In the default configuration, the Zeek Intelligence Framework requires exact matches for detection of intel items. This script adds a new Intel::WILDCARD_DOMAIN type that matches on the base domain name, regardless of what subdomain may be prepended to it. ( e.g.: "example.com" would match "example.com", "foo.example.com", "foo.bar.example.com", etc. )
zkg install jbaggs/wildcard-domain