What are some GMod hacks?

I am not starting this thread so I can hack, I just want to learn the power, as my server has been hacked.
I made a thread earlier asking how to deal with a backdoor. My friend says there is no backdoor with this amount of power, so I am sharing what this hacker can do:
He can explode everyone, forcing godded players out of god.
He can play music on your client (got real annoying).
He can make your screen flash in a rainbow color.
He has access to console, even when not in the game.
Here is a video of him hacking my client:https://www.dropbox.com/s/2hb259t7ygjkmr...d.mp4?dl=0
Here is his steam profile:http://steamcommunity.com/id/NibbaFaggot/
The reason I could tell this guy was hacking is because he was the only person never affected by this, he exploded the whole server, and the only person who didn't die in that was him. I restarted the server a couple of times, and banned his steam ID, but he was still accessing console, as he was forcing me to say "!unban <his steamid>".
Does anyone know of the hack that has this power? How do I get rid of this?

He has your RCON pass is my guess. Change your RCOn password.

26-11-2017, 03:56 AM

Haze_of_dream Wrote: He has your RCON pass is my guess. Change your RCOn password.

I agree. WHo knows what can happen if someone else gets hold of your rcon password.

Honestly, these cheaters are already fed up on the server and start doing nonsense or just breaking the server or completely removing

26-11-2017, 03:56 AM

Haze_of_dream Wrote: He has your RCON pass is my guess. Change your RCOn password.

He didn't have my RCON password because he could only make people say things, and when he spoke from console, it would print like this:
console<message>
when it should print like this:
Console: <message>

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26-11-2017, 04:05 AM

msalemi2 Wrote: I agree. WHo knows what can happen if someone else gets hold of your rcon password.

He didn't have my RCON password because he could only make people say things, and when he spoke from console, it would print like this:
console<message>
when it should print like this:
Console: <message>

hacking on gmod can be prevented with anticheats look into these

citizenhack is the best hack that exist right now and undetectable

I do not know I do not know gmod lehack well I should try to let you know

Im soryy that is pretty funny lol! but learn lua and he has you RCON

Well make sure your server has sv_allowcslua set to 0 and to be safe just change your rcon pass