alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN Tomcat Web Application Manager scanning"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/manager/html"; nocase; fast_pattern; http.header; content:"Authorization|3a 20|Basic"; content:!"Proxy-Authorization|3a 20|Basic"; nocase; http.user_agent; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; depth:38; endswith; classtype:attempted-recon; sid:2010019; rev:11; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2020_10_17;)