ET PHISHING Successful Mailbox Upgrade Phish 2016-06-27 M1

Query · suricata

flow:to_client,established;
http.stat_code;
content:"200";
http.content_type;
content:"text/html"; startswith;
file.data;
content:"<title>Mail Upgrade"; nocase; fast_pattern;
content:"form class=|22|form-signin"; nocase; distance:0;
content:"Please wait"; nocase; distance:0;
content:"id=|22|success"; nocase; distance:0;
content:"Email account upgraded"; nocase; distance:0;
Raw source ET PHISHING Successful Mailbox Upgrade Phish 2016-06-27 M1 · 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 Successful Mailbox Upgrade Phish 2016-06-27 M1";
    flow:to_client,established;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"text/html"; startswith;
    file.data;
    content:"<title>Mail Upgrade"; nocase; fast_pattern;
    content:"form class=|22|form-signin"; nocase; distance:0;
    content:"Please wait"; nocase; distance:0;
    content:"id=|22|success"; nocase; distance:0;
    content:"Email account upgraded"; nocase; distance:0;
    classtype:credential-theft;
    sid:2032023; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2016_06_27, 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;
)

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