ET SCAN Suspicious User-Agent Containing Web Scan/er Likely Web Scanner

Query · suricata

flow:established,to_server;
http.user_agent;
content:"web"; nocase; depth:200;
content:"scan"; nocase; distance:0;
Raw source ET SCAN Suspicious User-Agent Containing Web Scan/er Likely Web Scanner · 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 -> $HTTP_SERVERS any (
    msg:"ET SCAN Suspicious User-Agent Containing Web Scan/er Likely Web Scanner";
    flow:established,to_server;
    http.user_agent;
    content:"web"; nocase; depth:200;
    content:"scan"; nocase; distance:0;
    classtype:attempted-recon;
    sid:2010088; rev:7;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag User_Agent, updated_at 2020_08_06;
)

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.