Main CheckSum.dat Generator

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01-09-08
RedMG

Re: [Release] Main CheckSum.dat Generator

I created a CheckSum.dat and copied it to Kor folder. I also edited my GS.exe as you said,Deathway. But i got DC....:'(
10-11-08
D9IDbKA

Re: [Release] Main CheckSum.dat Generator

10/10
18-11-08
Young

Re: [Release] Main CheckSum.dat Generator

Nice release Deathway. Work perfectely on 0.99.60T GS (1.0H). Somebody have tested on 0.99.28 GS (99b+) ? The function exist and on log shows that receive the client Checskum packets but dont match, making disconnect every time. Thanks.
26-12-08
Booms

Re: [Release] Main CheckSum.dat Generator

Easy and Clean !!
with other main, i kicked with Send/Dont send error window :)
(GS 1.00.18)
Thanks very usefull.
11-01-10
unnament

Re: Main CheckSum.dat Generator

anyone can reupload file?
12-01-10
Annaev

Re: Main CheckSum.dat Generator

Quote:

Originally Posted by unnament

anyone can reupload file?

ftp://muguard.com/pub/muguard/MainChecksum.exe
13-01-10
Shagoon

Re: Main CheckSum.dat Generator

Mirror Link:
Main CheckSum.dat Generator - SeeItWorks .COM Download Center

...
09-03-10
orchangelX1412

Re: Main CheckSum.dat Generator

Useful :)

Approved.
09-03-10
dannythe

Re: Main CheckSum.dat Generator

My GS is strange,It disconnects those who have the right main and lets everyone else to connect in game.. ???
23-03-10
rlwrlw

Re: Main CheckSum.dat Generator

i activated checksum created .dat put it on right place but i'm getting dc now gs shows checksum error on main...

main 1.04d
gs 1.00.16 39 luciano
18-07-10
Shaktale

Re: Main CheckSum.dat Generator

I have checksum activated server side, and made the .dat, but my main is not sending any checksum to the server.

Any ideas?
18-07-10
energ

Re: Main CheckSum.dat Generator

i found error-L1 : [%s][%s] CheckSum-Exe error but what im supposed to do now ? how to find this command and etc [CODE]00431C38 |. /74 5C JE SHORT GameServ.00431C96

Quote:

Originally Posted by Deathway

This time i present a new way to prevent main modding - cracking, to use this you must know some asm knowledge.

Level of Protection against crack - weak-medium

How to use it:

1.- Download the File
RapidShare: 1-CLICK Web hosting - Easy Filehosting

2.- Open your main.exe and click generate. After some minutes it will produce the CheckSum.dat file (YES the program works VERY SLOW)

3.- Paste that file on lang\jpn folder in my case ( in your could be lang\kor : according to your Language set on commonserver.cfg)

4.- Fix the GS

The function CGCheckMainRecv should be like this ( in case that gs don't have PDB you should search with Search all referenced strings and find "error-L1 : [%s][%s] CheckSum-Exe error " (in case of GS-JPN)

Code:

CGCheckMa>/> \55 PUSH EBP 00431B61 |. 8BEC MOV EBP,ESP 00431B63 |. 83EC 40 SUB ESP,40 00431B66 |. 53 PUSH EBX 00431B67 |. 56 PUSH ESI 00431B68 |. 57 PUSH EDI ; ntdll.7C910738 00431B69 |. 68 B8536B00 PUSH OFFSET GameServ.??_C@_0P@HPBC@218?4>; /s2 = "218.234.76.254" 00431B6E |. 8B45 0C MOV EAX,[ARG.aIndex] ; | 00431B71 |. 69C0 68190000 IMUL EAX,EAX,1968 ; | 00431B77 |. 05 90F06006 ADD EAX,GameServ.0660F090 ; | 00431B7C |. 50 PUSH EAX ; |s1 = NULL 00431B7D |. E8 DE771600 CALL GameServ._strcmp ; \_strcmp 00431B82 |. 83C4 08 ADD ESP,8 00431B85 |. 85C0 TEST EAX,EAX 00431B87 |. 75 28 JNZ SHORT GameServ.00431BB1 00431B89 |. 8B4D 0C MOV ECX,[ARG.aIndex] 00431B8C |. 69C9 68190000 IMUL ECX,ECX,1968 00431B92 |. C781 D8F06006>MOV DWORD PTR DS:[ECX+660F0D8],0 00431B9C |. 8B55 0C MOV EDX,[ARG.aIndex] 00431B9F |. 69D2 68190000 IMUL EDX,EDX,1968 ; ntdll.KiFastSystemCallRet 00431BA5 |. C682 B9FF6006>MOV BYTE PTR DS:[EDX+660FFB9],1 00431BAC |. E9 F8000000 JMP GameServ.00431CA9 00431BB1 |> 8B45 0C MOV EAX,[ARG.aIndex] 00431BB4 |. 69C0 68190000 IMUL EAX,EAX,1968 00431BBA |. 0FBF88 D4F060>MOVSX ECX,WORD PTR DS:[EAX+660F0D4] 00431BC1 |. 85C9 TEST ECX,ECX 00431BC3 |. 7C 17 JL SHORT GameServ.00431BDC 00431BC5 |. 8B55 0C MOV EDX,[ARG.aIndex] 00431BC8 |. 69D2 68190000 IMUL EDX,EDX,1968 ; ntdll.KiFastSystemCallRet 00431BCE |. 0FBF82 D4F060>MOVSX EAX,WORD PTR DS:[EDX+660F0D4] 00431BD5 |. 3D FF030000 CMP EAX,3FF 00431BDA |. 7E 3F JLE SHORT GameServ.00431C1B 00431BDC |> 8B4D 0C MOV ECX,[ARG.aIndex] 00431BDF |. 69C9 68190000 IMUL ECX,ECX,1968 00431BE5 |. 81C1 EBF06006 ADD ECX,GameServ.0660F0EB 00431BEB |. 51 PUSH ECX 00431BEC |. 8B55 0C MOV EDX,[ARG.aIndex] 00431BEF |. 69D2 68190000 IMUL EDX,EDX,1968 ; ntdll.KiFastSystemCallRet 00431BF5 |. 81C2 E0F06006 ADD EDX,GameServ.0660F0E0 00431BFB |. 52 PUSH EDX ; ntdll.KiFastSystemCallRet 00431BFC |. 68 88536B00 PUSH OFFSET GameServ.??_C@_0CI@DJHJ@erro>; ASCII "error-L1 : [%s][%s] CheckSum-Exe error " 00431C01 |. FF15 34993506 CALL DWORD PTR DS:[LogAdd] 00431C07 |. 83C4 0C ADD ESP,0C 00431C0A |. 8B45 0C MOV EAX,[ARG.aIndex] 00431C0D |. 50 PUSH EAX 00431C0E |. E8 33F4FCFF CALL GameServ.00401046 00431C13 |. 83C4 04 ADD ESP,4 00431C16 |. E9 8E000000 JMP GameServ.00431CA9 00431C1B |> 8B4D 0C MOV ECX,[ARG.aIndex] 00431C1E |. 69C9 68190000 IMUL ECX,ECX,1968 00431C24 |. 0FBF91 D4F060>MOVSX EDX,WORD PTR DS:[ECX+660F0D4] 00431C2B |. 8B45 08 MOV EAX,[ARG.lpMsg] ; GameServ.<ModuleEntryPoint> 00431C2E |. 8B0C95 AC6CF4>MOV ECX,DWORD PTR DS:[EDX*4+dwgCheckSum] 00431C35 |. 3B48 04 CMP ECX,DWORD PTR DS:[EAX+4] 00431C38 |. 74 5C JE SHORT GameServ.00431C96 00431C3A |. 8B55 0C MOV EDX,[ARG.aIndex] 00431C3D |. 69D2 68190000 IMUL EDX,EDX,1968 ; ntdll.KiFastSystemCallRet 00431C43 |. 81C2 E0F06006 ADD EDX,GameServ.0660F0E0 00431C49 |. 52 PUSH EDX ; ntdll.KiFastSystemCallRet 00431C4A |. 8B45 0C MOV EAX,[ARG.aIndex] 00431C4D |. 69C0 68190000 IMUL EAX,EAX,1968 00431C53 |. 0FBF88 D4F060>MOVSX ECX,WORD PTR DS:[EAX+660F0D4] 00431C5A |. 51 PUSH ECX 00431C5B |. 8B55 08 MOV EDX,[ARG.lpMsg] ; GameServ.<ModuleEntryPoint> 00431C5E |. 8B42 04 MOV EAX,DWORD PTR DS:[EDX+4] 00431C61 |. 50 PUSH EAX 00431C62 |. 8B4D 0C MOV ECX,[ARG.aIndex] 00431C65 |. 69C9 68190000 IMUL ECX,ECX,1968 00431C6B |. 0FBF91 D4F060>MOVSX EDX,WORD PTR DS:[ECX+660F0D4] 00431C72 |. 8B0495 AC6CF4>MOV EAX,DWORD PTR DS:[EDX*4+dwgCheckSum] 00431C79 |. 50 PUSH EAX 00431C7A |. 68 54536B00 PUSH OFFSET GameServ.??_C@_0CM@KMJI@erro>; ASCII "error-L1 : CheckSum-Exe error %d %d %d [%s]" 00431C7F |. FF15 2C993506 CALL DWORD PTR DS:[LogAddTD] 00431C85 |. 83C4 14 ADD ESP,14 00431C88 |. 8B4D 0C MOV ECX,[ARG.aIndex] 00431C8B |. 51 PUSH ECX 00431C8C |. E8 B5F3FCFF CALL GameServ.00401046 00431C91 |. 83C4 04 ADD ESP,4 00431C94 |. EB 13 JMP SHORT GameServ.00431CA9 00431C96 |> 8B55 0C MOV EDX,[ARG.aIndex] 00431C99 |. 69D2 68190000 IMUL EDX,EDX,1968 ; ntdll.KiFastSystemCallRet 00431C9F |. C782 D8F06006>MOV DWORD PTR DS:[EDX+660F0D8],0 00431CA9 |> 5F POP EDI ; kernel32.7C816FD7 00431CAA |. 5E POP ESI ; kernel32.7C816FD7 00431CAB |. 5B POP EBX ; kernel32.7C816FD7 00431CAC |. 8BE5 MOV ESP,EBP 00431CAE |. 5D POP EBP ; kernel32.7C816FD7 00431CAF \. C3 RETN

Normally the command affected is this

Code:

00431C38 |. /74 5C JE SHORT GameServ.00431C96

Code:

often is changed to JMP or to JNZ to prevent disconnection, you must restore it to JE ( in other cases i saw that the function has a RET on the beginning, other remove the call to the function, be creative to restore to the original function that i posted above)

5.- How it works: the original main send a Checksum Value to GS and the GS check it, if it match it continue sending packets, if not it disconnects you. On all the gs, this function is wrong, as i explain, so the task is restore it, once it is done, the original checksum from webzen will again do its task :)

Cya
31-07-10
KoReeC

Re: Main CheckSum.dat Generator

What to do if main does not send CheckSum to a server?
31-07-10
mauka

Re: Main CheckSum.dat Generator

server disconnect u! Thought main.exe always send it
08-08-10
Sylv3R69

Re: Main CheckSum.dat Generator

Not work, i have generate checksum, and i copy lang/jpn and lang/kor, change gameverser.ini checksum=0 to 1 and commonserv.cfg .... but nothing, i can play normal... My antihack.dll is work, becouse disconnect me if i use hack, but if i change the antihack.dll name, nothing... so i dont know...

I use 1.02.40 client (CZF S4.5)

Help me pls...:ehh:
15-08-10
Kirgston

Re: Main CheckSum.dat Generator

My alternative program xD

- program moved to WinApi
- program very fast generate check sum
- hevent lags when create (such us freeze window , etc. )
- very-very little size (only 8kb!!!)

but its not full and complete version... but good generate files =)
it may need MSVC 2010 Redistributable and OS Vista or higher

link: RapidShare: 1-CLICK Web hosting - Easy Filehosting

link: Download CheckSum.exe from Sendspace.com - send big files the easy way
17-08-10
buffon

Quote:

Originally Posted by Sylv3R69

Not work, i have generate checksum, and i copy lang/jpn and lang/kor, change gameverser.ini checksum=0 to 1 and commonserv.cfg .... but nothing, i can play normal... My antihack.dll is work, becouse disconnect me if i use hack, but if i change the antihack.dll name, nothing... so i dont know...

I use 1.02.40 client (CZF S4.5)

Help me pls...:ehh:

don't activate cheksum in commonserver, only in gameserver.ini
Posted via Mobile Device
19-08-10
Diabolik

Re: Main CheckSum.dat Generator

yep :) very usefull ^^ and works fine
08-10-10
Quakers

Re: Main CheckSum.dat Generator

I have 97d+99 version and i have Dc when i login in game.Maby problem in Gamesever.exe ? becouse my 97d+9 have /post system etc. hmm.

Login in game and get Dc

Screens:

http://bildites.lv/images/ejhks326fkfczl0kx2.jpg

Gameserver error:

http://bildites.lv/images/3gu4nqv5d2u19r6ox5ug.jpg
16-12-10
Paukers

Re: Main CheckSum.dat Generator

i gives dc after 5 sec when i login in , with good main too
09-02-11
nolimitmu

Re: Main CheckSum.dat Generator

00431B61
00431B6E
00431B71
00431B77
00431B7C
00431B7D
Dont have these lines. How to add them? Im using .90 GS (SMTeam)
I tried to turn on the CheckSum, but it closes game after 5 sec (if do anything) and displays this:
00:29:27 [NPgg] Checksum Time Out [account][charname]
00:29:28 [NPgg] Checksum Time Out
00:29:29 [NPgg] Checksum Time Out
00:29:30 [NPgg] Checksum Time Out
00:29:31 [NPgg] Checksum Time Out
00:29:32 [NPgg] Checksum Time Out

Any help here? :(
19-02-11
shirrim

Re: Main CheckSum.dat Generator

Thanks!

But what if the checksum is disable?

I have a server and use checksum 1997 +99 ... But swindled the checksum ...
Any solution?
15-10-11
alkomat

Re: Main CheckSum.dat Generator

Thanks Deathway. This is awesome! Works on 1.00.90 .
15-10-11
dhiee27

Re: Main CheckSum.dat Generator

is this working on 1.03.11 main?
15-10-11
caothuphutho

Re: Main CheckSum.dat Generator

Quote:

Originally Posted by dhiee27

is this working on 1.03.11 main?

Yes! Work verry good ^^!

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