alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT SofosFO 20 Dec 12 - .jar file request"; flow:established,to_server; flowbits:set,et.exploitkitlanding; urilen:>44; http.uri; content:".jar"; fast_pattern; offset:38; endswith; pcre:"/^\/[a-zA-Z0-9]{25,35}\/\d{9,10}\/[a-z]{4,12}\.jar$/"; http.user_agent; content:"Java/1."; classtype:exploit-kit; sid:2016071; rev:6; metadata:created_at 2012_12_21, signature_severity Major, updated_at 2024_03_17;)