alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN DotDotPwn User-Agent"; flow:established,to_server; threshold:type limit, track by_src,count 1, seconds 60; http.user_agent; content:"DotDotPwn"; nocase; startswith; reference:url,dotdotpwn.sectester.net; classtype:attempted-recon; sid:2011915; rev:4; metadata:created_at 2010_11_09, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_04;)