alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING CoGUI Phish Landing Page M2 2026-01-29"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/y2.html"; fast_pattern; endswith; http.referer; content:"/"; pcre:"/^[a-z0-9]{27}$/Ri"; reference:url,urlscan.io/result/019c0994-ae75-709a-bfee-de3f8200fad6/; classtype:credential-theft; sid:2067195; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_01_29, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Phishing, tag CoGUI, tag CoAceV, updated_at 2026_01_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)