ET PHISHING Data Submitted to MyFreeSites.com - Possible Phishing

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET PHISHING Data Submitted to MyFreeSites.com - Possible Phishing";
    flow:to_server,established;
    urilen:12;
    http.method;
    content:"POST";
    http.uri;
    content:"/form/Submit"; fast_pattern;
    http.header;
    content:"myfreesites.net|0d 0a|";
    content:"X-Requested-With|3a 20|XMLHttpRequest|0d 0a|";
    http.request_body;
    content:"{|22|siteID|22 3a|"; depth:10;
    http.accept;
    content:"application/json, text/javascript"; startswith;
    http.content_type;
    content:"application/json"; startswith;
    classtype:trojan-activity;
    sid:2032025; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2016_06_28, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_15, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)