WARNING: This repo hasn't been touched in years, and I'm sure it's broken in the intervening time.
This is an analyzer for Cortex. It will do IP address lookups against the Shadowserver BGP-IP Lookup service.
To install, place these files in a new directory (such as "ASNLookup") under your Cortex Analyzers directory.
Note that the requirements file is for Python3, thus you might need to:
pip3 install -r requirements.txt
Please report any issues or feature requests here!