alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Unknown EK Jar 1 June 12 2013"; flow:established,to_server; content:"/6u27.jar"; http_uri; content:"Java/1."; http_user_agent; classtype:exploit-kit; sid:2017016; rev:7; metadata:created_at 2013_06_13, confidence Medium, signature_severity Major, updated_at 2019_07_26;)