alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT HiMan EK Exploit URI Struct"; flow:to_server,established; content:"=687474703a2f2f"; http_uri; content:".php?"; http_uri; pcre:"/\/(?:d|xie|fla)\.php\?[a-z]+?=687474703a2f2f/U"; classtype:exploit-kit; sid:2017851; rev:2; metadata:created_at 2013_12_13, confidence High, signature_severity Major, updated_at 2019_07_26;)