ET HUNTING SUSPICIOUS UA (iexplore)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"iexplore"; depth:8; fast_pattern; nocase;
http.host;
content:!"su.pctools.com";
content:!".advent.com";
target:src_ip;
Raw source ET HUNTING SUSPICIOUS UA (iexplore) · 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 HUNTING SUSPICIOUS UA (iexplore)";
    flow:established,to_server;
    http.user_agent;
    content:"iexplore"; depth:8; fast_pattern; nocase;
    http.host;
    content:!"su.pctools.com";
    content:!".advent.com";
    reference:md5,b0e8ce16c42dee20d2c1dfb1b87b3afc;
    classtype:bad-unknown;
    sid:2017365; rev:14;
    metadata:attack_target Client_Endpoint, created_at 2013_08_21, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_12;
    target:src_ip;
)

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.