alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Sweet Orange Landing Page Dec 09 2013"; flow:established,from_server; file_data; content:"display|3a| none|3b 22|"; nocase; content:">"; within:500; content:!">"; nocase; within:500; content:"f"; within:200; pcre:"/^(?P<sep>.{1,50})u(?P=sep)n(?P=sep)c(?P=sep)t(?P=sep)i(?P=sep)o(?P=sep)n(?P=sep)\s/R"; flowbits:set,et.exploitkitlanding; classtype:exploit-kit; sid:2017817; rev:11; metadata:created_at 2013_12_10, signature_severity Major, updated_at 2019_07_26;)