The 'backup4-gasp' npm package is identified as containing malicious code that fully compromises affected computers. Installation or execution of this package grants an attacker potential full control over the system. Due to the severity of the compromise, all credentials and secrets stored on the system must be rotated from a secure environment. The package removal is necessary but insufficient to fully remediate the infection, as persistent malicious components may remain.

Complete system compromise on any computer with the package installed or running. Potential exposure and theft of all stored secrets and keys. The attacker may maintain persistent access beyond removal of the package.

Immediately remove the 'backup4-gasp' package from affected systems. Rotate all secrets and keys stored on the compromised computer from a separate, secure machine. Conduct a thorough investigation and remediation of the affected system to identify and remove any additional malicious software or backdoors. Because full control may have been given to an attacker, consider rebuilding the system from a known good backup or reinstalling the operating system.