alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING IRS Phishing Landing 2018-03-28"; flow:established,to_client; file_data; content:"<title>internal revenue service</title>"; nocase; fast_pattern; content:"method=|22|post|22|"; nocase; distance:0; content:"last 4 of ssn"; nocase; distance:0; content:"if ($('#email').val() == '')"; nocase; distance:0; classtype:social-engineering; sid:2025443; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_03_28, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2019_07_26;)