With ****** Menu v5 you can know who is reporting you if that is the case and you can kick a player from the lobby too
with Endeavour 2.1 you can know who is using mods on you or spectating you
and with GTAForce 2.7.4 you have the anti-crash option, that removes every clone that someone set on you and removes the objects that someone else attach to you, but GTAForce 2.7.4 its full of malware so, wait until someone else make that option in another mod menu
GTAForce 2.7.4 its what you are looking for, but it installs malware in your PC so don't go for that.
You can use the cracked version of Endeavour 2.1 and/or pay for the ****** Menu v5, so you know who's using hacks on you, and deal with that player the way you want.