alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Suspicious HTML Decimal Obfuscated Title - Possible Phishing Landing Apr 19 2017"; flow:from_server,established; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<title>"; nocase; content:"|26 23|"; within:5; content:"|3b 26 23|"; fast_pattern; within:6; content:"|3b 26 23|"; within:6; content:"|3b 26 23|"; within:6; content:"|3b 26 23|"; within:6; content:"|3b 26 23|"; within:6; content:"|3b 26 23|"; within:6; content:"</title>"; nocase; distance:0; classtype:social-engineering; sid:2024228; rev:5; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_04_19, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_11_19, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)