Thread: problem- injection dll thru remotethread

I am trying to inject Dll throught CreateRemoteThread.
I am trying to inject it into notepad.exe whose pid is 1616

My code of injector program is

Code:

int main()
{

HANDLE hProcess = NULL, hThread = NULL;
PWSTR p = NULL;

// Get a handle for the target process.
hProcess = OpenProcess(
PROCESS_CREATE_THREAD | // For CreateRemoteThread
PROCESS_VM_OPERATION | // For VirtualAllocEx/VirtualFreeEx
PROCESS_VM_WRITE, // For WriteProcessMemory
FALSE, 1616);
printf("%d",hProcess);

PTHREAD_START_ROUTINE pfnThreadRtn = (PTHREAD_START_ROUTINE)
GetProcAddress(GetModuleHandle(TEXT("Kernel32")), "LoadLibraryA");

printf("%d",pfnThreadRtn);
char* pszLibFile = "C:\\dll_process_attach.dll";
int cch = 1 + strlen(pszLibFile);
int cb = cch * sizeof(WCHAR);

p=(PWSTR)VirtualAllocEx(hProcess,0,cb,MEM_COMMIT,PAGE_EXECUTE_READWRITE);
if(p==NULL)
{
printf("virtual alloc funtion fiailed %d",GetLastError());
}

if (!WriteProcessMemory(hProcess, p,(PVOID)pszLibFile, cb, NULL))
printf("failed");

hThread = CreateRemoteThread(hProcess, NULL, 0,pfnThreadRtn, p, 0, NULL);
if (hThread == NULL) printf("\nremorethrad failed");
printf("%d",hThread);
}

code for the dll is....

Code:

#include "stdafx.h"
#include

BOOL WINAPI DllMain(HINSTANCE hinstDll, DWORD fdwReason, PVOID fImpLoad) 
{
if (fdwReason == DLL_PROCESS_ATTACH)
{
printf("Dll Injected");
return(TRUE); // Used only for DLL_PROCESS_ATTACH
}
}

Problem :-

code for the injector program is not showing any error while execution . But at the same time i dont see any change into my notepad.exe(1616) process.
I am a newbie to windows programming and just have basic knowledge abt dlls...
Shud`nt after the dll injection into the notepad process, "dll_injected" shud be printed as specified in the DllMain

If i am wrong or anything wrong with the injector code or dll code .. plz correct me ..

Thanx in advance

i have tried both the changes as suggested bu u guys . but still i dont find any change when i execute the program .

hii

thanx to all for ur kind help . Code is running fine now and message box is also appearing.

i dont have much experience on dll programming .
can anyone suggest some good books or materials on dll programming ?

thanx

Hi Vart

can u give the link to download this ebook
Jeffrey Richter - "Programming Applications for Microsoft Windows" forth edition

i tried on microsoft site . but couldnt get it .

thanx