alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO JAVA - Java Archive Download By Vulnerable Client"; flow:established,to_client; flowbits:isset,ET.http.javaclient.vulnerable; file.data; content:"PK"; startswith; classtype:misc-activity; sid:2014473; rev:8; metadata:attack_target Client_and_Server, created_at 2012_04_04, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_14; target:dest_ip;)