alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Generic Credential Phish Landing Page M2 2024-09-27"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/socket.io/?EIO="; content:"&transport=polling&t="; http.header.raw; content:"Auth_UID|3a 20|USER"; content:"UNIQUE"; distance:0; http.header; content:"Session_Email"; fast_pattern; reference:url,any.run/cybersecurity-blog/analysis-of-the-phishing-campaign/; classtype:social-engineering; sid:2056319; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_09_28, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Phishing, updated_at 2024_09_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)