ET PHISHING Possible Phishing Landing Captcha Check

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
file.data;
content:"<title>Security Check";
content:"function verifyCaptcha()"; distance:0;
content:"var blockerurl"; distance:0;
content:"email_par"; distance:0;
content:"window.location.replace(blockerurl+"; fast_pattern; distance:0;
content:".php|22 20|onsubmit=|22|return verifyCaptcha()"; distance:0;
Raw source ET PHISHING Possible Phishing Landing Captcha Check · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET PHISHING Possible Phishing Landing Captcha Check";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file.data;
    content:"<title>Security Check";
    content:"function verifyCaptcha()"; distance:0;
    content:"var blockerurl"; distance:0;
    content:"email_par"; distance:0;
    content:"window.location.replace(blockerurl+"; fast_pattern; distance:0;
    content:".php|22 20|onsubmit=|22|return verifyCaptcha()"; distance:0;
    classtype:social-engineering;
    sid:2030610; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_07_29, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)

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