alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Dotka Chef EK .cache request"; flow:established,to_server; content:"Java/1"; http_user_agent; content:"/.cache/?f|3d|"; fast_pattern; http_uri; flowbits:set,et.exploitkitlanding; classtype:exploit-kit; sid:2017019; rev:3; metadata:created_at 2013_06_15, confidence High, signature_severity Major, updated_at 2019_10_08;)