alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Possible Phishing Landing Captcha Check"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"<title>Security Check"; content:"function verifyCaptcha()"; distance:0; content:"var blockerurl"; distance:0; content:"email_par"; distance:0; content:"window.location.replace(blockerurl+"; fast_pattern; distance:0; content:".php|22 20|onsubmit=|22|return verifyCaptcha()"; distance:0; classtype:social-engineering; sid:2030610; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_07_29, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)