AnthChecker v1.27

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1) What is it?

————–

AnthChecker is an advanced unrealscript-based packagechecker. It will detect

a series of cheats that can’t be blocked.

Please take a few minutes to read this document, it will spare you and me a lot

of trouble.

2) What does it do?

——————-

AnthChecker will validate every client (including clients that run Linux/MacOS)

after they enter the server. Depending on the server’s settings AnthChecker will:

* Perform selfchecks to prevent clients from redirecting/bypassing the

checking routines

* Perform CRC (Type 1) checks on files that should be identical on the

server and on the client (files like UTPure.u)

* Perform CRC (Type 2) checks to identify the client’s skintextures and

kick if they’re hacked

* Perform MD5 checks to identify the client’s renderdevice and kick if

it’s hacked

* Scan for disallowed files (such as OpenGL32.dll)

3) Installation

—————

To install AnthChecker on your server:

1. Unzip the contents of this zip package in your server’s system folder.

2. Open your server’s unrealtournament.ini file and find the line that reads “[Engine.GameEngine]”.

3. Add these lines under it:

ServerActors=AnthCheckerS_v127.ACActor

ServerPackages=AnthCheckerC_v127

4. Move to the end of your UT.ini file and add these lines

(you can find the explanation of the settings under 4) Settings):

[AnthCheckerS_v127.ACActor]

bKickUnknown=false

bBroadCastJoin=true

bBroadCastIPs=false

bSelfCheck=true

bPureCheck=true

bSkinCheck=true

bSoundCheck=true

bShowConsoleMessages=true

bGUIDCheck=true

TimeOut=30

bReportCheats=True

bReceiveUpdates=True

Packages[0]=

Packages[1]=

Packages[2]=

Packages[3]=

Packages[4]=

Packages[5]=

Packages[6]=

Packages[7]=

Packages[8]=

Packages[9]=

LogPrefix=

LogPath=

5. Restart your server

4) Settings

———–

You can easily change the AnthChecker settings by opening your server’s ini file and changing

the lines you added at the end.

bKickUnknown : set to true if you want to kick clients with an unknown renderdevice

bBroadCastJoin : set to false if you don’t want to broadcast every client’s nickname/renderdevice/operating system after the validation

bBroadCastIPs : set to true if you want to add the client’s IP’s to the bBroadCastJoin messages

bSelfCheck : set to false if you don’t want to perform a crc check on the anthchecker client package

bPureCheck : set to false if you don’t want to perform a crc check on the utpure package

bSkinCheck : set to false if you don’t want to perform crc checks on the skintextures

bSoundCheck : set to false if you don’t want to perform a crc check on the female2voice package

bShowConsoleMessages : set to false if you don’t want to display what’s going on in the client’s console

bReceiveUpdates : set to false if you don’t want to receive info about new renderdevices from the AnthChecker

masterserver. when set to true, AnthChecker will also receive notifications about new versions

bReportCheats : set to false if you don’t want AnthChecker to report cheating attempts to the AnthChecker masterserver

bGUIDCheck : set to false if you don’t want to verify the client’s AnthChecker GUID

TimeOut : ammount of time the client gets to finish the checks (in seconds)

Packages[x] : you can manually add files to crc (type 1) check here

syntax: ,, (*)

LogPrefix : Prefix of the external logfiles (default: [AC])

LogPath : The path in which the external logfiles are stored (default: ../Logs/)

!! Important !!: Due to the limitations of the unreal engine, you're not advised to manually add files.

If you do decide to do so, use a small packagepercent, UT will usually crash after crc checking

10Mb of data.

(*) if for example you want to perform a crc type 1 check on the 10 first bytes of every 255-byte block of CTF-Gauntlet.unr,

you'd have to add "unr,CTF-Gauntlet,10" (without the quotes)

5) History

----------

v1.27 (Public):

* [Fixed] Players getting kicktype 8 because of the slow connection between the UT server and the masterserver

* [Fixed] Illegal GUID's for linux clients with v451

* [Changed] Linux/Mac Cachecleaner can move multiple files at one time

v1.26 (Internal):

* [Added] Routine to find cached files even when the cache.ini file is corrupted

* [Added] Option bBroadCastIPs

* [Added] AnthChecker version gets logged to the external logs

* [Changed] Players get to see the URL of my forum + AnthChecker version/build when they get kicked

v1.25 (Internal) :

* [Added] Extra GUID check

v1.24 (Internal) :

* [Fixed] bug in masterserver encryption

* [Fixed] bug in the skinidentification (players with unknown skins were allowed to enter the server)

* [Fixed] Linux/Mac timeouts

* [Fixed] Critical bug that broke every mutator loaded after AnthChecker (this also affected SmartCTF/BDBMapVote/3dfxmapvote/...)

* [Fixed] bug that caused a lot of type 1 kicks (failed to generate checksum) for cached files (only happened for clients with corrupted cache.ini files)

* [Added] options LogPath and LogPrefix for the external logs

* [Added] Support for clients that have multiple system/textures/... folders

* [Added] Blocked "EnhancedSkins"

* [Added] New hashes for several renderers

* [Added] GUID verification (so far, this is only used for the masterserver)

* [Added] AnthChecker automaticly adds itself to the serverpackages list if needed

* [Changed] names of the Ref1 skins to Ref 1/Warez

v1.23 (Public) :

* First public release

6) Thanks to

------------

- Azazel & UnrealAdmin : for hosting the UTGL masterserver and my forum

- Nuffy & Magma : for providing gamearena.co.uk betatest servers

- Cratos : for providing renderdevices and a betatest server

- TNSe : for the MacOS and unrealscript lessons

- Obsidian : for linux betatesting

- Rush : for slackware linux betatesting

- Meta & Neopythe : for gentoo linux betatesting

- ZorroTheFox : for MacOS betatesting

- Petr Jelinek : for the original MD5 code</pre>