ET USER_AGENTS Suspicious User-Agent (hi)

Query · suricata

flow:established,to_server;
http.header;
content:"User-Agent|3a 20|hi|0d 0a|"; nocase;
Raw source ET USER_AGENTS Suspicious User-Agent (hi) · 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 USER_AGENTS Suspicious User-Agent (hi)";
    flow:established,to_server;
    http.header;
    content:"User-Agent|3a 20|hi|0d 0a|"; nocase;
    classtype:trojan-activity;
    sid:2018381; rev:4;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2014_04_10, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2020_04_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.