Simple - Encoding your source - Python

chroniccommand

So I'm writing this very simple guide to help you encode your source. It can of course be decoded but it's good for simply encoding it.
First we take our source and encode it using base64. Check out this simple example for encoding:


import base64
code = ('''
import os, sys
a = \"test1\"
a1 = os&#46;name
print a1
print(\"\\n\\ntest2\") #Notice we use two slashes&#46; This is to escape when we write to the file
sys&#46;exit()
''')
base = base64&#46;b64encode(code)
print base

Here would be the output:


CmltcG9ydCBvcywgc3lzCmEgPSAidGVzdDEiCmExID0gb3MubmFtZSgpCnByaW50IGExCnByaW50KCJcblxudGVzdDIiKSAjTm90aWNlIHdlIHVzZSB0d28gc2xhc2hlcy4gVGhpcyBpcyB0byBlc2NhcGUgd2hlbiB3ZSB3cml0ZSB0byB0aGUgZmlsZQpzeXMuZXhpdCgpCg==

Now we take that and decode it and write to a file.


import base64
code=('''
CmltcG9ydCBvcywgc3lzCmEgPSAidGVzdDEiCmExID0gb3MubmFtZSgpCnByaW50IGExCnByaW50KCJcblxudGVzdDIiKSAjTm90aWNlIHdlIHVzZSB0d28gc2xhc2hlcy4gVGhpcyBpcyB0byBlc2NhcGUgd2hlbiB3ZSB3cml0ZSB0byB0aGUgZmlsZQpzeXMuZXhpdCgpCg==
''')
code1 = base64&#46;b64decode(code)
file = open('/tmp/test&#46;py', 'w')
file&#46;write(code1)
file&#46;close()

Simple. It decodes and writes to a file. Now lets execute /tmp/test.py


chronic@vandal&#58;/tmp$ python /tmp/test/py
posix


test2

It worked :)

Note that this is easy to decode.
You could also use eval() but I haven't had success with that.

Xin

Nice, although pretty easy to decode if you were trying to decompile it

chroniccommand

said:

Nice, although pretty easy to decode if you were trying to decompile it

Yea I mentioned that :p

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