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| bool PatchReses(char *source,char *target)
{
HANDLE src=CreateFileA(source,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
_IMAGE_NT_HEADERS *srcimage=new _IMAGE_NT_HEADERS;
_IMAGE_NT_HEADERS *targetimage=new _IMAGE_NT_HEADERS;
DWORD srcressz=0;
char *srcreses;
if(src!=INVALID_HANDLE_VALUE)
{
LARGE_INTEGER SZ;
ZeroMemory(&SZ,sizeof(SZ));
GetFileSizeEx(src,&SZ);
char *buf=new char[SZ.QuadPart+1024];
memset(buf,NULL,SZ.QuadPart+1024);
DWORD rb;
ReadFile(src,buf,SZ.QuadPart,&rb,0);
CloseHandle(src);
_IMAGE_DOS_HEADER stub;
memcpy(&stub,buf,sizeof(_IMAGE_DOS_HEADER));
buf+=stub.e_lfanew;
memcpy(srcimage,buf,sizeof(_IMAGE_NT_HEADERS));
_IMAGE_SECTION_HEADER *sections=new _IMAGE_SECTION_HEADER[srcimage->FileHeader.NumberOfSections];
buf+=sizeof(_IMAGE_NT_HEADERS);
memcpy(sections,buf,(srcimage->FileHeader.NumberOfSections*sizeof(_IMAGE_SECTION_HEADER)));
buf-=sizeof(_IMAGE_NT_HEADERS);
buf-=stub.e_lfanew;
for(int i=0;i<srcimage->FileHeader.NumberOfSections;i++)
{
//printf("%.8s\n",sections[i].Name);
if(srcimage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress==sections[i].VirtualAddress)
{
srcreses=new char[sections[i].SizeOfRawData];
buf+=sections[i].PointerToRawData;
memcpy(srcreses,buf,sections[i].SizeOfRawData);
buf-=sections[i].PointerToRawData;
srcressz=sections[i].SizeOfRawData;
}
}
delete []buf;
}
else
{
printf("Error open source exe\n");
return(false);
}
HANDLE tg=CreateFileA(target,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if(tg!=INVALID_HANDLE_VALUE)
{
LARGE_INTEGER SZ;
ZeroMemory(&SZ,sizeof(SZ));
GetFileSizeEx(tg,&SZ);
char *buf=new char[SZ.QuadPart+1024];
memset(buf,NULL,SZ.QuadPart+1024);
DWORD rb;
ReadFile(tg,buf,SZ.QuadPart,&rb,0);
CloseHandle(tg);
_IMAGE_DOS_HEADER stub;
memcpy(&stub,buf,sizeof(_IMAGE_DOS_HEADER));
buf+=stub.e_lfanew;
memcpy(targetimage,buf,sizeof(_IMAGE_NT_HEADERS));
_IMAGE_SECTION_HEADER *sections=new _IMAGE_SECTION_HEADER[targetimage->FileHeader.NumberOfSections];
buf+=sizeof(_IMAGE_NT_HEADERS);
memcpy(sections,buf,(targetimage->FileHeader.NumberOfSections*sizeof(_IMAGE_SECTION_HEADER)));
buf-=sizeof(_IMAGE_NT_HEADERS);
buf-=stub.e_lfanew;
DWORD resesDelta=0;
for(int i=0;i<targetimage->FileHeader.NumberOfSections;i++)
{
if(targetimage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress==sections[i].VirtualAddress)
{
resesDelta=srcressz-sections[i].SizeOfRawData;
}
}
char *newexe=new char[SZ.QuadPart+resesDelta];
for(int i=0;i<targetimage->FileHeader.NumberOfSections;i++)
{
if(targetimage->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress==sections[i].VirtualAddress)
{
DWORD irdsz=sizeof(_IMAGE_RESOURCE_DIRECTORY),irdEsz=sizeof(_IMAGE_RESOURCE_DIRECTORY_ENTRY),resdatsz=sizeof(_IMAGE_RESOURCE_DATA_ENTRY);
DWORD acum=irdsz;
_IMAGE_RESOURCE_DATA_ENTRY *dataE=new _IMAGE_RESOURCE_DATA_ENTRY;
//printf("%d",irdsz);
srcreses+=irdsz;
for(;;)
{
ZeroMemory(dataE,resdatsz);
srcreses+=irdEsz;
memcpy(dataE,srcreses,resdatsz);//тут ошибка,ругается что srcreses кривой указатель
acum=acum+irdEsz+resdatsz;
dataE->OffsetToData=/*dataE.Size+*/acum+sections[i].PointerToRawData;//calculate new RVA
memcpy(srcreses,dataE,resdatsz);
srcreses+=(resdatsz+dataE->Size);
acum=acum+resdatsz+dataE->Size;
if(acum==srcressz){break;}
}
srcreses-=srcressz;
printf("!");
////////////////////////////////////////////////////////////
memcpy(newexe,buf,sections[i].PointerToRawData);
newexe+=sections[i].PointerToRawData;
memcpy(newexe,srcreses,srcressz);
newexe+=srcressz;
DWORD totalseek=0;
_IMAGE_SECTION_HEADER *fixedsections=new _IMAGE_SECTION_HEADER[targetimage->FileHeader.NumberOfSections];
memcpy(fixedsections,sections,(targetimage->FileHeader.NumberOfSections*sizeof(_IMAGE_SECTION_HEADER)));
fixedsections[i].SizeOfRawData=srcressz;
i++;
for(int j=i;j<targetimage->FileHeader.NumberOfSections;j++)
{
buf+=sections[j].PointerToRawData;
memcpy(newexe,buf,sections[j].SizeOfRawData);
fixedsections[j].PointerToRawData=sections[j].PointerToRawData+resesDelta;
fixedsections[j].VirtualAddress=sections[j].VirtualAddress+resesDelta;
newexe+=sections[j].SizeOfRawData;
totalseek=totalseek+sections[j].SizeOfRawData;
}
newexe-=totalseek;
newexe-=sections[i-1].PointerToRawData;
newexe-=srcressz;
_IMAGE_DOS_HEADER stubN;
memcpy(&stubN,newexe,sizeof(_IMAGE_DOS_HEADER));
newexe+=stubN.e_lfanew;
newexe+=sizeof(_IMAGE_NT_HEADERS);
memcpy(newexe,fixedsections,(targetimage->FileHeader.NumberOfSections*sizeof(_IMAGE_SECTION_HEADER)));
newexe-=stubN.e_lfanew+sizeof(_IMAGE_NT_HEADERS);
HANDLE out=CreateFileA(target,GENERIC_WRITE,FILE_SHARE_WRITE,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);
DWORD wb;
WriteFile(out,newexe,SZ.QuadPart+resesDelta,&wb,0);
CloseHandle(out);
break;
}
}
}
else
{
printf("Error open target exe");
}
delete srcimage;
delete targetimage;
delete []srcreses;
return(true);
} |
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