alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY libwww-perl User Agent"; flow:established,to_server; http.user_agent; content:"libwww-perl/"; nocase; reference:url,www.linpro.no/lwp/; classtype:attempted-recon; sid:2002934; rev:10; metadata:created_at 2010_07_30, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_06;)