alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Possible Successful Yahoo Phish Nov 25 2013"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/yahoo.php"; fast_pattern; http.request_body; content:"Sign+In"; nocase; classtype:credential-theft; sid:2017751; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2013_11_25, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_11, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)