Nex-AC - Anticheat system
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README.md

Download latest release (v1.9.41)

Nex-AC - Anticheat system

Nex Anticheat (Nex-AC) - is a comprehensive protection which combines powerful anticheat and protection against various attacks (flood, DoS).
Anticheat detects popular cheats instantly punishing cheaters.
Anti-DoS combines customizable anti-flood, anti-DoS at network level and a lot of protection tools against hacking, crashers etc.

List of basic anti-cheats:

  • Anti-AirBreak (onfoot/in vehicle)
  • Anti-teleport hack (onfoot/into/in/between vehicles)
  • Anti-teleport pickups
  • Anti-FlyHack (onfoot/in vehicle)
  • Anti-SpeedHack (onfoot/in vehicle)
  • Anti-Health hack (onfoot/in vehicle) and armour hack
  • Anti-Weapon hack and (add/infinite) ammo hack
  • Anti-Special actions hack (including jetpack)
  • Anti-GodMode from bullets (onfoot/in vehicle)
  • Anti-Invisible hack
  • Anti-Money hack
  • Anti-Tuning hack
  • Anti-lagcomp-spoof
  • Anti-Parkour mod
  • Anti-Quick turn
  • Anti-Rapid fire
  • Anti-FakeSpawn
  • Anti-FakeKill
  • Anti-Pro Aim
  • Anti-CJ run
  • Anti-CarShot
  • Anti-CarJack
  • Anti-UnFreeze
  • Anti-AFK Ghost
  • Anti-Reconnect
  • Anti-High ping
  • Anti-Fake NPC
  • Anti-Dialog hack
  • Protection from the sandbox
  • Protection against invalid version
  • Anti-flood change seat
  • Flood protection connects to one slot
  • Anti-Rcon hack (brute/brute-forse)
  • Anti-flood callback functions (complete list below)
  • Anti-crashers (complete list below)
  • Anti-NOP's (complete list below)
  • Anti-Dos

Additional features:

* Setting anticheat from file

The settings is located in a separate file (scriptfiles\nex-ac_settings.cfg)

* View statistics

Ability to view statistics of the anticheat while the server working since its launch
Displayed automatically when server turn off. Stored in a server log (server_log.txt)

* Logging the most important actions

Optionally you can enable debug-mode for log all actions

* Multilingual

Ability to set any of the available languages.
It also simplifies the translation of anticheat to other languages

List of publics which are protected by anti-flood:

  • OnDialogResponse
  • OnEnterExitModShop
  • OnPlayerClickMap
  • OnPlayerClickPlayer
  • OnPlayerClickTextDraw
  • OnPlayerCommandText
  • OnPlayerEnterVehicle
  • OnPlayerExitVehicle
  • OnPlayerPickUpPickup
  • OnPlayerRequestClass
  • OnPlayerSelectedMenuRow
  • OnPlayerStateChange
  • OnVehicleMod
  • OnVehiclePaintjob
  • OnVehicleRespray
  • OnVehicleDeath
  • OnPlayerText
  • OnPlayerEnterCheckpoint
  • OnPlayerLeaveCheckpoint
  • OnPlayerRequestSpawn
  • OnPlayerExitedMenu
  • OnPlayerEnterRaceCheckpoint
  • OnPlayerLeaveRaceCheckpoint
  • OnPlayerClickPlayerTextDraw
  • OnVehicleDamageStatusUpdate
  • OnPlayerSelectObject

Anti-NOP's:

  • SpawnPlayer
  • SetPlayerPos
  • SetVehiclePos
  • SetPlayerAmmo
  • SetPlayerHealth
  • SetPlayerArmour
  • SetVehicleHealth
  • GivePlayerWeapon
  • SetPlayerPosFindZ
  • SetPlayerInterior
  • PutPlayerInVehicle
  • ResetPlayerWeapons
  • SetPlayerArmedWeapon
  • SetPlayerSpecialAction
  • TogglePlayerSpectating
  • RemovePlayerFromVehicle

Anti-Crashers:

  • Invalid tuning
  • Invalid vehicle seat
  • Illegal characters in the dialogs (deleting)
  • Invalid attached objects
  • Weapon Crasher

Functions:

public OnCheatDetected(playerid, ip_address[], type, code)

Called when triggered one of the anti-cheats

  • playerid - ID of the cheater
  • ip_address[] - IP-address of the cheater
  • type - Type of cheating (when 0 it returns the ID, when 1 - IP)
  • code - Code (ID) of the anti-cheat

EnableAntiCheat(code, enable)

Use to enable/disable one of the anti-cheats

  • code - ID of the anti-cheat
  • enable - 1 to enable/0 to disable

EnableAntiCheatForPlayer(playerid, code, enable)

Use to enable/disable one of the anti-cheats for a particular player

  • playerid - ID of the player who needs to enable/disable the anti-cheat
  • code - ID of the anti-cheat
  • enable - 1 to enable/0 to disable

Added in v1.3:

IsAntiCheatEnabled(code)

Use to check whether one of the anti-cheats is enabled/disabled

  • code - ID of the anti-cheat
  • Return 1 (true) if enabled or 0 (false) if disabled

IsAntiCheatEnabledForPlayer(playerid, code)

Use to check whether one of the anti-cheats is enabled/disabled for a particular player

  • playerid - ID of the player to be checked whether the anti-cheat enabled/disabled for him
  • code - ID of the anti-cheat
  • Return 1 (true) if enabled or 0 (false) if disabled

Added in v1.8.8:

AntiCheatGetHealth(playerid, &Float:health)

Use to get the amount of a player's health

  • playerid - The ID of the player
  • &Float:health - Variable for storage health, passed by reference

AntiCheatGetArmour(playerid, &Float:armour)

Use to get the amount of a player's armour

  • playerid - The ID of the player
  • &Float:armour - Variable for storage armour, passed by reference

AntiCheatGetVehicleHealth(vehicleid, &Float:health)

Use to get the amount of a vehicle health

  • vehicleid - The ID of the vehicle
  • &Float:health - Variable for storage health, passed by reference

AntiCheatGetWeaponData(playerid, slot, &weapons, &ammo)

Use to get weapons and ammo in a certain slot of a player

  • playerid - The ID of the player
  • slot - The slot in which need get the weapons and ammo
  • &weapons - Variable for storage weapon ID, passed by reference
  • &ammo - Variable for storage amount of ammo, passed by reference

AntiCheatGetSpawnWeapon(playerid, &weapon1, &weapon1_ammo, &weapon2, &weapon2_ammo, &weapon3, &weapon3_ammo)

Use to get spawn weapons and ammo of a player

  • playerid - The ID of the player
  • &weapon1 - Variable for storage the weapon 1, passed by reference
  • &weapon1_ammo - The variable for storage the amount of ammo for the weapon 1, passed by reference
  • &weapon2 - Variable for storage the weapon 2, passed by reference
  • &weapon2_ammo - The variable for storage the amount of ammo for the weapon 2, passed by reference
  • &weapon3 - Variable for storage the weapon 3, passed by reference
  • &weapon3_ammo - The variable for storage the amount of ammo for the weapon 3, passed by reference

AntiCheatGetPos(playerid, &Float:x, &Float:y, &Float:z)

Use to get a player's position

  • playerid - The ID of the player
  • &Float:x - The variable for storage the x coordinate, passed by reference
  • &Float:y - The variable for storage the y coordinate, passed by reference
  • &Float:z - The variable for storage the z coordinate, passed by reference

AntiCheatGetVehicleVelocity(vehicleid, &Float:x, &Float:y, &Float:z)

Use to get a vehicle speed

  • vehicleid - The ID of the vehicle
  • &Float:x - The variable for storage the x speed, passed by reference
  • &Float:y - The variable for storage the y speed, passed by reference
  • &Float:z - The variable for storage the z speed, passed by reference

AntiCheatGetSpeed(playerid)

Use to get a player's speed

  • playerid - The ID of the player
  • Returns a player's speed or 0 if the player is not connected

AntiCheatGetAnimationIndex(playerid)

Use to get the index (ID) of a player's current animation

  • playerid - The ID of the player
  • Returns the ID of the animation or 0 if the player is not connected

AntiCheatGetDialog(playerid)

Use to get the ID of the opened dialog of a player

  • playerid - The ID of the player
  • Returns the ID of the dialog or -1 if the player is not connected

AntiCheatGetMoney(playerid)

Use to get the amount of a player's money

  • playerid - The ID of the player
  • Returns the amount of money or 0 if the player is not connected

AntiCheatGetEnterVehicle(playerid)

Use to get the ID of the vehicle which a player try to enter

  • playerid - The ID of the player
  • Returns the ID of the vehicle or 0 if the player is not connected

AntiCheatGetVehicleID(playerid)

Use to get the ID of the vehicle in which a player is in

  • playerid - The ID of the player
  • Returns the ID of the vehicle or 0 if the player is not connected

AntiCheatGetWeapon(playerid)

Use to get a player's current weapon ID

  • playerid - The ID of the player
  • Returns the ID of weapon or -1 if the player is not connected

AntiCheatGetVehicleSeat(playerid)

Use to get the seat in the vehicle on which the player is in

  • playerid - The ID of the player
  • Returns a number of the seat or -1 if the player is not connected

AntiCheatGetSpecialAction(playerid)

Use to get the ID of the special action of a player

  • playerid - The ID of the player
  • Returns the ID of the special action or 0 if the player is not connected

AntiCheatGetLastSpecialAction(playerid)

Use to get the ID of the previous special action of a player

  • playerid - The ID of the player
  • Returns the ID of the previous special action or 0 if the player is not connected

AntiCheatGetLastShotWeapon(playerid)

Use to get the ID of the last weapon from which a player shot

  • playerid - The ID of the player
  • Returns the ID of the last weapon or -1 if the player is not connected

AntiCheatGetLastPickup(playerid)

Use to get the ID of the last pickup which a player picked

  • playerid - The ID of the player
  • Returns the ID of the last picked up pickup or -1 if the player is not connected

AntiCheatGetLastUpdateTime(playerid)

Use to get a player's last update timestamp

  • playerid - The ID of the player
  • Returns a timestamp of the last update or 0 if the player is not connected

AntiCheatGetLastReloadTime(playerid)

Use to get a player's last (weapon) reload timestamp

  • playerid - The ID of the player
  • Returns a timestamp of the last reload or 0 if the player is not connected

AntiCheatGetLastEnteredVehTime(playerid)

Use to get a player's last entering vehicle attempt timestamp

  • playerid - The ID of the player
  • Returns a timestamp of the last entering attempt or 0 if the player is not connected

AntiCheatGetLastShotTime(playerid)

Use to get a player's last shot timestamp

  • playerid - The ID of the player
  • Returns a timestamp of the last shot or 0 if the player is not connected

AntiCheatGetLastSpawnTime(playerid)

Use to get a player's last spawn timestamp

  • playerid - The ID of the player
  • Returns a timestamp of the last spawn or 0 if the player is not connected

AntiCheatIntEnterExitsIsEnabled(playerid)

Use to check whether enter/exit markers in interiors are enabled/disabled for a player

  • playerid - The ID of the player
  • Returns 1 (true) if enabled or 0 (false) if disabled

AntiCheatStuntBonusIsEnabled(playerid)

Use to check whether stunt bonus is enabled/disabled for a player

  • playerid - The ID of the player
  • Returns 1 (true) if enabled or 0 (false) if disabled

AntiCheatIsInModShop(playerid)

Use to check whether a player is in ModShop or not

  • playerid - The ID of the player
  • Returns 1 (true) if it is or 0 (false) if it is not

AntiCheatIsFrozen(playerid)

Use to check whether a player is frozen or not

  • playerid - The ID of the player
  • Returns 1 (true) if frozen or 0 (false) if not frozen

AntiCheatIsDead(playerid)

Use to check whether a player is dead or not

  • playerid - The ID of the player
  • Returns 1 (true) if dead or 0 (false) if not dead

AntiCheatIsConnected(playerid)

Use to check whether a player is on a server or not

  • playerid - The ID of the player
  • Returns 1 (true) if it is or 0 (false) if it is not

Added in v1.9.37:

public OnCheatWarning(playerid, ip_address[], type, code, code2, count)

Called when triggered any warnings of one of the anti-cheats

  • playerid - ID of the suspected cheater
  • ip_address[] - IP-address of the suspected cheater
  • type - Type of cheating (when 0 it returns the ID, when 1 - IP)
  • code - Code (ID) of the anti-cheat
  • code2 - Sub-code (ID) of the anti-cheat check
  • count - Count of warnings triggered on suspected cheater

public OnFloodWarning(playerid, publicid, count)

Called when triggered any anti-flood warnings on one of the protected publics

  • playerid - ID of the suspected flooder
  • publicid - ID of the public that was called too quickly
  • count - Count of warnings triggered on suspected flooder

public OnNOPWarning(playerid, nopid, count)

Called when triggered any NOP warnings on one of the protected functions

  • playerid - ID of the suspected cheater
  • nopid - ID of the NOP check
  • count - Count of warnings triggered on suspected cheater

AntiCheatKickWithDesync(playerid, code)

Use to kick with desync a particular player by the anticheat

  • playerid - ID of the player who will be kicked with desync for the delay time
  • code - ID of the anti-cheat (with some codes the player's vehicle will be resynced after his disconnection)

AntiCheatIsKickedWithDecync(playerid)

Use to check whether a player is kicked or not

  • playerid - The ID of the player
  • Returns 1 for kick onfoot, 2 for kick in a vehicle (driver), 3 if player is already disconnected or 0 if he isn't kicked

Added in v1.9.40:

AntiCheatGetSpawnPos(playerid, &Float:x, &Float:y, &Float:z)

Use to get a player's spawn position

  • playerid - The ID of the player
  • &Float:x - The variable for storage the x coordinate, passed by reference
  • &Float:y - The variable for storage the y coordinate, passed by reference
  • &Float:z - The variable for storage the z coordinate, passed by reference

Added in v1.9.41:

EnableAntiNOP(nopcode, enable)

Use to enable/disable one of the anti-NOPs

  • nopcode - ID of the anti-NOP
  • enable - 1 to enable/0 to disable

EnableAntiNOPForPlayer(playerid, nopcode, enable)

Use to enable/disable one of the anti-NOPs for a particular player

  • playerid - ID of the player who needs to enable/disable the anti-NOP
  • nopcode - ID of the anti-NOP
  • enable - 1 to enable/0 to disable

IsAntiNOPEnabled(nopcode)

Use to check whether one of the anti-NOPs is enabled/disabled

  • nopcode - ID of the anti-NOP
  • Return 1 (true) if enabled or 0 (false) if disabled

IsAntiNOPEnabledForPlayer(playerid, nopcode)

Use to check whether one of the anti-NOPs is enabled/disabled for a particular player

  • playerid - ID of the player to be checked whether the anti-NOP enabled/disabled for him
  • nopcode - ID of the anti-NOP
  • Return 1 (true) if enabled or 0 (false) if disabled

Multilingual:

The script can be configured at any of the available languages. To do it, just download the desired localization, save it in a directory with the main include (nex_ac.inc) and recompile your script.

It is also recommended to check on use any other anti-cheats in order to avoid conflicts with them.

Installation:

  1. Download version of the anticheat which compatible with the version of your server
  2. Download the language file (.lang) in your preferred language
  3. Copy both files to a folder "/pawno/include" which is located in the folder with the server
  4. In gamemode and all filterscripts after #include "a_samp" write the following: #include "nex-ac"
    Warning! If you use Streamer Plugin by Incognito, Timerfix plugin by Dan, foreach, sscanf, Pawn.RakNet or y_hooks, include it before nex-ac!
    Also keep in mind that filterscript must have "#define FILTERSCRIPT" before including anticheat
  5. Compile the modified scripts

Do you get an error when you compiling this anticheat with YSI? Check out some tips

Thanks:

  • Magic_York, Roberto_York, TheHero, Nike_33, Vitalik_Gonsor, Mix_Rargard, Unisheld, f0Re3t - testing
  • ZiGGi, Urukhay, Yashas, theYiin, RaefaldhiAmartya, PatchwerkQWER, kvann, rt-2 - advices on the code
  • Carper - German translation
  • Jstylezzz - Dutch translation
  • J4Rr3x, Sasino97 - Italian translation
  • Alex Westbrook, JustBored - Spanish translation
  • lashona, ArthourP, DAKYSKYE - Georgian translation
  • wampiros6 - Polish translation
  • DeitY, Dragony92 - Serbian translation
  • NicK_ - PT/BR translation
  • KyleSmith - Improved English translation
  • M4D - Persian (Farsi) Translation
  • Valera_Kovshikov - Ukrainian translation
  • RaefaldhiAmartya - Indonesian translation
  • vannesenn - Croatian translation
  • j3rry, vic1997 - French translation
  • zaibaslr2 - Lithuanian translation
  • UnforgiveNNN - Romanian translation
  • Pedro. - Hungarian translation
  • Ben_Lovejoy - Finnish translation
  • Rengar - Latvian translation
  • bgedition - Bulgarian translation
  • Jensenn - Turkish translation
  • Sanady - Slovak translation
  • Grig - Armenian translation
  • SooBad - Czech translation
  • OldPawn - Estonian translation
  • Negativ_Tm - Turkmen translation
  • Trung.Tin - Vietnamese translation
  • willbedie - Albanian translation
  • aktah - Thai translation

This script also contains materials of third-party projects with open source.

P.s. I develop this anticheat about a year and spent on it a lot of effort and time. I hope very much that it will be useful to you.

Enjoy!