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NeverCracker
Cheater
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Joined: 11 Jan 2007
Posts: 46
Location: My mind
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 Posted: Thu Jul 05, 2007 3:28 am Post subject: ASM Help |
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Hello,
Uzeil was recently helping me learn ASM and so far it's going great. I am using mASM. He was helping me create a trainer for GunBound, much like his, just a lot more basic and not as good 
This is what I have so far:
| Code: | .486
.model flat, stdcall
option casemap :none
include \masm32\include\windows.inc
include \masm32\macros\macros.asm
include \masm32\include\masm32.inc
include \masm32\include\gdi32.inc
include \masm32\include\user32.inc
include \masm32\include\kernel32.inc
includelib \masm32\lib\masm32.lib
includelib \masm32\lib\gdi32.lib
includelib \masm32\lib\user32.lib
includelib \masm32\lib\kernel32.lib
.data
mybuffer dd 0,0,0,0
.code
start:
call main
exit
main proc
print chr$("Welcome to NCLT - NeverCracker's Legit Trainer",10,10)
print chr$("1. Double Kill Exploit",10)
print chr$("2. Name Change Exploit",10)
print chr$("3. Power User Exploit",10)
print chr$("4. Room Number Change Exploit",10)
print chr$("5. Bonus Exploit",10,10)
print chr$("c0ded by nevercracker - mASM32 - 4.3.2007",10)
call cmdi
main endp
cmdi proc
LOCAL com:DWORD
print chr$(" ",10)
mov com, sval(input("NCLT: "))
cmp com, 1
je dke
cmp com, 2
je nce
cmp com, 3
je pue
cmp com, 4
je rnce
cmp com, 5
je be
jmp ove
dke:
invoke OpenProcess PROCESS_ALL_ACCESS, TRUE, 5
invoke WriteProcessMemory, 0xFFFFFFFF, 008B0CFD, offset mybuffer, 16, NULL
print chr$("Double Kill exploit now activated.")
print chr$(" ",10)
jmp ove
nce:
print chr$("two")
print chr$(" ",10)
jmp ove
pue:
print chr$("three")
print chr$(" ",10)
jmp ove
rnce:
print chr$("four")
print chr$(" ",10)
jmp ove
be:
print chr$("five")
print chr$(" ",10)
jmp ove
ove:
call cmdi
cmdi endp
end start
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What I need to know is how to properly use the OpenProcess and WriteProcessMemory functions correctly, thanks.
_________________
Give a man a hack, and he will hack for a day. Teach a man to hack, and he will hack for a lifetime.
GBNA Trainer - |||||||||| - 20% |
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benlue
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Joined: 09 Oct 2006
Posts: 2142
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| Posted: Thu Jul 05, 2007 4:15 am Post subject: |
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| This really should go to general programming.
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Ksbunker
Advanced Cheater
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Joined: 18 Oct 2006
Posts: 88
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| Posted: Thu Jul 05, 2007 5:12 am Post subject: |
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In your code, you're calling OpenProcess() then WriteProcessMemory(), Open process requires the Thread Process Id, which is retrieved using GetWindowThreadProcessId(), this call requires a handle to the target window, which is retrieved using FindWindow().
FindWindow() can take two parameters, class and caption (in that order).
The following procedure I use to write to memory using the caption, notice how for findwindow() is used the caption as specified by Caption.
Using the class to locate the game handle can be helpful if the target game randomly changes it caption. To determine the CLASS name, several otehr tricks are required, post it required.
| Code: | Write PROC Caption:DWORD, Address:DWORD, Value:DWORD
LOCAL hProcess
LOCAL hWind
LOCAL ProcessID
.data
szReason db "Window not located!", 0
szError db "Error", 0
.code
Invoke FindWindow, NULL, Caption
.if eax==0
invoke MessageBox, hWin, addr szReason, addr szError, MB_ICONEXCLAMATION
ret
.endif
mov hWind,eax
Invoke GetWindowThreadProcessId, hWind, addr ProcessID
Invoke OpenProcess,PROCESS_VM_READ + PROCESS_VM_WRITE + PROCESS_VM_OPERATION, 0, ProcessID
mov hProcess,eax
invoke WriteProcessMemory, hProcess, Address, Value, SIZEOF Value, NULL
invoke CloseHandle,hProcess
ret
Write ENDP |
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NeverCracker
Cheater
Reputation: 0
Joined: 11 Jan 2007
Posts: 46
Location: My mind
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| Posted: Thu Jul 05, 2007 5:50 pm Post subject: |
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Hmm thanks guys for all the information. This might be too hard of a first project 
I'll create something else in ASM to get me practice. What do you guys suggest? Like a trainer for another game with no protection? I do want infinite gold on Fable TLC... hm.
_________________
Give a man a hack, and he will hack for a day. Teach a man to hack, and he will hack for a lifetime.
GBNA Trainer - |||||||||| - 20% |
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Ksbunker
Advanced Cheater
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Joined: 18 Oct 2006
Posts: 88
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| Posted: Thu Jul 05, 2007 10:34 pm Post subject: re: |
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Try making a trainer in masm for minesweeper.
The game itself is not too difficult to train, coding the trainer may be a task, but a learning experience 
There's numerous tutorial surfing the web thta detail how to make trainers in masm (i.e. if you struggle)
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