alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Successful Generic Phish (Redirect to Download PDF) 2016-02-08"; flow:to_client,established; flowbits:isset,ET.genericphish; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<META HTTP-EQUIV="; nocase; within:100; fast_pattern; content:"refresh"; nocase; distance:1; within:7; content:"content="; nocase; within:25; content:"url="; nocase; within:25; content:".php"; nocase; within:25; classtype:credential-theft; sid:2032176; rev:5; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_02_08, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)