很笨的方法

（写过才能知道，哪些地方，需要注意，开始想的很简单，就三部，写了 一个多小时！！）

void TestMoveRelocDirectory(LPSTR lpszFile)

{

	/*

	1 新增一个节

	2 把重定位的表 移动到那个节中

	3 更改标志位

	*/

	LPVOID pFileBuffer = NULL;

	pFileBuffer= ReadPEFile(lpszFile);

	if(!pFileBuffer)

	{

		printf("文件读取失败\n");

		return;

	}

	

	PIMAGE_DOS_HEADER pDosHeader = NULL;

	PIMAGE_NT_HEADERS pNTHeader = NULL;

	PIMAGE_FILE_HEADER pPEHeader = NULL;

	PIMAGE_OPTIONAL_HEADER32 pOptionHeader = NULL;

	PIMAGE_SECTION_HEADER pSectionHeader = NULL;

	PIMAGE_SECTION_HEADER pSectionHeader_ADD = NULL;

	PIMAGE_DATA_DIRECTORY DataDirectory=NULL;

	

	//Header信息

	pDosHeader = (PIMAGE_DOS_HEADER)pFileBuffer;

	pNTHeader = (PIMAGE_NT_HEADERS)((DWORD)pFileBuffer+pDosHeader->e_lfanew);

	pPEHeader = (PIMAGE_FILE_HEADER)(((DWORD)pNTHeader)+4);

	pOptionHeader = (PIMAGE_OPTIONAL_HEADER32)((DWORD)pPEHeader+IMAGE_SIZEOF_FILE_HEADER);

	pSectionHeader = (PIMAGE_SECTION_HEADER)((DWORD)pOptionHeader+pPEHeader->SizeOfOptionalHeader);

	pSectionHeader_ADD = pSectionHeader;

	

	//1 判断能否添加节

	DWORD Header_size = pDosHeader->e_lfanew + 4 + 20 + pPEHeader->SizeOfOptionalHeader + pPEHeader->NumberOfSections*40;

	if(pOptionHeader->SizeOfHeaders-Header_size<80)

	{

		printf("没有可用空间填充节表\n");

		free(pFileBuffer);

		return;

	}

	

	printf("空间：%d\n",pOptionHeader->SizeOfHeaders-Header_size);

	



	//添加一个节

	//确定参数

	PIMAGE_SECTION_HEADER pSectionHeader_LAST = (PIMAGE_SECTION_HEADER)((DWORD)pSectionHeader+(pPEHeader->NumberOfSections-1)*40);

	pSectionHeader_ADD=(PIMAGE_SECTION_HEADER)((DWORD)pSectionHeader_ADD+(pPEHeader->NumberOfSections)*40);

	//="NewSec";

	strcpy((char*)pSectionHeader_ADD->Name,"NewSec");

	pSectionHeader_ADD->Misc.VirtualSize = 0x2000;

	pSectionHeader_ADD->VirtualAddress = pOptionHeader->SizeOfImage;

	pSectionHeader_ADD->SizeOfRawData = 0x2000;

	pSectionHeader_ADD->PointerToRawData = pSectionHeader_LAST->PointerToRawData+pSectionHeader_LAST->SizeOfRawData;

	pSectionHeader_ADD->Characteristics = pSectionHeader->Characteristics;



	//填充0

	LPVOID pSectionEND = (LPVOID)((DWORD)pSectionHeader_ADD+40);

	memset(pSectionEND,0,IMAGE_SIZEOF_SECTION_HEADER);



	

	//修改PE头信息

	pPEHeader->NumberOfSections = pPEHeader->NumberOfSections +1;

	pOptionHeader->SizeOfImage  = pOptionHeader->SizeOfImage+0x2000;



	//写入到文件

	FILE *pOutFile = NULL;	

	//打开文件

	pOutFile = fopen("C://addSec.dll","a+b");

	

	if(!pOutFile)

	{

		printf("无法打开文件EXE文件");

		return;

	}

	//写出第一部分

	printf("length: %x \n ",pSectionHeader_ADD->PointerToRawData+pSectionHeader_ADD->SizeOfRawData);



	size_t writeSize = fwrite(pFileBuffer,pSectionHeader_ADD->PointerToRawData,1,pOutFile);

	printf("WirteSize:%d\n",writeSize);

	//写出第二部分

	LPVOID pNewBuffer=(LPVOID)malloc(0x2000);

	if(pNewBuffer==NULL)

	{

		printf("pNewBuffer分配空间失败\n");

		return;

	}

	memset(pNewBuffer,0,0x2000);

	writeSize = fwrite(pNewBuffer,0x2000,1,pOutFile);

	//关闭文件

	fclose(pOutFile);

	free(pFileBuffer);

	free(pNewBuffer);



	//读入添加好节的文件

	pFileBuffer= ReadPEFile("C://addSec.dll");

	

	//将重定位表的信息，放到最后一个节中

		//Header信息

	pDosHeader = (PIMAGE_DOS_HEADER)pFileBuffer;

	pNTHeader = (PIMAGE_NT_HEADERS)((DWORD)pFileBuffer+pDosHeader->e_lfanew);

	pPEHeader = (PIMAGE_FILE_HEADER)(((DWORD)pNTHeader)+4);

	pOptionHeader = (PIMAGE_OPTIONAL_HEADER32)((DWORD)pPEHeader+IMAGE_SIZEOF_FILE_HEADER);

	pSectionHeader = (PIMAGE_SECTION_HEADER)((DWORD)pOptionHeader+pPEHeader->SizeOfOptionalHeader);

	//最后一个节

	pSectionHeader_ADD=(PIMAGE_SECTION_HEADER)((DWORD)pSectionHeader+(pPEHeader->NumberOfSections-1)*40);



	//定位Directory_Data;

	DataDirectory = pOptionHeader->DataDirectory;

	

	//重定位表



	printf("IMAGE_DIRECTORY_ENTRY_BASERELOC: Address: %x ,Size: %x \n",DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress,

		DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size);



	//DWORD RVAToFileOffset(LPVOID pFileBuffer,DWORD dwRva)

	DWORD FoA = RVAToFileOffset(pFileBuffer,0x2df10);

	

	DWORD BaseReloc_Directory_Address = DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress;

	DWORD BaseReloc_Directory_Size = DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size;

	FoA = RVAToFileOffset(pFileBuffer,BaseReloc_Directory_Address);

	



	//定位到第一个重定位块

	PIMAGE_BASE_RELOCATION pRelocData = (PIMAGE_BASE_RELOCATION)((DWORD)pFileBuffer + FoA);

	PIMAGE_BASE_RELOCATION pRelocData_Start = (PIMAGE_BASE_RELOCATION)((DWORD)pFileBuffer + FoA);



	DWORD sizeOfRelocDirectory = 0;

	//计算重定位表的大小

	while(pRelocData->VirtualAddress||pRelocData->SizeOfBlock)

	{

		DWORD RelocVirtualAddress = pRelocData->VirtualAddress;

		DWORD RelocSize = pRelocData->SizeOfBlock;



		sizeOfRelocDirectory = sizeOfRelocDirectory + RelocSize;



		pRelocData = (PIMAGE_BASE_RELOCATION)((DWORD)pRelocData + RelocSize);

	}



	//起始位置pRelocData

	

	

	//移动

	PDWORD myRelocLoc = (PDWORD)pSectionHeader_ADD->PointerToRawData;

	printf("Reloc: %x , Size: %x \n",pRelocData,sizeOfRelocDirectory);

	



	//memcpy(myRelocLoc,pRelocData,sizeOfRelocDirectory);

	LPVOID destStart = (LPVOID)((DWORD)pFileBuffer + (DWORD)myRelocLoc);



	printf("pFileBuffer:%x, myRelocLoc: %x \n",pFileBuffer,destStart);



	LPVOID srcStart = (LPVOID)(pRelocData_Start);

	

	memcpy(destStart,srcStart,sizeOfRelocDirectory);

	

	

	//修改重定位表的参数

	DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress = FileOffsetToRVA(pFileBuffer,pSectionHeader_ADD->PointerToRawData);



	//写出到dll中

	DWORD FileSize = pSectionHeader_ADD->PointerToRawData + pSectionHeader_ADD->SizeOfRawData;



	WirteToFile(pFileBuffer,FileSize,"C://addNewSec.dll");



}