alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Delf Download via HTTP"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/mdfexcute/"; http.user_agent; content:"Windows 98)"; classtype:trojan-activity; sid:2007911; rev:8; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2024_02_09;)