ET PHISHING [TW] EvilProxy AiTM Username Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/?username="; fast_pattern; startswith;
pcre:"/^/?username=[a-zA-Z0-9.-]+@[a-zA-Z0-9.]+.[a-zA-Z]{2,3}$/";
http.request_body;
content:"|7b 22|visitorId|22 3a 22|"; startswith;
content:"|22 2c 22|connect_token|22 3a 22|"; distance:32; within:19;
content:"|22 2c 22|connect_hash|22 3a 22|"; distance:36; within:18;
Raw source ET PHISHING [TW] EvilProxy AiTM Username Checkin · 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 -> $EXTERNAL_NET any (
    msg:"ET PHISHING [TW] EvilProxy AiTM Username Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/?username="; fast_pattern; startswith;
    pcre:"/^/?username=[a-zA-Z0-9.-]+@[a-zA-Z0-9.]+.[a-zA-Z]{2,3}$/";
    http.request_body;
    content:"|7b 22|visitorId|22 3a 22|"; startswith;
    content:"|22 2c 22|connect_token|22 3a 22|"; distance:32; within:19;
    content:"|22 2c 22|connect_hash|22 3a 22|"; distance:36; within:18;
    classtype:social-engineering;
    sid:2037849; 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 2022_07_29;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.