DLL注入代碼

#include <iostream>
#include <windows.h>

using namespace::std;

int Inject(HWND hwnd, char *name);

int main()
{
char dll[]="F:\\Win32Dll.dll";//change the name to your dll
    HWND hw=0;

    hw = FindWindow("DebugTest", NULL);//change the "Notepad" to your window name
    if(!hw)
    {
        cout<<"Unable find window"<<endl;
return 0;
    }
if(Inject(hw,dll))
    {
        cout<<"DLL has injected into the process successfully"<<endl;
    }
else
    {
        cout<<"Couldn't inject DLL into process"<<endl;
    }
return 0;
}


int Inject(HWND hwnd,char *name)
{
    DWORD Pid;
    HANDLE    hProcess,hThread;
    DWORD   BytesWritten;
    LPVOID    mem;

    GetWindowThreadProcessId(hwnd, &Pid);
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, Pid);
if(!hProcess)
return 0;
    mem = VirtualAllocEx(hProcess, NULL,  strlen(name), MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
if(mem==NULL)
    {
        CloseHandle(hProcess);
return 0;
    }
if(WriteProcessMemory(hProcess, mem, (LPVOID)name,  strlen(name), &BytesWritten))
    {
        hThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandle("KERNEL32.DLL"), "LoadLibraryA"), mem, 0, NULL);
if(!hThread)
        {
            VirtualFreeEx(hProcess,NULL,strlen(name),MEM_RESERVE|MEM_COMMIT);
            CloseHandle(hProcess);
return 0;
        }
        VirtualFreeEx(hProcess,NULL,strlen(name),MEM_RESERVE|MEM_COMMIT);
        CloseHandle(hThread);
        CloseHandle(hProcess);
return 1;
    }   
    VirtualFreeEx(hProcess,NULL,strlen(name),MEM_RESERVE|MEM_COMMIT);
    CloseHandle(hProcess);

return 0;
}