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DLL injection problem

Cheat Engine Forum Index -> General Gamehacking

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aeree
Cheater

Reputation: 3

Joined: 23 Jan 2010
Posts: 42
Location: Germany

Posted: Mon Oct 07, 2013 9:31 am Post subject: DLL injection problem

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When I try to inject my code into a game nothing happens. I doesn't crash and I doesn't seem to run any of my code. What am I doing wrong?

Code:

#include <windows.h>

DWORD WINAPI Thread(LPVOID unused)
{
int *foo;
foo = (int *)0x30100;

MessageBoxA(0,"Something happened","yay",0);

while(true)
{
if(GetAsyncKeyState('X'))
{
foo+= 2;

Sleep(250);
}
Sleep(10);
}
}

void poo()
{
MessageBoxA(0,"Didn't work too well","nope",0);
}

BOOL WINAPI DllMain(HINSTANCE mod, DWORD DWORD_GRUND, LPVOID res)
{
switch(DWORD_GRUND)
{
case DLL_PROCESS_ATTACH:
CreateThread(0, 0, &Thread , 0, 0, 0);
break;
case DLL_PROCESS_DETACH:
poo();
break;
}
return true;
}

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Dark Byte
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Reputation: 470

Joined: 09 May 2003
Posts: 25807
Location: The netherlands

Posted: Mon Oct 07, 2013 9:55 am Post subject:

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you need to give the address of Thread, not the address to the address of thread

so try:

Code:

CreateThread(0, 0, Thread , 0, 0, 0);

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aeree
Cheater

Reputation: 3

Joined: 23 Jan 2010
Posts: 42
Location: Germany

Posted: Mon Oct 07, 2013 9:58 am Post subject:

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Dark Byte wrote:

you need to give the address of Thread, not the address to the address of thread

so try:

Code:

CreateThread(0, 0, Thread , 0, 0, 0);

Did that. Still no luck Sad

Sad

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Dark Byte
Site Admin

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Joined: 09 May 2003
Posts: 25807
Location: The netherlands

Posted: Mon Oct 07, 2013 10:01 am Post subject:

is the source filename .C or .CPP? If .CPP I recommend changing it to .C or mess around with headers that tell not to obfuscate symbol names _________________ Do not ask me about online cheats. I don't know any and wont help finding them. Like my help? Join me on Patreon so i can keep helping

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aeree
Cheater

Reputation: 3

Joined: 23 Jan 2010
Posts: 42
Location: Germany

Posted: Mon Oct 07, 2013 10:14 am Post subject:

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Dark Byte wrote:

is the source filename .C or .CPP?
If .CPP I recommend changing it to .C or mess around with headers that tell not to obfuscate symbol names

Ok I did that and now I'm getting an error saying:
undefined reference to 'WinMain@16'

But this only happened when I compile it in Codeblocks.
I then compiled it in Dev-C++ and now everything works fine.

Why is that?

Edit: Also thank you so much. I've been trying this for so long and never got it working until now Smile

Smile

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atom0s
Moderator

Reputation: 205

Joined: 25 Jan 2006
Posts: 8587
Location: 127.0.0.1

Posted: Mon Oct 07, 2013 10:56 am Post subject:

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fishbone105 wrote:

Dark Byte wrote:

is the source filename .C or .CPP?
If .CPP I recommend changing it to .C or mess around with headers that tell not to obfuscate symbol names

Ok I did that and now I'm getting an error saying:
undefined reference to 'WinMain@16'

But this only happened when I compile it in Codeblocks.
I then compiled it in Dev-C++ and now everything works fine.

Why is that?

Edit: Also thank you so much. I've been trying this for so long and never got it working until now Smile

Smile

You didn't select the proper type of project then. WinMain is the entrypoint for a standard Windows application.
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