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resolvedcritical

Malicious code in adpep (PyPI)

The adpep package on PyPI contained malicious code as part of a campaign by EsqueleSquad group. The group published nearly 6,000 malicious PyPI and NPM packages designed to execute spyware and information-stealing malware.

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Disclosed
Last updated
Blast radius
Unknown; part of large-scale malicious package campaign affecting potentially thousands of users
Ecosystems
PyPI
Attack vectors
Compromised package
Threat actor
Esquelesquad
Affected entities
  • adpepPyPI package containing malicious code

The adpep package on PyPI was identified as containing malicious code. This package was part of a large-scale campaign by the EsqueleSquad group, which published nearly 6,000 malicious packages across PyPI and NPM ecosystems.\n\nThe malicious packages were designed to execute spyware and information-stealing malware on affected systems. The incident was documented and tracked by the OpenSSF (Open Source Security Foundation) in their malicious-packages repository.\n\nThe package has been identified and cataloged under the OpenSSF malicious packages database (MAL-2023-2494), indicating the incident has been documented and addressed by the security community.

Indicators of compromise

Packages
  • adpep

Remediation

  • Remove the adpep package from all environments
  • Audit systems that installed adpep for signs of compromise or data exfiltration
  • Review and revoke any credentials or sensitive data that may have been exposed
  • Monitor for indicators of compromise related to spyware or information-stealing malware
  • Check the OpenSSF malicious-packages repository for the complete list of affected packages from this campaign

Sources

  1. GitHub Advisory GHSA-8qcw-v243-chpx · GitHub Advisory Database

Cite this entry

"Malicious code in adpep (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-adpep-pypi-bu1yau

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