alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET P2P Libtorrent User-Agent"; flow:established,to_server; http.user_agent; content:"libtorrent"; nocase; classtype:policy-violation; sid:2012390; rev:7; metadata:created_at 2011_02_27, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_06;)