c0nw0nk/garrys-mod-anti-cheat

Putting Anti back into Anti Cheat by blocking players cheating instead of just detecting what they do. Anti Bhop bunny hopping gmod lua garrysmod

Garrys-Mod-Anti-Cheat

A Simple Anti Cheat

This Anti Cheat is how I like to deal with people and prevent them doing things or bypassing ingame functions with external programs or exploits.

This will be entirely server sided so in the autorun/server folder (You can't trust a client for anything.)

It is still in development but I will list below what methods are finished and what I am still working on.

For a decent Anti wallhack method just put into your servers launch command line "+sv_pure 1"

If you are having issues with players bypassing bans i did a script for that too : https://github.com/C0nw0nk/Garrys-Mod-Family-Sharing

Finished Features :

Anti-Bhop (Bunny Hopping.)

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/anti-bhop.lua

Anti-CVAR-Manipulation (Prevent players changing console variables allowing them to inject their cheats.)

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/anti-cvar-manipulation.lua

Anti-SpeedHacking (Prevent players going beyond their max velocity.)

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/anti-speedhack.lua

Anti-Recoil (Forces players to look up or down when shooting if their weapon has a recoil method attached.)

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/anti-recoil.lua

Anti-Ladder Exploit. (Prevent players abusing HL2 ladders by grabbing onto it and killing themselves at the same time causing them to respawn on the ladder.)

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/anti-ladder-glitch.lua

Under development :

https://github.com/C0nw0nk/Garrys-Mod-Anti-Cheat/blob/master/garrysmod/lua/autorun/server/send-lua-and-net-send.lua

If you choose to allow players to run "sv_allowcslua 1" then we need to prevent them exploiting or having unfair advantages over other players.

Ontop of using SendLua also use net.Send to get information from the client.

garrys-mod-anti-cheat's Issues

Add Anti-Propclimb?

I thought your Anti-BHop script was great. I know for a matter of fact that you can prop-climb in GMOD. I know because I do it. That being said, I was wondering if you would make a script to stop this!
Thanks! Keep up the good work.

new exploit

hey man theres this new exploit

local d = vgui.Create('DHTML');
d:SetAllowLua(true);
return d:ConsoleMessage([[RUNLUA:]]);

do you think you would know how to detect it, i cant figure out
thanks

can i convert it into a plugin and give you credit?

hey, theres a gamemode that uses plugins and it doesnt really have an anticheat, would it be okay if i credited you and ported it as a plugin?
cwhl2rp btw

errors

[ERROR] addons/anticheat/lua/autorun/server/anti-recoil.lua:39: attempt to call method 'Clip1' (a nil value)

1. fn - addons/anticheat/lua/autorun/server/anti-recoil.lua:39
   1. unknown - addons/ulib/lua/ulib/shared/hook.lua:105

plz help, i think its with ulx and anticheat im running ttt

The anti-cvar-manipulation.lua dosent seem to work at all?

Hello! The cvar manipulation detector dosent seem to work at all. Could you check if its outdated or update it? Thanks!

Add Anti Propjump?

Inspired by #1 I want to ask, if you could create an Anti Propjump script.
PropJump works in TTT (and possible more gamemodes) when you put an object above the another,
jump onto the top of upper prop, crouch, select the 'Magneto Stick' and use it with the lower prop.

Because of the physics, you and the props are thrown up and can access locations you shouldn't.

Example video: https://www.youtube.com/watch?v=n8CvtHGesgU

error recoil

[ERROR] addons/anticheat/lua/autorun/server/anti-recoil.lua:20: attempt to index field 'Primary' (a nil value)

1. v - addons/anticheat/lua/autorun/server/anti-recoil.lua:20
   1. unknown - lua/includes/modules/hook.lua:84

it spamming console and its wierd, thanks!

https://i.gyazo.com/5abe24b0158fe4482325e0dab9d41824.png

im running sandbox and i have addons

addon list https://gyazo.com/5a2796804bfaad77975742d19e0b88f5

A Derma Menu/GUI

A menu would be cool for editing values and/or punishments. Not sure if that's in development or not yet.