Malware in lib-mtop
Malware was discovered in the npm package lib-mtop, resulting in full system compromise of any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with lib-mtop installed or running
- Ecosystems
- Attack vectors
- Affected entities
- lib-mtop
A critical malware incident was identified in the npm package lib-mtop. According to the GitHub Advisory (GHSA-vrrg-j2c5-mj4v), 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 their systems as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- lib-mtop
Remediation
- Immediately rotate all secrets and keys stored on affected computers from a different, uncompromised system
- Remove the lib-mtop package from all affected systems
- Conduct a full security audit and forensic analysis of any system that had lib-mtop installed
- Monitor affected systems for signs of persistent malware or unauthorized access
- Consider rebuilding affected systems from clean media if full compromise is suspected
Sources
- GitHub Advisory GHSA-vrrg-j2c5-mj4v · GitHub Advisory Database
Cite this entry
"Malware in lib-mtop." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 28, 2026; last updated July 28, 2026. https://supplychainattack.org/incident/malware-in-lib-mtop-1f6sar
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