alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Georbot initial checkin"; flow:to_server,established; http.method; content:"POST"; nocase; http.uri; content:".php?ver="; content:"&p=cert123"; fast_pattern; content:"&id="; classtype:command-and-control; sid:2015854; rev:4; metadata:created_at 2012_11_01, signature_severity Major, updated_at 2020_09_17;)