The "remid cookie grabber" for The Sims 4 typically refers to a manual method or tool used to extract a specific authentication token—the cookie—from the EA website
Once the malicious file is executed:
The tool identifies the remid cookie from your browser session on the official EA website . This cookie acts as a "Remember Me" ID, allowing the game to "spoof" a login and connect to EA's servers to access shared content. Steps to Manually Find Your Remid Cookie