alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Metasploit Various Java Exploit Common Class name"; flow:established,from_server; flowbits:isset,ET.http.javaclient; file_data; content:"PayloadX.class"; nocase; fast_pattern; classtype:attempted-user; sid:2018500; rev:7; metadata:affected_product Any, attack_target Client_and_Server, created_at 2014_05_27, deployment Perimeter, deployment Internet, deployment Internal, deployment Datacenter, signature_severity Critical, tag Metasploit, updated_at 2019_10_08;)