alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"GPL P2P Fastrack kazaa/morpheus traffic"; flow:to_server,established; content:"GET "; depth:4; content:"UserAgent|3A| KazaaClient"; reference:url,www.kazaa.com; classtype:policy-violation; sid:2101699; rev:11; metadata:created_at 2010_09_23, signature_severity Unknown, updated_at 2019_07_26;)