ET PHISHING Successful Webmail Phish M3 2016-06-22

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET PHISHING Successful Webmail Phish M3 2016-06-22";
    flow:from_server,established;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"text/html"; startswith;
    file.data;
    content:"Webmail|20 3a 3a 20|Verify"; fast_pattern; nocase;
    content:"Online Webmail App"; nocase; distance:0;
    content:"has been successfully verified"; nocase; distance:0;
    content:"Thank you for using our"; nocase; distance:0;
    content:"We will redirect you shortly"; nocase; distance:0;
    content:"Webmail Security Systems"; nocase; distance:0;
    classtype:credential-theft;
    sid:2032286; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2016_06_22, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)