package on PyPI. The package was identified and cataloged by the OpenSSF malicious packages project.

    PyPICompromised package
  3. resolvedcritical

    Malicious code in adrandom (PyPI)

    The adrandom package on PyPI contained malicious code that executed spyware and information-stealing malware. It was part of a campaign by the EsqueleSquad group that published nearly 6,000 malicious packages across PyPI and NPM.

    EsquelesquadPyPICompromised package
  4. resolvedcritical

    Malicious code in ziphash (PyPI)

    The ziphash package on PyPI contained malicious code that downloads and executes multi-stage malware during archive-support class initialization. The malware exhibits obfuscation and remote code execution capabilities, classified as part of the 2025-11-uzip campaign.

    2025 11 UzipPyPICompromised package