alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT HellSpawn EK Requesting Jar"; flow:established,to_server; http.uri; content:"/j21.jar"; fast_pattern; http.user_agent; content:"Java/1."; classtype:exploit-kit; sid:2016832; rev:8; metadata:created_at 2013_05_07, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_17;)