nodemon-web is a malicious npm package that copies the source code and metadata of the legitimate nodemon package to impersonate it. It adds a runtime dependency on type-swap@^3.1.3, which is not required or imported by the package, thereby introducing unauthorized third-party code into the consumer's environment. This behavior indicates a supply chain attack aiming to execute malicious code under the guise of a trusted package. The package version 3.1.13 is affected. The presence of this package on a system implies full compromise, necessitating immediate secret rotation and comprehensive remediation.

Any computer with nodemon-web version 3.1.13 installed or running is considered fully compromised. Attackers may have gained full control, potentially accessing all stored secrets and keys. Simply removing the package does not guarantee removal of all malicious artifacts or backdoors introduced by the package. This poses a severe risk to confidentiality, integrity, and availability of affected systems.

Remove the nodemon-web package immediately. Rotate all secrets, credentials, and keys stored on the affected system from a separate, trusted environment. Conduct a thorough investigation and remediation of the compromised system, as removal of the package alone may not eliminate all malicious components. Avoid installing packages with suspicious metadata or from untrusted sources. Monitor for any signs of persistent compromise.