alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY URL Contains passphrase Parameter"; flow:established,to_server; content:"passphrase="; http_uri; nocase; pcre:"/(?<=(\?|&))passphrase=(?!&)/Ui"; classtype:policy-violation; sid:2012916; rev:3; metadata:created_at 2011_06_01, confidence High, signature_severity Informational, updated_at 2019_07_26;)