alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Java Url Lib User Agent Web Crawl (Inbound)"; flow:established,to_server; http.user_agent; content:"Java/"; nocase; pcre:"/^\d\d?\.\d/Ri"; threshold:type both, track by_src, count 10, seconds 60; reference:url,www.mozilla.org/docs/netlib/seealso/netmods.html; classtype:misc-activity; sid:2002945; rev:15; metadata:attack_target Web_Server, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_04_28; target:dest_ip;)