alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Possible BHEK Landing URI Format"; flow:to_server,established; urilen:>41; content:".php"; http_uri; fast_pattern:only; pcre:"/\/[a-f0-9]{32}\/[a-z]+?\-[a-z]+?\.php/U"; classtype:exploit-kit; sid:2017376; rev:7; metadata:created_at 2013_08_27, confidence Medium, signature_severity Major, updated_at 2019_07_26;)