# Author: Justin Henderson
#         SANS Instructor and author of SANS SEC555: SIEM and Tactical Analytics
# Updated by: Doug Burks
# Last Update: 2/7/2018
#
# This conf file is based on accepting logs for signatures.log from Bro systems
filter {
  if [type] == "bro_signatures" {
        # If message looks like json, try to parse it as such. Otherwise, fall back to csv or grok.
        if [message] =~ /^{.*}$/ {
                json {
                        source => "message"
                }

                mutate {
                        rename => { "ts" => "timestamp" }
                        #uid
                        rename => { "id.orig_h" => "source_ip" }
                        rename => { "id.orig_p" => "source_port" }
                        rename => { "id.resp_h" => "destination_ip" }
                        rename => { "id.resp_p" => "destination_port" }
			#note
			rename => { "sig_id" => "signature_id" }
			rename => { "event_msg" => "event_message" }
			rename => { "sub_msg" => "sub_message" }
			rename => { "sig_count" => "signature_count" }
			#host_count
		}
	} else {
	    mutate {
	      gsub => [ "message", "[\"']", "" ]
	    }
	    csv {
	      columns => ["timestamp","uid","source_ip","source_port","destination_ip","destination_port","note","signature_id","event_message","sub_message","signature_count","host_count"]
	      separator => "	"
	    }
	}

	mutate {
		#add_tag => [ "conf_file_1111"]
	}
  }	
}
