MAL-2026-10078 Malicious code in vybscan-testbed-inert-postinstall (npm)

package.json declares a postinstall lifecycle script that runs id and reads the process environment, piping the collected host identity and environment variables to a remote endpoint via curl. This fires automatically on npm install without user interaction, causing the installer's environment variables (which routinely contain credentials, tokens, and API keys) and user/host identity to be transmitted off-host to an attacker-controlled destination.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.