alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Evil Redirector Leading to EK Dec 09"; flow:established,from_server; file_data; content:"<!--/"; fast_pattern; content:"<!--"; pcre:"/^(?P<ccode>[a-f0-9]{6})-->.*?<script.+?<\/script>.*?<!--/(?P=ccode)-->/Rsi"; classtype:exploit-kit; sid:2022242; rev:4; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2015_12_10, deployment Perimeter, confidence High, signature_severity Major, tag Redirector, updated_at 2019_10_08;)