Malware in @achuthvp/postinstall-poc
The npm package @achuthvp/postinstall-poc contained malware that provided full system compromise to an outside entity. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or executed
- Ecosystems
- Attack vectors
- Affected entities
- @achuthvp/postinstall-poc
The npm package @achuthvp/postinstall-poc was found to contain malware. According to the GitHub Advisory (GHSA-rpc3-vhwp-44cv), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise, given that the attacker may have gained full control of the system.\n\nAffected users should treat any system that installed or executed this package as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- @achuthvp/postinstall-poc
Remediation
- Immediately remove the @achuthvp/postinstall-poc package from all systems
- Rotate all secrets, API keys, and credentials from a clean, uncompromised computer
- Assume full system compromise and perform forensic analysis or rebuild affected systems
- Audit logs and monitor for unauthorized access or lateral movement from affected systems
- Check npm audit logs and package.json history to identify when the package was installed
Sources
- GitHub Advisory GHSA-rpc3-vhwp-44cv · GitHub Advisory Database
Cite this entry
"Malware in @achuthvp/postinstall-poc." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-achuthvp-postinstall-poc-1hyk0t
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