alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32.SillyFDC Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php"; nocase; content:"getowner=1&uniqueid="; fast_pattern; http.user_agent; content:"WinHttp.WinHttpRequest"; startswith; classtype:command-and-control; sid:2010268; rev:6; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2024_02_22;)