Malware in uac-package
Malware was discovered in the npm package uac-package, resulting in full system compromise of any computer with the package installed or running. The advisory recommends immediate removal of the package and rotation of all secrets and keys from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with uac-package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- uac-package
A critical malware incident was identified in the npm package uac-package. According to the GitHub advisory (GHSA-7cmm-649r-p3q2), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory states that all secrets and keys stored on affected computers should be rotated immediately from a different computer. 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\nThe incident was published on 2026-07-20 via the GitHub advisory system.
Indicators of compromise
- Packages
- uac-package
Remediation
- Remove the uac-package from all affected systems immediately
- Rotate all secrets, keys, and credentials from a different, unaffected computer
- Assume full system compromise and conduct a thorough security audit of affected machines
- Monitor affected systems for signs of persistent malware or unauthorized access
- Consider rebuilding affected systems from clean media if possible
Sources
- GitHub Advisory GHSA-7cmm-649r-p3q2 · GitHub Advisory Database
Cite this entry
"Malware in uac-package." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-uac-package-1tkc3r
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