The 'metrica-chain' npm package version 2.4.5 is identified as containing malicious code that results in a full system compromise. According to the source advisory, any system with this package installed or running should be considered fully compromised, requiring immediate secret and key rotation from a separate, uncompromised device. The advisory warns that removal of the package does not ensure complete eradication of the malicious presence, indicating potential persistence mechanisms or additional malware installed alongside the package.

Full compromise of the affected computer, including potential unauthorized access and control by an attacker. All secrets and keys stored on the system are at risk and must be rotated immediately. The system's integrity and confidentiality are severely impacted, and removal of the package alone may not restore security.

Remove the 'metrica-chain' package version 2.4.5 immediately. Rotate all secrets and keys stored on the compromised system from a different, secure computer. Because the system may remain compromised even after package removal, consider rebuilding or thoroughly cleaning the affected system to ensure complete eradication of malicious software.