alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET SCAN Toata Scanner User-Agent Detected"; flow:to_server,established; threshold:type limit, count 1, seconds 60, track by_src; http.user_agent; content:"Toata dragostea|20|"; depth:16; reference:url,isc.sans.org/diary.html?storyid=5599; classtype:attempted-recon; sid:2009159; rev:9; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, updated_at 2020_10_13;)