The internallib_v164 npm package exports a function that runs a shell command executing a curl request to a remote server (reverse-shell.sh) at the IP 10.0.72.234:4444, piping the downloaded script to sh. This results in an outbound interactive reverse shell connection to the attacker-controlled internal network address, enabling arbitrary code execution and persistent interactive access on the compromised host. The malicious behavior is triggered when the exported function is invoked by a consumer of the package. The affected versions are explicitly 6.0.9, 4.0.9, 1.0.7, and 1.0.9. Due to the nature of the compromise, full system control by an attacker is likely, and simple removal of the package does not guarantee full remediation.

Hosts with the affected internallib_v164 package versions installed and invoked are fully compromised, as the package opens a reverse shell to an attacker-controlled internal network address. This grants the attacker arbitrary code execution and persistent interactive access, potentially exposing all secrets and keys stored on the host. The compromise is severe and may allow lateral movement within internal networks. Removal of the package alone is insufficient to ensure system integrity.

No official patch or fix is indicated in the available data. Immediate removal of the internallib_v164 package versions 6.0.9, 4.0.9, 1.0.7, and 1.0.9 is recommended. However, because the package grants full control to an attacker, it is critical to assume full system compromise. All secrets and keys stored on the affected host should be rotated immediately from a separate, uncompromised system. Comprehensive incident response and forensic analysis should be conducted to identify and remove any additional malicious artifacts or persistence mechanisms.