alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY URL Contains pass Parameter"; flow:established,to_server; content:"pass="; nocase; http_uri; pcre:"/(?<=(\?|&))pass=(?!&)/Ui"; classtype:policy-violation; sid:2012913; rev:2; metadata:created_at 2011_06_01, confidence High, signature_severity Informational, updated_at 2019_07_26;)