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Stylo
Grandmaster Cheater Supreme
![]() Reputation: 3
Joined: 16 May 2007
Posts: 1073
Location: Israel
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 Posted: Fri Dec 04, 2009 12:22 pm Post subject: Something messed up with my injection code |
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that's my injection code for dll files
| Code: |
BOOL InjectDll(__in_bcount_z(256) _TCHAR *szDllFile, __in DWORD dwProcessId)
{
HANDLE hProcess;
DWORD dwMemSize, dwWritten, dwThreadId;
FARPROC hLoadLib;
HMODULE hKernel;
LPVOID lpvMem;
hProcess = OpenProcess(PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_VM_OPERATION | PROCESS_CREATE_THREAD,FALSE,dwProcessId);
if (hProcess) {
dwMemSize = lstrlen(szDllFile);
hKernel = GetModuleHandle(_T("Kernel32.Dll"));
hLoadLib = GetProcAddress(hKernel,"LoadLibraryW");
if (hLoadLib) {
lpvMem = VirtualAllocEx(hProcess,NULL,dwMemSize,MEM_COMMIT,PAGE_EXECUTE_READWRITE);
if (lpvMem) {
if (WriteProcessMemory(hProcess,lpvMem,(void*)szDllFile,dwMemSize,&dwWritten)) {
if (CreateRemoteThread(hProcess,0,0,(LPTHREAD_START_ROUTINE)lpvMem,hLoadLib,0,&dwThreadId)) {
MessageBox(0,_T("Injection Succeeded"),_T("Dll Injector"),MB_ICONINFORMATION);
return TRUE;
}
}
}
}
}
return FALSE;
}
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it compiles fine but when i select dll to inject and press my injection button
the injector crushes!@!@
:S maybe i'm missing something here?
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hcavolsdsadgadsg
I'm a spammer
![]() Reputation: 26
Joined: 11 Jun 2007
Posts: 5801
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| Posted: Fri Dec 04, 2009 2:39 pm Post subject: |
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| something tells me this would become immediately obvious if you actually ran it with the debugger
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Dark Byte
Site Admin
 Reputation: 470
Joined: 09 May 2003
Posts: 25796
Location: The netherlands
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| Posted: Fri Dec 04, 2009 3:16 pm Post subject: |
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I really dislike unicode, and I bet this is one of those situations where unicode is the reason it goes wrong (lstrlen returns the number of characters, not the number of bytes)
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Stylo
Grandmaster Cheater Supreme
![]() Reputation: 3
Joined: 16 May 2007
Posts: 1073
Location: Israel
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| Posted: Fri Dec 04, 2009 3:18 pm Post subject: |
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oh my...
shoot me please
but there's one more thing
now that i exchanged the allocated address with loadlib handle
it's successfully inject it but nothing's happening
i have messagebox that should pop up when the dll is injected but it ain't poping up
edit: i read your message now db i'll try replacing to ascii or try fixing the unicode part
edit2:
yes db you were right
it was a problem with lstrlen
i just multiplied the returned value by 2 since unicode = 2 bytes and it's worked
thank u both :]
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