NoCheatPlus

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NoCheatPlus

Detect and fight the exploitation of various flaws/bugs in Minecraft!

Features Permissions Commands Configuration Jenkins

NOW! With Minecraft 1.10 support! (on Jenkins)

Quick overview: NCP by version of Minecraft
(Links may lead to downloads not approved by BukkitDev staff, use at your own risk.)
GitHub Issue for 1.10 progress (overview)

Introduction

NoCheatPlus attempts to prevent cheat clients from exploiting weaknesses of Minecraft or its protocol, making your server more safe. Checks cover a wide range of issues including flying and speeding, fighting hacks, fast block breaking and nukers, inventory hacks, chat spam and other types of malicious behaviour. For a more complete list have a look at the Features Page.

NoCheatPlus puts emphasis on configurability and allows you to customize actions that are carried out when a player fails a check (e.g. silent cancelling, executing commands, just logging). Bypass permissions allow to control what check to apply for which players, all checks can be deactivated in the configuration, also having the option for world-specific configuration files. Many checks allow more detailed configuration to adjust sensitivity.

Certainly NoCheatPlus is not a magical bullet, it uses a lot of heuristics and even guessing, so you will encounter false positives here and there and also not catch every single violation. Example video of how NoCheatPlus blocks cheats (outdated plugin version).

NoCheatPlus was introduced by NeatMonster, building on the code base of NoCheat by Evenprime.

The following plugins might be useful to have a look at.

ProtocolLib

Allows NoCheatPlus to activate packet-level checks, covering a range of exploits that can't be monitored using ordinary means. Since roughly Minecraft 1.7.10, the fight.speed check can't work as expected anymore, due to changes in CraftBukkit. With ProtocolLib this can be repaired.

CompatNoCheatPlus (cncp)

Make plugins like mcMMO, Citizens, MagicSpells or MachinaCraft more compatbile with NoCheatPlus. Not all existing plugins are covered (yet), but you can leave a note or create an issue/ticket request for cncp.

Orebfuscator

Orebfuscator fights all sorts of X-ray-hacks by altering the map information that is sent to the players, such that they have to mine blocks to actually reveal what is behind. Virtually a "must have". (Latest versions of Spigot contain features of Orebfuscator.)

Downloads and History of Changes

Support

Documentation Resources

Contact us

  • Quick questions can be asked on this page,
    or on IRC (Server: irc.spi.gt | Default-Port: 6667 | SSL-Port: 6697 | Channel: #nocheat | Web client: WebIRC)
  • For real issues or feature requests please create a new issue/ticket or add to an existing issue/ticket.
  • To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. @IceAP (IRC: ICE) will also help or redirect the conversation. Please do not contact the user 'NoCheatPlus', it is for administrative purposes only and will likely not be answered in time. Keep to BukkitDev and GitHub for support, do not trust users on other forums or websites, also not if their nick names are the same as NCP staff on BukkitDev.

Please always state the output of the "ncp version" command to let us know versions in use (users of cncp also the "cncp" command).

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  • Avatar of asofold asofold Feb 28, 2014 at 09:29 UTC - 0 likes

    @LihPeu: Go

    The movie seems broken.

    Maybe it is related to Ticket 705 ?

    BFAK:asofold,90573112,4305cd44b773216e4e4b4865b3831dcc3c507c15087fb5cfeebd9392050724fc

    NoCheatPlus
    Latest beta release (1.8.x, this site) 3.13.0-BETA-sMD5NET-b878
    (Development builds, 1.8.x: Jenkins)

  • Avatar of LihPeu LihPeu Feb 27, 2014 at 12:49 UTC - 0 likes

    Hey,

    A hack has recently been brought to my attention and I wonder if you know what it's called, I have a video that a player recorded for me below.

    Tthe hacking player is disguised as a wolf for purposes of the game mode and his health can be seen on the bar at the top of the screen. Once the player reaches low health the hack client automatically makes him invaluable and he appears to glitch up and down while his health regenerates.

    https://www.youtube.com/watch?v=mOeORGpLxW4

  • Avatar of asofold asofold Feb 27, 2014 at 08:13 UTC - 0 likes

    @X00LA: Go

    The first is about blocks that NCP can not know, so NCP does not have data about how fast they can be broken or how to treat the blocks for collision-checking.

    The ingame messages are probably due to [MoCreatures] using a Player to implement NPC functionality. Are there any "helper" or "pet" creatures that do something like block breaking for the player?

  • Avatar of X00LA X00LA Feb 27, 2014 at 07:00 UTC - 0 likes

    @asofold

    I get this at startup:

    07:52:04 CONSOLE: command customspawner with permission node drzhark.customspawner.command.CommandCMS
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 185(MoCreatures:MoCTallGrass / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 186(MoCreatures:MoCWoodPlank / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 187(reaper_lantern:reaper_lanterntile.light / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 188(more:CopperOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 189(more:TinOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 190(more:UranOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 191(more:RubyOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 192(more:SapphireOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 193(more:SilverOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 194(more:ChromeOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 195(more:ChromeEndOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 196(more:PlatinumOre / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 197(more:InventorTable / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 198(more:BlockCopper / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 199(more:BlockTin / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 200(more:BlockUran / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 201(more:BlockBronze / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 202(more:BlockTitan / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 203(more:BlockSapphire / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 204(more:BlockRuby / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 205(more:BlockMeteorite / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 206(more:BlockGranite / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 207(more:BlockRedGranite / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 208(more:BlockRedGraniteDec1 / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 209(more:BlockRedGraniteDec2 / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 210(more:BlockGraniteDec1 / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 211(more:BlockGraniteDec2 / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    07:52:05 CONSOLE: MISSING 212(more:UranTnt / IGN_PASSABLE)
    07:52:05 CONSOLE: 2014 7:52:04 AM fr.neatmonster.nocheatplus.logging.LogUtil log
    

    And this is the Message I get about MoCreatures:

    [MoCreatures] scheiterte bei FastBreak: Versuchte Blöcke (0) schneller als möglich zu brechen. Verstoß: 36893488147419096.
    [MoCreatures] scheiterte bei WrongBlock: Brach einen anderen Block als den angeklickten. Verstoß: 33.
    [MoCreatures] scheiterte bei WrongBlock: Brach einen anderen Block als den angeklickten. Verstoß: 62.
    [MoCreatures] scheiterte bei WrongBlock: Brach einen anderen Block als den angeklickten. Verstoß: 83.
    [MoCreatures] scheiterte bei WrongBlock: Brach einen anderen Block als den angeklickten. Verstoß: 75.
    

    Sorry, it's in german because I translated the plugin.

    This Messages spaming my complete console.

    Regards

    Last edited Feb 27, 2014 by X00LA
  • Avatar of asofold asofold Feb 26, 2014 at 21:59 UTC - 0 likes

    @StreetkillnHD: Go

    Please check if Ticket 677 matches your issues.

    @X00LA: Go

    What is the text of the messages in chat? What kind of creatures is it about?

    @NoChanceSD: Go

    Can you post full output of the "ncp version" command, and maybe pm a plugin list? I would like to keep track. We might open a ticket some time soon to concentrate information there.

    @MarioG1: Go

    That seems likely, i noticed a hilarious violation level for few or even just one action.

  • Avatar of MarioG1 MarioG1 Feb 26, 2014 at 20:16 UTC - 0 likes

    @NoChanceSD: Go

    I think something is wrong with the VL calculation of the block breaking out of sync check because i get very high VL's like 1073741120 .

    The VL's aren't caused by hacking because if a player would use a hack I would get spammed with NCP alerts but i get the alert only one time.

    ETG Clan

    Visit us at www.etg-clan.at

  • Avatar of NoChanceSD NoChanceSD Feb 26, 2014 at 17:03 UTC - 0 likes

    I got the same problem as horsetears, players getting kicked a lot by block breaking out of synch, only happened after i updated to the latest version here.

  • Avatar of X00LA X00LA Feb 26, 2014 at 08:26 UTC - 0 likes

    Hi,

    I use your plugin with MCPC+ and MoCreatures on my server. The issue I have is, that i get chatmessages when a MoCreatures creature breaks a block. My question is, how I can disable this messages from MoCreatures.

    Regards

  • Avatar of StreetkillnHD StreetkillnHD Feb 25, 2014 at 20:59 UTC - 0 likes

    i think doors interaction is bugged players have issues opening and closing doors sometimes

  • Avatar of asofold asofold Feb 25, 2014 at 09:59 UTC - 0 likes

    @Bodyash: Go

    I think we should push this into a ticket, keeping track here should become difficult. Please continue discussion in Ticket 712.

Facts

Date created
Apr 02, 2012
Categories
Last update
Jan 31, 2016
Development stage
Release
License
GNU General Public License version 3 (GPLv3)
Curse link
NoCheatPlus
Reverse relationships
5
Downloads
1,531,798
Recent files

Authors

Relationships

Optional dependency
ProtocolLib