alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Possible Phishing Landing Obfuscation 2016-03-17"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<meta http-equiv="; nocase; content:"refresh"; nocase; distance:1; within:7; content:"content="; nocase; within:30; content:"URL=data|3a|text/html|3b|base64,"; fast_pattern; nocase; distance:0; classtype:social-engineering; sid:2027899; rev:5; metadata:attack_target Client_Endpoint, created_at 2016_03_18, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_19, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)