ET WEB_CLIENT Tech Support Phone Scam Landing M1 Jun 29 2016

Query · suricata

flow:from_server,established;
http.stat_code;
content:"401";
http.header;
content:"WWW-Authenticate|3a 20|Basic realm=|22|"; nocase;
content:"has been blocked"; nocase; distance:0; fast_pattern;
Raw source ET WEB_CLIENT Tech Support Phone Scam Landing M1 Jun 29 2016 · 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 WEB_CLIENT Tech Support Phone Scam Landing M1 Jun 29 2016";
    flow:from_server,established;
    http.stat_code;
    content:"401";
    http.header;
    content:"WWW-Authenticate|3a 20|Basic realm=|22|"; nocase;
    content:"has been blocked"; nocase; distance:0; fast_pattern;
    classtype:social-engineering;
    sid:2022925; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2016_06_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Phishing, updated_at 2020_08_11;
)

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