ET PHISHING [TW] EvilProxy AiTM Microsoft HTTP HOST M7

Query · suricata

flow:established,to_server;
http.host;
content:"aadcdn-msauth-"; startswith; fast_pattern;
pcre:"/[a-f0-9]{8}./R";
threshold:type limit, count 1, seconds 30, track by_src;
Raw source ET PHISHING [TW] EvilProxy AiTM Microsoft HTTP HOST M7 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET PHISHING [TW] EvilProxy AiTM Microsoft HTTP HOST M7";
    flow:established,to_server;
    http.host;
    content:"aadcdn-msauth-"; startswith; fast_pattern;
    pcre:"/[a-f0-9]{8}./R";
    threshold:type limit, count 1, seconds 30, track by_src;
    classtype:social-engineering;
    sid:2037857; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_07_29, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_04;
)

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