alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Metasploit Browser Exploit Server Plugin Detect 2"; flow:from_server,established; file_data; content:"var os_name|3b|"; content:"var os_vendor|3b|"; content:"var os_device|3b|"; content:"var os_flavor|3b|"; classtype:trojan-activity; sid:2020755; rev:2; metadata:affected_product Any, attack_target Client_and_Server, created_at 2015_03_26, deployment Perimeter, deployment Internet, deployment Internal, deployment Datacenter, signature_severity Critical, tag Metasploit, updated_at 2019_07_26;)