alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Successful EDU Phish 2017-12-04"; flow:established,to_client; flowbits:isset,ET.eduphish; http.stat_code; content:"302"; http.header; content:"|0d 0a|Location|3a 20|"; nocase; pcre:"/^[^\r\n]+\.edu/Ri"; http.content_len; byte_test:0,=,0,0,string,dec; classtype:credential-theft; sid:2025114; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_12_04, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_11_09, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)