alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT HiMan EK Exploit URI Struct"; flow:established,to_server; http.uri; content:"=687474703a2f2f"; fast_pattern; content:".php?"; pcre:"/\/(?:d|xie|fla)\.php\?[a-z]+?=687474703a2f2f/"; classtype:exploit-kit; sid:2017851; rev:3; metadata:created_at 2013_12_13, confidence High, signature_severity Major, updated_at 2024_03_16;)