Just a quick note to go with something I dropped on Github recently: pwnpattern is a python library and stand-alone script that replicates most of the functionality of Metasploit Framework’s pattern_create.rb and pattern_offset.rb. The patterns created are identical to those from Metasploit, so you can even mix and match tools.

There are several reasons I wrote this:

• You don’t need a full copy of metasploit installed for creating patterns for e.g., wargames, CTFs, etc.
• It loads much more quickly: on my machine, Metasploit’s pattern_create.rb takes 2.29s, my script takes 0.01s. This is due, of course, to dependencies (MSF’s requires the entire Rex library to be loaded) but it is kind of nice to not wait for things.
• It can be embedded in python scripts (just like Rex can be embedded in Ruby scripts).