alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Generic Phish (set) 2019-05-14"; flow:established,to_server; flowbits:set,ET.genericphish; flowbits:noalert; http.method; content:"POST"; http.request_body; content:"uname="; depth:6; nocase; content:"&psw="; nocase; distance:0; fast_pattern; pcre:"/^uname=[^&]+&psw=/i"; classtype:credential-theft; sid:2031869; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_05_14, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_31, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)