新手问题

2010-05-31 07:27:12 200 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

计算机视觉——多视图几何多视图几何1.前言1.1 多视图几何概念2. 基本原理2.1 对极几何2.2 基础矩阵2.2.1 基础矩阵推导2.2.2 求解基础矩阵3. 实验过程3.1 实验数据准备3.2 实验代码3.3 实验结果及分析4. 实验中遇到的问题 1.前言 1.1 多视图几何概念多视图几何是利用在不同视点所拍摄图像间的关系，来研究照相机之间或者特征之间关系的一门科学。多视图几何（Multiple View ... 阅读详情



BOOL WINAPI MyWriteProcessMemory(

  HANDLE hProcess,              // handle to process

LPVOID lpBaseAddress,          // base of memory area

LPVOID lpBuffer,              // data buffer

DWORD nSize,                  // number of bytes to write

LPDWORD lpNumberOfBytesWritten // number of bytes written

);

DETOUR_TRAMPOLINE(BOOL WINAPI CopyWriteProcessMemory(HANDLE, LPVOID, LPVOID, DWORD, LPDWORD), WriteProcessMemory);

BOOL WINAPI MyWriteProcessMemory(

HANDLE hProcess,              // handle to process

LPVOID lpBaseAddress,          // base of memory area

LPVOID lpBuffer,              // data buffer

DWORD nSize,                  // number of bytes to write

LPDWORD lpNumberOfBytesWritten) // number of bytes written

{

  BOOL nResult=CopyWriteProcessMemory(hProcess,lpBaseAddress,lpBaseAddress,nSize,lpNumberOfBytesWritten);    

MessageBoxA(NULL,(LPCTSTR)lpBaseAddress,"Hook!",MB_OK);  

return nResult;

} 



BOOL APIENTRY DllMain( HANDLE hModule, 

                      DWORD  ul_reason_for_call, 

                      LPVOID lpReserved

                    )

{

    switch (ul_reason_for_call)

    {

        case DLL_PROCESS_ATTACH:

            OutputDebugString("Detour dll Load!");

            DetourFunctionWithTrampoline((PBYTE)CopyWriteProcessMemory, (PBYTE)MyWriteProcessMemory);

            break;

        case DLL_THREAD_ATTACH:

            break;

        case DLL_THREAD_DETACH:

            break;

        case DLL_PROCESS_DETACH:

            OutputDebugString("Detour dll Exit!");

            DetourRemove((PBYTE)CopyWriteProcessMemory, (PBYTE)MyWriteProcessMemory);

            break;

    }

    return TRUE;

}

请问这段代码为何注入之后我用EXE程序调用了WriteProcessMemory 拦截不了。。。

而我照着拦截 MessageBox函数改也拦截不了。。代码如下：



#include <windows.h>

#include "detours.h"



#pragma comment(lib, "detours.lib")

#pragma comment(lib, "detoured.lib")



BOOL (WINAPI *pWriteProcessMemory)(HANDLE hProcess,LPVOID lpBaseAddress,LPCVOID lpBuffer,SIZE_T nSize,SIZE_T * lpNumberOfBytesWritten)

                                  =WriteProcessMemory;



BOOL WINAPI HookWriteProcessMemory(HANDLE hProcess,LPVOID lpBaseAddress,LPCVOID lpBuffer,SIZE_T nSize,SIZE_T * lpNumberOfBytesWritten)

{

 

 return pWriteProcessMemory(hProcess,(LPVOID)0x00170000,lpBuffer,nSize,lpNumberOfBytesWritten);

}









BOOL APIENTRY DllMain( HMODULE hModule,

                       DWORD  ul_reason_for_call,

                       LPVOID lpReserved

					 )

{

	switch (ul_reason_for_call)

	{

	case DLL_PROCESS_ATTACH:

  DetourTransactionBegin();

  DetourUpdateThread(GetCurrentThread());

  DetourAttach(&(PVOID&)pWriteProcessMemory, HookWriteProcessMemory);

  DetourTransactionCommit();

	case DLL_THREAD_ATTACH:

	case DLL_THREAD_DETACH:

	case DLL_PROCESS_DETACH:

  DetourTransactionBegin();

  DetourUpdateThread(GetCurrentThread());

  DetourDetach(&(PVOID&)pWriteProcessMemory, HookWriteProcessMemory);

  DetourTransactionCommit();

		break;

	}

	return TRUE;

}