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jeromerocks
How do I cheat?
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Joined: 27 Mar 2007
Posts: 2
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 Posted: Sun Oct 12, 2008 11:05 pm Post subject: Delphi APIs |
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Hi,
I read that I needed to hook GetTickCount, timeGetTime and QueryPerformanceCounter to make a speed hack. But now I'm stuck as to how to code one in delphi.
I can code a process list on a delphi form, but how do I make it like CE, ie the user selects the process and then he can set the speed at which the program runs.
Could anyone help me out?
Thanks a lot!
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ups2000ups
I post too much
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Joined: 31 Jul 2006
Posts: 2471
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| Posted: Sun Oct 12, 2008 11:40 pm Post subject: |
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if you already know the API's go to http://msdn.microsoft.com/en-us/library/default.aspx
try to learn yourself something instead of asking for a code. if you really want help to be a better programmer ask real questions but if you dont wanna learn keep going
tip
if you cant fix it try to make an easier project and work your way up until you know how to do it
_________________
dont complain about my english...
1*1 = 2? |
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jeromerocks
How do I cheat?
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Joined: 27 Mar 2007
Posts: 2
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| Posted: Mon Oct 13, 2008 12:36 am Post subject: |
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Sorry.
I know the APIs but I don't know what to do with them. I'm not begging for the code, I just wish that someone would explain in words, not pascal code, what I should do with the APIs.
Thanks for your reply anyway.
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Dark Byte
Site Admin
 Reputation: 471
Joined: 09 May 2003
Posts: 25833
Location: The netherlands
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| Posted: Mon Oct 13, 2008 12:39 am Post subject: |
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Write a dll that has alternate versions of those apis and inject it into the target process
In the dll, or using writeprocessmemory, change the first 5 bytes of the original api functions with a jmp to each alternate function
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Do not ask me about online cheats. I don't know any and wont help finding them.
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rapion124
Grandmaster Cheater Supreme
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Joined: 25 Mar 2007
Posts: 1095
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| Posted: Mon Oct 13, 2008 2:22 pm Post subject: |
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You redirect execution flow when an application calls the API. The code will be redirected to your code, where you can modify the results and such. Here's a sample:
| Code: |
__declspec(naked) DWORD WINAPI _GetTickCount(void)
{
__asm
{
mov edi, edi
push ebp
mov ebp, esp
jmp [GetTickCount_R] //GetTickCount + 5
}
}
DWORD WINAPI __GetTickCount(void) //Hook procedure
{
DWORD RET;
RET = _GetTickCount(); //_GetTickCount() is a trampoline
RET *= 2; //twice as fast
return RET;
}
[/code
That's the hook procedure. Now, you need to install an inline hook at GetTickCount, which basically is a unconditional jump to __GetTickCount. Then, you need to make a trampoline. |
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smartz993
I post too much
 Reputation: 2
Joined: 20 Jun 2006
Posts: 2013
Location: USA
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| Posted: Mon Oct 13, 2008 2:31 pm Post subject: |
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| rapion124 wrote: | You redirect execution flow when an application calls the API. The code will be redirected to your code, where you can modify the results and such. Here's a sample:
| Code: |
__declspec(naked) DWORD WINAPI _GetTickCount(void)
{
__asm
{
mov edi, edi
push ebp
mov ebp, esp
jmp [GetTickCount_R] //GetTickCount + 5
}
}
DWORD WINAPI __GetTickCount(void) //Hook procedure
{
DWORD RET;
RET = _GetTickCount(); //_GetTickCount() is a trampoline
RET *= 2; //twice as fast
return RET;
}
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That's the hook procedure. Now, you need to install an inline hook at GetTickCount, which basically is a unconditional jump to __GetTickCount. Then, you need to make a trampoline |
You already made the trampoline, _GetTickCount.
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hcavolsdsadgadsg
I'm a spammer
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Joined: 11 Jun 2007
Posts: 5801
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| Posted: Mon Oct 13, 2008 2:35 pm Post subject: |
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That wouldn't be twice as fast.
Instead of going: 1 2 3 4 5 6 7 8 9 10...
It would be: 1 2 4 8 16 32 64 128 256 512...
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GMZorita
Grandmaster Cheater Supreme
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Joined: 21 Mar 2007
Posts: 1361
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| Posted: Mon Oct 13, 2008 2:47 pm Post subject: |
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| Code: |
int vs = 2;
int add;
void __declspec(naked) __stdcall hook()
{
add++;
GetTickCount();
_EAX += add;
_asm ret;
}
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