Malware in npx-whoami-demo
The npm package npx-whoami-demo was found to contain malware. Any system with this package installed or running should be considered fully compromised, requiring immediate rotation of all secrets and keys from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or executed
- Ecosystems
- Attack vectors
- Affected entities
- npx-whoami-demonpm package containing malware
The npm package npx-whoami-demo was identified as containing malware. According to the GitHub Advisory (GHSA-3mmq-8798-7f4v), 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, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a malicious npm package with potential for complete system compromise.
Indicators of compromise
- Packages
- npx-whoami-demo
Remediation
- Immediately isolate any computer that has npx-whoami-demo installed or has executed it
- Rotate all secrets, API keys, credentials, and authentication tokens from a different, uncompromised computer
- Remove the npx-whoami-demo package from all affected systems
- Perform a full security audit and malware scan of affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
Sources
- GitHub Advisory GHSA-3mmq-8798-7f4v · GitHub Advisory Database
Cite this entry
"Malware in npx-whoami-demo." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malware-in-npx-whoami-demo-1u7ihk
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