alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.Agent.pt User-Agent Detected"; flow:established,to_server; http.user_agent; content:"Machaon"; depth:7; endswith; classtype:trojan-activity; sid:2007663; rev:8; metadata:created_at 2010_07_30, confidence High, signature_severity Major, updated_at 2020_10_19;)