ET PHISHING Successful Excel Phish 2016-08-19

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET PHISHING Successful Excel Phish 2016-08-19";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"userid="; depth:7; nocase; fast_pattern;
    content:"&formtext"; nocase; distance:0;
    content:"&.save="; nocase; distance:0;
    classtype:credential-theft;
    sid:2032489; rev:5;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_08_19, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_09_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)