Anti-cheat guide
AC (anti cheat) guide
Server setup
3 settings in mtaserver.conf control AC behaviour for a server:
<disableac></disableac>
Comma separated list of disabled anti-cheats. This setting disables specific AC codes. AC codes are shown to the player when that detection has been triggered. Available codes are:
| Code for <disableac> | Displayed on detect | Notes |
|---|---|---|
| 1 | AC #1 | Classic health/armour hack detector |
| 4 | AC #4 | Detects presence of trainer. Capital letters in the message are for tagging particular trainers |
| 5 | AC #5 | Detects use of trainer. |
| 6 | VF #6 | Detects use of trainer incl.: player movement, health/damage, weapons, money, gamespeed, game cheats, aimbot |
| 7 | VF #7 | Detects use of trainer. |
| 8 | VF #8 | Detects unauthorized mods. Capital letters in the message are for tagging particular items e.g. CLEO - Cleo detected, RENDER - Wall hack detected |
| 11 | AC #11 | More trainers |
| VF #11 | Dll injector / Trainer | |
| 13 | SD #13 | Data files issue |
| 17 | VF #17 | Speed / wall hacks |
<enablesd></enablesd>
Comma separated list of enabled special detections. A special detection is a type of anti-cheat for (usually) harmless game modifications. Competitive servers may wish to enable special detections, but most servers should leave this setting blank. Available codes are:
| Code for <enablesd> | Displayed on detect | Notes |
|---|---|---|
| 12 | SD #12 | Disallow custom D3D9.DLL |
| 14 | SD #14 | Disallow virtual machines such as VMWare - Requires 1.3.1 server with<minclientversion>1.3.1</minclientversion> |
| 15 | SD #15 | Disallow disabled driver signing - From 1.3.1-9.04791 |
<client_file name="data/carmods.dat" verify="0"/>
By default, clients may not join a server if they have customized GTA:SA data files. Adding one or more of the above lines excludes files from validation. The file names that can be used are:
- "data/carmods.dat"
- "data/animgrp.dat"
- "data/ar_stats.dat"
- "data/melee.dat"
- "data/clothes.dat"
- "data/object.dat"
- "data/default.dat"
- "data/surface.dat"
- "data/default.ide"
- "data/gta.dat"
- "data/surfinfo.dat"
- "data/peds.ide"
- "data/vehicles.ide"
- "data/pedstats.dat"
- "data/water.dat"
- "data/txdcut.ide"
- "data/water1.dat"
- "models/coll/weapons.col"
- "data/weapon.dat"
- "data/plants.dat"
- "anim/ped.ifp"
- "data/furnitur.dat"
- "data/procobj.dat"
- "data/maps"
Note 1: "data/maps" represents all the files and directories within "data/maps"
Note 2: "data/handling.cfg" is not included as it is always ignored by MTA because of the internal vehicle handling functions. See here if you want to load custom handling.cfg files
Client
When joining a server, the server AC info is displayed in the client console (F8)
Example:
Server AC Info: [Allowed client files: None] [Disabled AC: None] [Enabled SD: None]
Disabled AC contains the contents of the server setting from <disableac></disableac>
Enabled SD contains the contents of the server setting from <enablesd></enablesd>
Allowed client files contains numbers to indicate which client files the server allows to be modified. The numbers represent these files:
- 1 - "data/carmods.dat"
- 2 - "data/animgrp.dat"
- 4 - "data/ar_stats.dat"
- 5 - "data/melee.dat"
- 6 - "data/clothes.dat"
- 7 - "data/object.dat"
- 8 - "data/default.dat"
- 9 - "data/surface.dat"
- 10 - "data/default.ide"
- 12 - "data/gta.dat"
- 13 - "data/surfinfo.dat"
- 14 - "data/peds.ide"
- 15 - "data/vehicles.ide"
- 16 - "data/pedstats.dat"
- 17 - "data/water.dat"
- 18 - "data/txdcut.ide"
- 19 - "data/water1.dat"
- 20 - "models/coll/weapons.col"
- 21 - "data/weapon.dat"
- 22 - "data/plants.dat"
- 23 - "anim/ped.ifp"
- 24 - "data/furnitur.dat"
- 25 - "data/procobj.dat"
- 26 - "data/maps"
Using modified files
If you want to use modified data files from your GTA:SA install directory, check this check box:
Settings->Multiplayer->Use customized GTA:SA files
(check box only appears if your GTA:SA data files are customized)
Note that this will restrict your access to public servers as most do not allow customized data files.
AC Panel resource
An anti-cheat helper resource called acpanel is available on community.
It shows the current anti-cheat status of your server, along with an option to keep your clients up to date and a basic implementation of onPlayerModInfo to block modified img files.