alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Java Downloading Archive flowbit no alert"; flow:established,from_server; flowbits:isset,ET.http.javaclient; file_data; content:"PK"; within:2; flowbits:set,et.JavaArchiveOrClass; flowbits:noalert; classtype:misc-activity; sid:2017748; rev:6; metadata:created_at 2013_11_25, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)