Download latest release (v1.9.52)

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 sandbox
• Protection from invalid version
• Protection from flood by seat changing
• Protection from connection flood in one slot
• Anti-Rcon hack (brute/brute-force)
• Anti-callback functions flood (complete list below)
• Anti-crashers (complete list below)
• Anti-NOPs (complete list below)
• Anti-DoS

Additional features:

* Setting anticheat from file

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

* Statistics viewing

Ability to view statistics of the anticheat for all the time of server work since its launch Displayed automatically when the server turns off. Stored in a server log (server_log.txt)

* Logging the most important actions

Optionally, you can enable debug-mode for logging all actions

* Multilingual

Ability to set any of the available languages.
It also simplifies the process of translation of anticheat into 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-NOPs:

• SpawnPlayer
• SetPlayerPos
• SetVehiclePos
• SetPlayerAmmo
• SetPlayerHealth
• SetPlayerArmour
• SetVehicleHealth
• GivePlayerWeapon
• SetPlayerPosFindZ
• SetPlayerInterior
• PutPlayerInVehicle
• ResetPlayerWeapons
• 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 triggers one of the anti-cheats

• playerid - The 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 - The code (ID) of the anti-cheat
• This callback does not handle returns

EnableAntiCheat(code, enable)

Use to enable/disable one of the anti-cheats

• code - The ID of the anti-cheat
• enable - 1 to enable/0 to disable
• Returns 1 (true) if the function executed successfully or 0 (false) if the code parameter contains an invalid ID of the anti-cheat

EnableAntiCheatForPlayer(playerid, code, enable)

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

• playerid - The ID of the player to enable/disable the anti-cheat for
• code - The ID of the anti-cheat
• enable - 1 to enable/0 to disable
• Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the code parameter contains an invalid ID of the anti-cheat

Added in v1.3:

IsAntiCheatEnabled(code)

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

• code - The ID of the anti-cheat to check
• 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 specific player

• playerid - The ID of the player to be checked whether the anti-cheat enabled/disabled for him
• code - The ID of the anti-cheat to check
• 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 the player's health

• playerid - The ID of the player to get the health of
• &Float:health - A variable to store the health in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetArmour(playerid, &Float:armour)

Use to get the amount of the player's armour

• playerid - The ID of the player to get the armour of
• &Float:armour - A variable to store the armour in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetVehicleHealth(vehicleid, &Float:health)

Use to get the amount of the vehicle's health

• vehicleid - The ID of the vehicle to get the health of
• &Float:health - A variable to store the health in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

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

Use to get the weapon and ammo in a specific player's weapon slot

• playerid - The ID of the player whose weapon data to retrieve
• slot - The slot to get the weapon and ammo for
• &weapons - A variable to store the weapon ID in, passed by reference
• &ammo - A variable to store the ammo in, passed by reference
• Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the slot specified is invalid

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 whose spawn weapons and ammo to retrieve
• &weapon1 - A variable in which to store the weapon 1, passed by reference
• &weapon1_ammo - A variable in which to store the amount of ammo for the weapon 1, passed by reference
• &weapon2 - A variable in which to store the weapon 2, passed by reference
• &weapon2_ammo - A variable in which to store the amount of ammo for the weapon 2, passed by reference
• &weapon3 - A variable in which to store the weapon 3, passed by reference
• &weapon3_ammo - A variable in which to store the amount of ammo for the weapon 3, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

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

Use to get the position of a player

• playerid - The ID of the player to get the position of
• &Float:x - A variable to store the x coordinate in, passed by reference
• &Float:y - A variable to store the y coordinate in, passed by reference
• &Float:z - A variable to store the z coordinate in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

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

Use to get the velocity of a vehicle

• vehicleid - The ID of the vehicle to get the velocity of
• &Float:x - A variable to store the x velocity in, passed by reference
• &Float:y - A variable to store the y velocity in, passed by reference
• &Float:z - A variable to store the z velocity in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetSpeed(playerid)

Use to get the speed of a player

• playerid - The ID of the player to get the speed of
• Returns the 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 to get the animation index of
• 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 to get the active dialog ID of
• Returns the ID of the dialog or -1 if the player is not connected

AntiCheatGetEnterVehicle(playerid)

Use to get the ID of the vehicle the player attempted to enter last time

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

AntiCheatGetVehicleID(playerid)

Use to get the ID of the vehicle the player is currently in

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

AntiCheatGetWeapon(playerid)

Use to get the current weapon ID of a player

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

AntiCheatGetVehicleSeat(playerid)

Use to get the seat of the vehicle the player is currently in

• playerid - The ID of the player to get the seat of
• Returns the ID 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 to get the special action of
• 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 to get the previous special action of
• 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 the player shot from

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

AntiCheatGetLastPickup(playerid)

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

• playerid - The ID of the player to get the last picked up pickup ID of
• 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 tick

• playerid - The ID of the player to get the last update tick of
• Returns the tick of the last update or 0 if the player is not connected

AntiCheatGetLastReloadTime(playerid)

Use to get a player's last weapon reload tick

• playerid - The ID of the player to get the last reload tick of
• Returns the tick of the last reload or 0 if the player is not connected

AntiCheatGetLastEnteredVehTime(playerid)

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

• playerid - The ID of the player to get the last entering vehicle attempt tick of
• Returns the tick of the last entering attempt or 0 if the player is not connected

AntiCheatGetLastShotTime(playerid)

Use to get a player's last weapon shot tick

• playerid - The ID of the player to get the last shot tick of
• Returns the tick of the last shot or 0 if the player is not connected

AntiCheatGetLastSpawnTime(playerid)

Use to get a player's last spawn tick

• playerid - The ID of the player to get the last spawn tick of
• Returns the tick of the last spawn or 0 if the player is not connected

AntiCheatIntEnterExitsIsEnabled(playerid)

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

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

AntiCheatIsConnected(playerid)

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

• playerid - The ID of the player to check
• 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 triggers any warnings of one of the anti-cheats

• playerid - The 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 - The code (ID) of the anti-cheat
• code2 - The subcode (ID) of the anti-cheat check
• count - Count of warnings triggered on suspected cheater
• This callback does not handle returns

public OnFloodWarning(playerid, publicid, count)

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

• playerid - The ID of the suspected flooder
• publicid - The ID of the public that was called too quickly
• count - Count of warnings triggered on suspected flooder
• This callback does not handle returns

public OnNOPWarning(playerid, nopid, count)

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

• playerid - The ID of the suspected cheater
• nopid - The ID of the NOP check
• count - Count of warnings triggered on suspected cheater
• This callback does not handle returns

AntiCheatKickWithDesync(playerid, code)

Use to kick with desync a specific player by the anticheat

• playerid - The ID of the player who will be kicked with desync for the delay time
• code - The ID of the anti-cheat (with some codes the player's vehicle will be resynced after his disconnection)
• Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the player has already been kicked

AntiCheatIsKickedWithDesync(playerid)

Use to check whether a player is (being) kicked or not

• playerid - The ID of the player to check
• 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 the spawn position of a player

• playerid - The ID of the player to get the spawn position of
• &Float:x - A variable to store the x coordinate in, passed by reference
• &Float:y - A variable to store the y coordinate in, passed by reference
• &Float:z - A variable to store the z coordinate in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

Added in v1.9.41:

EnableAntiNOP(nopcode, enable)

Use to enable/disable one of the anti-NOPs

• nopcode - The ID of the anti-NOP
• enable - 1 to enable/0 to disable
• Returns 1 (true) if the function executed successfully or 0 (false) if the nopcode parameter contains an invalid ID of the anti-NOP

EnableAntiNOPForPlayer(playerid, nopcode, enable)

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

• playerid - The ID of the player to enable/disable the anti-NOP for
• nopcode - The ID of the anti-NOP
• enable - 1 to enable/0 to disable
• Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the nopcode parameter contains an invalid ID of the anti-NOP

IsAntiNOPEnabled(nopcode)

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

• nopcode - The ID of the anti-NOP to check
• 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 specific player

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

Added in v1.9.42:

AntiCheatGetVehicleDriver(vehicleid)

Use to get the ID of the driver ID of the vehicle

• vehicleid - The ID of the vehicle to get the driver ID of
• Returns the ID of the driver or INVALID_PLAYER_ID if the vehicle does not exist

AntiCheatGetVehicleInterior(vehicleid)

Use to get the ID of the current interior ID of the vehicle

• vehicleid - The ID of the vehicle to get the interior ID of
• Returns the ID of the interior or 0 if the vehicle does not exist

AntiCheatGetVehiclePaintjob(vehicleid)

Use to get the ID of the paintjob ID of the vehicle

• vehicleid - The ID of the vehicle to get the paintjob ID of
• Returns the ID of the paintjob or 3 if the vehicle does not exist

Added in v1.9.43:

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

Use to get the position of a vehicle

• vehicleid - The ID of the vehicle to get the position of
• &Float:x - A variable to store the x coordinate in, passed by reference
• &Float:y - A variable to store the y coordinate in, passed by reference
• &Float:z - A variable to store the z coordinate in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetVehicleZAngle(vehicleid, &Float:z_angle)

Use to get the z rotation of a vehicle

• vehicleid - The ID of the vehicle to get the z rotation of
• &Float:z_angle - A variable to store the z rotation in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

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

Use to get the spawn position of a vehicle

• vehicleid - The ID of the vehicle to get the spawn position of
• &Float:x - A variable to store the x coordinate in, passed by reference
• &Float:y - A variable to store the y coordinate in, passed by reference
• &Float:z - A variable to store the z coordinate in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetVehicleSpawnZAngle(vehicleid, &Float:z_angle)

Use to get the spawn z rotation of a vehicle

• vehicleid - The ID of the vehicle to get the spawn z rotation of
• &Float:z_angle - A variable to store the z rotation in, passed by reference
• Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

Added in v1.9.46:

AntiCheatGetInterior(playerid)

Use to get the ID of the interior the player is currently in

• playerid - The ID of the player to get the interior ID of
• Returns the ID of the interior or 0 if the player is not connected

Added in v1.9.50:

AntiCheatGetEnterVehicleSeat(playerid)

Use to get the seat of the vehicle the player attempted to enter last time

• playerid - The ID of the player to get the last entered seat of
• Returns the ID of the entered seat or -1 if the player is not connected

AntiCheatGetWeaponInSlot(playerid, slot)

Use to get the weapon ID in a specific player's weapon slot

• playerid - The ID of the player to get the weapon ID of
• slot - The slot to get the weapon ID for
• Returns the ID of weapon in a specific slot, -1 if the player is not connected or -2 if the slot specified is invalid

AntiCheatGetAmmoInSlot(playerid, slot)

Use to get the ammo in a specific player's weapon slot

• playerid - The ID of the player to get the ammo of
• slot - The slot to get the ammo for
• Returns the amount of ammo in a specific slot, -1 if the player is not connected or -2 if the slot specified is invalid

AntiCheatIsInSpectate(playerid)

Use to check whether a player is in spectator mode or not

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

AntiCheatGetVehicleSpeed(vehicleid)

Use to get the speed of a vehicle

• vehicleid - The ID of the vehicle to get the speed of
• Returns the vehicle speed or 0 if the vehicle does not exist

AntiCheatIsVehicleSpawned(vehicleid)

Use to check whether a vehicle is spawned or not

• vehicleid - The ID of the vehicle to check
• Returns 1 (true) if it is or 0 (false) if it is not

Multilingual:

The script can be configured in 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.

• .lang files can be opened even in default notepad and easily edited

It is also recommended to check for using any other anticheats 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 a 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, Pawn.RakNet, foreach, sscanf, YSF or SKY, include it before nex-ac!
   Also keep in mind that filterscript must have "#define FILTERSCRIPT" before including the anticheat
5. Compile the modified scripts

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, infin1tyy - 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
• Michael.Richmond - Moldavian translation
• NemanjaMAX - Bosnian translation

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

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

Enjoy!