Remote Event being inserted into my game from external source (?)

Hello,
First of all sorry if I’m using the wrong category.
Recently a user called RelyOnNothing used exploits that crashed the server and ever since then a remote event with a random name is inserted into the game which loads in a script that kicks everyone.
The remote event, again, the name randomly changes with each server and it only appears in-game.
remoteevent

I’ve made a script that deletes the latter but I’m worried that he could just insert something else via the still existing remote event.
I’ve already looked in the hidden classes and nothing in there seems to be anything malicious/related to the remote event and script being inserted and also searched for getfenv() and require() scripts.

I’ve tried getting the code of the kick script but it seems like only the remote event is being loaded in, no longer any script.

I hope the text explains my problem in an understandable way.

Try checking your plugins if you have any. Simply grab the plugin ID you want to inspect, then in the command bar do

game:GetObjects("rbxassetid://ID HERE")[1].Parent = workspace

Thanks for the quick reply!

My plugins aren’t the problem.
I’ve already uninstalled all plugins which I didn’t get from the toolbox’s “front page” except Moon Animator and checked my newest ones.