Malware in procwire
Malware was discovered in the npm package procwire, resulting in full system compromise for any installation. The package should be removed immediately and all secrets and keys rotated from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with procwire installed or running
- Ecosystems
- Attack vectors
- Affected entities
- procwire
A critical malware incident was identified in the npm package procwire. According to the GitHub Advisory (GHSA-5r42-357x-f2mx), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate removal of the package and rotation of all secrets and keys from a different, unaffected computer. However, due to the nature of the compromise, there is no guarantee that removing the package will eliminate all malicious software that may have been installed as a result.\n\nThis represents a severe supply chain attack through a compromised npm package with potential for widespread impact across all systems that installed or executed the affected code.
Indicators of compromise
- Packages
- procwire
Remediation
- Immediately remove the procwire package from all affected systems
- Rotate all secrets, keys, and credentials from a different, unaffected computer
- Assume full system compromise and conduct forensic analysis
- Review system logs for unauthorized access or activity
- Consider full system reimaging if critical infrastructure is affected
- Monitor for any lateral movement or persistence mechanisms
Sources
- GitHub Advisory GHSA-5r42-357x-f2mx · GitHub Advisory Database
Cite this entry
"Malware in procwire." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 30, 2026; last updated June 30, 2026. https://supplychainattack.org/incident/malware-in-procwire-sfo4ra
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