Skip to content
supplychainattack.orgSupply chain attack incident catalog
resolvedcritical

Malicious code in adosint (PyPI)

The adosint package on PyPI was identified as malicious code, part of a campaign by EsqueleSquad group that published nearly 6,000 malicious packages across PyPI and NPM. The package executes spyware and information-stealing malware.

ShareXLinkedInHacker News
Disclosed
Last updated
Blast radius
Potentially thousands of installations; part of a large-scale malicious package campaign affecting both PyPI and NPM ecosystems.
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • adosintMalicious package published to PyPI

The adosint package published to PyPI was identified as containing malicious code. This package was part of a large-scale supply chain attack campaign attributed to the EsqueleSquad group.\n\nThe EsqueleSquad group published nearly 6,000 malicious packages across both PyPI and NPM ecosystems. These packages were designed to execute spyware and information-stealing malware on affected systems.\n\nThe incident was documented and credited to the OpenSSF's malicious-packages repository, with the specific advisory tracked as MAL-2023-2492. The malicious package has since been identified and removed from the package repository.

Indicators of compromise

Packages
  • adosint

Remediation

  • Remove the adosint package from all environments where it was installed
  • Audit systems that may have executed the malicious package for signs of compromise, including unauthorized access, data exfiltration, or persistence mechanisms
  • Review and revoke any credentials or sensitive information that may have been exposed
  • Monitor for indicators of compromise related to spyware and information-stealing malware
  • Check the OpenSSF malicious-packages repository for a complete list of affected packages in this campaign and remove any others that may be present

Sources

  1. GitHub Advisory GHSA-2gq2-9pv4-x2h9 · GitHub Advisory Database

Cite this entry

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

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 adpip (PyPI)

    The adpip package on PyPI was identified as malicious code, part of a campaign by EsqueleSquad that published nearly 6000 malicious packages across PyPI and NPM. The package executes spyware and information-stealing malware.

    PyPICompromised package
  2. resolvedcritical

    Malicious code in adstr (PyPI)

    The adstr package on PyPI contained malicious code as part of a campaign by EsqueleSquad group that published nearly 6000 malicious packages across PyPI and NPM. The malicious code executed spyware and information-stealing malware.

    PyPICompromised package
  3. resolvedcritical

    Malicious code in adtool (PyPI)

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

    PyPICompromised package
  4. 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