Exploit Banning? (A script that bans exploiters if an exploit is used.)

Here. Put this in ServerScriptService as a Script

local Ban = {}
local PlayerGUINames = {"NoobGUI","SpawnGUI"."EbicGamz"} -- Put your GUI names here

game.Players.PlayerAdded:Connect(function(player) --Detects new players
    for i,v in pairs (Ban) do -- ignore these lines below. Only for banning the user!
        if player.UserId == v then -- Checks his userid for the bans table
            player:Kick("[Cheat detection] You have been banned from this server using cheats!") -- If the player attempts to join back, He will be banned from the server!
        end
    end -- ignore these lines above. Only for banning the user!

    player.PlayerGui.ChildAdded:Connect(function(GUI) -- Test new GUI's
        for i,v in pairs (PlayerGUINames) do -- Get the names from the table named "PlayerGUINames"
            if not GUI.Name == v then -- Check the GUI name 
                table.insert(Ban, Player.UserId) -- Ban the user
                player:Kick("[Cheat detection] You have been banned from this server using cheats!") -- Kick the scummy player
            end
        end
    end
end)

I used to use exploits so I might be of assistance. Some games when I'd inject my exploit I would get banned for Unexpected GUI. Basically make something that will detect a different GUI then what you made. It might become a tedious task, although it would be worth the price when your players aren't complaining.