通过进程ID获取基地址

时间:2021-04-08 13:29:59

下面代码是通过进程ID来获取进程的基地址,创建一个进程快照后,读取进程模块,一般情况下第一个模块就是进程的基地址,下面的程序通过模块的字符串匹配来找到基地址。通过MODULEENTRY32来读取,下面是代码:

#include <Windows.h>
#include <Tlhelp32.h>
#include <stdio.h> HMODULE fnGetProcessBase(DWORD PID);
DWORD GetLastErrorBox(HWND hWnd, LPSTR lpTitle) ; int main()
{
HMODULE hModule = fnGetProcessBase();
printf("%X",hModule);
return ;
} HMODULE fnGetProcessBase(DWORD PID)
{
//获取进程基址
HANDLE hSnapShot;
//通过CreateToolhelp32Snapshot和线程ID,获取进程快照
hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, PID);
if (hSnapShot == INVALID_HANDLE_VALUE)
{
GetLastErrorBox(NULL,"无法创建快照");
return NULL;
}
MODULEENTRY32 ModuleEntry32;
ModuleEntry32.dwSize = sizeof(ModuleEntry32);
if (Module32First(hSnapShot, &ModuleEntry32))
{
do
{
TCHAR szExt[];
strcpy(szExt, ModuleEntry32.szExePath + strlen(ModuleEntry32.szExePath) - );
for (int i = ;i < ;i++)
{
if ((szExt[i] >= 'a')&&(szExt[i] <= 'z'))
{
szExt[i] = szExt[i] - 0x20;
}
}
if (!strcmp(szExt, ".EXE"))
{
CloseHandle(hSnapShot);
return ModuleEntry32.hModule;
}
} while (Module32Next(hSnapShot, &ModuleEntry32));
}
CloseHandle(hSnapShot);
return NULL; } // 显示错误信息
DWORD GetLastErrorBox(HWND hWnd, LPSTR lpTitle)
{
LPVOID lpv;
DWORD dwRv; if (GetLastError() == ) return ; dwRv = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
GetLastError(),
MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
(LPSTR)&lpv,
,
NULL); MessageBox(hWnd, (LPCSTR)lpv, lpTitle, MB_OK); if(dwRv)
LocalFree(lpv); SetLastError();
return dwRv;
}