alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Netsparker Scan in Progress"; flow:to_server,established; threshold:type limit,track by_src,count 1,seconds 60; http.uri; content:"/Netsparker-"; reference:url,www.mavitunasecurity.com/communityedition/; classtype:attempted-recon; sid:2011030; rev:8; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2020_09_14;)