alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN Nikto Web App Scan in Progress"; flow:established,to_server; threshold:type both, count 5, seconds 60, track by_src; http.user_agent; content:"(Nikto"; reference:url,www.cirt.net/code/nikto.shtml; classtype:web-application-attack; sid:2002677; rev:15; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2024_03_06;)