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11_beats_logs.conf
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########################
# parsing of logs/metrics specific to the operation of
# Malcolm and Hedgehog Linux itself (i.e., not captured
# network traffic metadata, but operational metadata)
#
# Copyright (c) 2025 Battelle Energy Alliance, LLC. All rights reserved.
#######################
filter {
# move a couple of things identifying the event source from under miscbeat up to the top level
if ([miscbeat][message][module]) and (![miscbeat][module]) {
# special case to handle fluent-bit -> fluentd.loomsystems -> filebeat TCP input
# move entire "message" contents up to root
# https://github.com/idaholab/Malcolm/issues/318
ruby {
id => "ruby_miscbeat_message_move_up"
code => "
event.get('[miscbeat][message]').each { |k, v|
event.set('[miscbeat][' + k + ']', v)
}
event.remove('[miscbeat][message]')
"
}
}
if ([miscbeat][host]) {
ruby {
id => "ruby_miscbeat_host_merge"
path => "/usr/share/logstash/malcolm-ruby/hash_merge.rb"
script_params => {
"source" => "[miscbeat][host]"
"target" => "[host]"
}
remove_field => [ "[miscbeat][host]" ]
}
}
if ([miscbeat][agent]) {
ruby {
id => "ruby_miscbeat_agent_merge"
path => "/usr/share/logstash/malcolm-ruby/hash_merge.rb"
script_params => {
"source" => "[miscbeat][agent]"
"target" => "[agent]"
}
remove_field => [ "[miscbeat][agent]" ]
}
}
if (![host][name]) and ([agent][hostname]) {
mutate { id => "mutate_beats_add_field_host_name_agent_hostname"
add_field => { "[host][name]" => "%{[agent][hostname]}" } }
}
if ([agent][type] == "filebeat") and ([event][module] == "nginx") {
#############################################################################################################################
# nginx access and error logs
# parse log fields
if ([event][dataset] == "nginx.access") {
grok {
id => "grok_beat_nginx_access"
patterns_dir => "/usr/share/logstash/malcolm-patterns"
match => { "[event][original]" => "%{NGINX_ACCESS}" }
}
}
if ([event][dataset] == "nginx.error") {
grok {
id => "grok_beat_nginx_error"
patterns_dir => "/usr/share/logstash/malcolm-patterns"
match => { "[event][original]" => "%{NGINX_ERROR}" }
}
}
# save nginx log timestamp over @timestamp
if ([timestamp]) {
date {
id => "date_beats_nginx_timestamp"
match => [ "[timestamp]", "dd/MMM/yyyy:HH:mm:ss Z", "yyyy/MM/dd HH:mm:ss" ]
target => "[@timestamp]"
remove_field => [ "[timestamp]" ]
}
}
# set agent.type to "nginx"
mutate { id => "mutate_replace_agent_type_beats_filebeat_nginx"
replace => { "[agent][type]" => "nginx" } }
} else if ("_malcolm_miscbeat" in [tags]) or ([miscbeat]) {
#############################################################################################################################
# misc. sensor metrics and logs from fluentbit received by filebeat TCP input
# https://docs.fluentbit.io/manual/
# https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-input-tcp.html
# set event.module to whatever we set "module" to when running fluentbit
if ([miscbeat][module]) {
mutate { id => "mutate_replace_event_module_miscbeat_module"
replace => { "[event][module]" => "%{[miscbeat][module]}" }
remove_field => [ "[miscbeat][module]" ] }
}
# convert fluentbit's date field and save it to @timestamp
if ([miscbeat][date]) {
date {
id => "date_beats_miscbeat_date"
match => [ "[miscbeat][date]", "UNIX" ]
target => "[@timestamp]"
remove_field => [ "[miscbeat][date]" ]
}
}
if ([miscbeat][aide]) {
#-------------------------------------------------
# fluentbit exec of AIDE
# https://aide.github.io/
# parse AIDE run start_time and end_time
if ([miscbeat][aide][start_time]) {
date {
id => "date_beats_miscbeat_aide_start_time"
match => [ "[miscbeat][aide][start_time]", "yyyy-MM-dd HH:mm:ss Z" ]
target => "[miscbeat][aide][start_time]"
}
}
if ([miscbeat][aide][end_time]) {
date {
id => "date_beats_miscbeat_aide_end_time"
match => [ "[miscbeat][aide][end_time]", "yyyy-MM-dd HH:mm:ss Z" ]
target => "[miscbeat][aide][end_time]"
}
}
# set action (changed, added, removed files/directories)
ruby {
id => "ruby_miscbeat_aide_action"
code => "
actions = Array.new
actions.push('add') if (event.get('[miscbeat][aide][number_of_entries][added]').to_i > 0)
actions.push('change') if (event.get('[miscbeat][aide][number_of_entries][changed]').to_i > 0)
actions.push('remove') if (event.get('[miscbeat][aide][number_of_entries][removed]').to_i > 0)
event.set('[event][action]', actions) unless (actions.length == 0)
"
}
# convert hash of hashes to arrays of hashes so we don't end up creating a new
# dynamically-mapped field for every single file/directory
if ([miscbeat][aide][details]) {
ruby {
id => "ruby_miscbeat_aide_details_hashform"
path => "/usr/share/logstash/malcolm-ruby/hashhash_to_hasharray.rb"
script_params => {
"source" => "[miscbeat][aide][details]"
"target_hash_array" => "[miscbeat][aide][details]"
"target_keys_array" => "[file][path]"
"name_key" => "path"
}
}
}
if ([miscbeat][aide][databases]) {
ruby {
id => "ruby_miscbeat_aide_databases_hashform"
path => "/usr/share/logstash/malcolm-ruby/hashhash_to_hasharray.rb"
script_params => {
"source" => "[miscbeat][aide][databases]"
"target_hash_array" => "[miscbeat][aide][databases]"
"name_key" => "path"
}
}
}
if ([miscbeat][aide][added]) {
ruby {
id => "ruby_miscbeat_aide_added_to_array"
path => "/usr/share/logstash/malcolm-ruby/hashhash_to_hasharray.rb"
script_params => {
"source" => "[miscbeat][aide][added]"
"target_keys_array" => "[miscbeat][aide][added]"
}
}
}
if ([miscbeat][aide][changed]) {
ruby {
id => "ruby_miscbeat_aide_changed_to_array"
path => "/usr/share/logstash/malcolm-ruby/hashhash_to_hasharray.rb"
script_params => {
"source" => "[miscbeat][aide][changed]"
"target_keys_array" => "[miscbeat][aide][changed]"
}
}
}
if ([miscbeat][aide][removed]) {
ruby {
id => "ruby_miscbeat_aide_removed_to_array"
path => "/usr/share/logstash/malcolm-ruby/hashhash_to_hasharray.rb"
script_params => {
"source" => "[miscbeat][aide][removed]"
"target_keys_array" => "[miscbeat][aide][removed]"
}
}
}
# merge file.path to contain all related file names/paths
ruby {
id => "ruby_miscbeat_aide_merge_paths"
code => "
paths = event.get('[file][path]').to_a +
event.get('[miscbeat][aide][added]').to_a +
event.get('[miscbeat][aide][changed]').to_a +
event.get('[miscbeat][aide][removed]').to_a
event.set('[file][path]', paths.uniq.flatten.reject{ |e| e.nil? || e&.empty? }) unless (paths.length == 0)
"
}
# rename miscbeat.aide.outline to event.result and translate clunky result messages
if ([miscbeat][aide][outline]) {
mutate { id => "mutate_rename_miscbeat_aide_outline"
rename => { "[miscbeat][aide][outline]" => "[event][result]" } }
if ([event][result] =~ /^AIDE found NO differences/) {
mutate { id => "mutate_replace_miscbeat_aide_result_no_differences"
replace => { "[event][result]" => "Success" } }
} else if ([event][result] =~ /^AIDE found differences/) {
mutate { id => "mutate_replace_miscbeat_aide_result_differences"
replace => { "[event][result]" => "Failure" } }
}
}
# generate unique ID
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_aide"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][aide][number_of_entries][total]",
"[miscbeat][aide][number_of_entries][added]",
"[miscbeat][aide][number_of_entries][removed]",
"[miscbeat][aide][number_of_entries][changed]",
"[event][result]",
"[miscbeat][aide][start_time]",
"[miscbeat][aide][end_time]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][aide])
if ([miscbeat][auditlog]) {
#-------------------------------------------------
# fluentbit tail of /var/log/audit/audit.log
# https://man7.org/linux/man-pages/man5/auditd.conf.5.html
ruby {
id => "ruby_miscbeat_auditlog_remove_empty_values"
path => "/usr/share/logstash/malcolm-ruby/compact_event.rb"
}
if ([miscbeat][auditlog][grantors]) {
mutate { id => "mutate_split_miscbeat_auditlog_grantors"
split => { "[miscbeat][auditlog][grantors]" => "," } }
}
if (![miscbeat][auditlog][success]) and
([miscbeat][auditlog][res] =~ /^success'?$/) {
mutate { id => "mutate_miscbeat_auditlog_res_success"
add_field => { "[miscbeat][auditlog][success]" => "yes" }
remove_field => [ "[miscbeat][auditlog][res]" ] }
}
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_auditlog"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][auditlog][ses]",
"[miscbeat][auditlog][type]",
"[miscbeat][auditlog][SYSCALL]",
"[miscbeat][auditlog][acct]",
"[miscbeat][auditlog][UID]",
"[miscbeat][auditlog][exe]",
"[miscbeat][auditlog][msg]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][auditlog])
if ([miscbeat][kmsg]) {
#-------------------------------------------------
# kmsg - https://docs.fluentbit.io/manual/pipeline/inputs/kernel-logs
mutate { id => "mutate_rename_miscbeat_kmsg"
rename => { "[miscbeat][kmsg][msg]" => "[event][original]" } }
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_kmsg"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][kmsg][sequence]",
"[miscbeat][kmsg][priority]",
"[event][original]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][kmsg])
if ([miscbeat][cpu]) {
#-------------------------------------------------
# cpu - https://docs.fluentbit.io/manual/pipeline/inputs/cpu-metrics
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_cpu"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][cpu][cpu_p]",
"[miscbeat][cpu][system_p]",
"[miscbeat][cpu][user_p]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][cpu])
if ([miscbeat][mem]) {
#-------------------------------------------------
# mem - https://docs.fluentbit.io/manual/pipeline/inputs/memory-metrics
if (![event][hash]) {
if ([miscbeat][mem][Mem][used]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_mem_total"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][mem][Mem][used]",
"[miscbeat][mem][Mem][free]",
"[miscbeat][mem][Mem][total]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
} else if ([miscbeat][mem][Mem][used_p]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_mem_used_p"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][mem][Mem][used_p]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
}
} # if ([miscbeat][mem])
if ([miscbeat][disk]) {
#-------------------------------------------------
# disk - https://docs.fluentbit.io/manual/pipeline/inputs/disk-io-metrics
if ([miscbeat][disk][df][details]) {
ruby {
id => "ruby_miscbeat_disk_df_sum"
code => "
if dfentries = event.get('[miscbeat][disk][df][details]') then
size, used, avail = 0, 0, 0
dfentries.each do |dfentry|
size = size + dfentry.dig('size').to_i
used = used + dfentry.dig('used').to_i
avail = avail + dfentry.dig('avail').to_i
end
event.set('[miscbeat][disk][df][size]', size)
event.set('[miscbeat][disk][df][used]', used)
event.set('[miscbeat][disk][df][avail]', avail)
end"
}
}
if (![event][hash]) {
if ([miscbeat][disk][read_size]) and ([miscbeat][disk][write_size]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_disk_read_write"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][disk][read_size]",
"[miscbeat][disk][write_size]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
} else {
fingerprint {
id => "fingerprint_malcolm_miscbeat_disk"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][disk][df][size]",
"[miscbeat][disk][df][used]",
"[miscbeat][disk][df][avail]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # ![event][hash]
} # if ([miscbeat][disk])
if ([miscbeat][network]) {
#-------------------------------------------------
# not using fluent-bit netif input, rolled my own with /proc/net/dev and jq
mutate { id => "mutate_rename_miscbeat_network_interfaces"
rename => { "[miscbeat][network][interfaces]" => "[miscbeat][network][details]" } }
ruby {
id => "ruby_miscbeat_network_details_sum"
code => "
if interfaces = event.get('[miscbeat][network][details]') then
bytes_tx, bytes_rx, packets_tx, packets_rx, errors_tx, errors_rx, drop_tx, drop_rx = 0, 0, 0, 0, 0, 0, 0, 0
interfaces.each do |key, value|
bytes_tx = bytes_tx + value.dig('tx_bytes').to_i
bytes_rx = bytes_rx + value.dig('rx_bytes').to_i
packets_tx = packets_tx + value.dig('tx_packets').to_i
packets_rx = packets_rx + value.dig('rx_packets').to_i
errors_tx = errors_tx + value.dig('tx_errs').to_i
errors_rx = errors_rx + value.dig('rx_errs').to_i
drop_tx = drop_tx + value.dig('tx_drop').to_i
drop_rx = drop_rx + value.dig('rx_drop').to_i
end
event.set('[miscbeat][network][interface]', interfaces.keys)
event.set('[miscbeat][network][bytes][tx]', bytes_tx)
event.set('[miscbeat][network][bytes][rx]', bytes_rx)
event.set('[miscbeat][network][bytes][total]', bytes_tx+bytes_rx)
event.set('[miscbeat][network][packets][tx]', packets_tx)
event.set('[miscbeat][network][packets][rx]', packets_rx)
event.set('[miscbeat][network][packets][total]', packets_tx+packets_rx)
event.set('[miscbeat][network][errors][tx]', errors_tx)
event.set('[miscbeat][network][errors][rx]', errors_rx)
event.set('[miscbeat][network][errors][total]', errors_tx+errors_rx)
event.set('[miscbeat][network][drops][tx]', drop_tx)
event.set('[miscbeat][network][drops][rx]', drop_rx)
event.set('[miscbeat][network][drops][total]', drop_tx+drop_rx)
end"
remove_field => [ "[miscbeat][network][details]" ]
}
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_network"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][network][bytes][total]",
"[miscbeat][network][packets][total]",
"[miscbeat][network][errors][total]",
"[miscbeat][network][drops][total]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][network])
if ([miscbeat][proc]) {
#-------------------------------------------------
# proc - https://docs.fluentbit.io/manual/pipeline/inputs/process
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_proc"
source => [ "[host][name]",
"[event][module]",
"[miscbeat][proc][proc_name]",
"[miscbeat][proc][pid]",
"[miscbeat][proc][fd]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][proc])
if ([miscbeat][syslog]) {
#-------------------------------------------------
# syslog via fluent-bit - https://docs.fluentbit.io/manual/pipeline/inputs/syslog
# time gets parsed into the miscbeat.date field, this is redundant
mutate { id => "mutate_miscbeat_remove_syslog_time"
remove_field => [ "[miscbeat][syslog][time]" ] }
# rename syslog fields according to ECS
# https://www.elastic.co/guide/en/ecs/current/ecs-log.html#field-log-syslog
mutate { id => "mutate_rename_miscbeat_syslog"
rename => { "[miscbeat][syslog][ident]" => "[log][syslog][appname]" }
rename => { "[miscbeat][syslog][pid]" => "[log][syslog][procid]" }
rename => { "[miscbeat][syslog][pri]" => "[log][syslog][priority]" }
rename => { "[miscbeat][syslog][message]" => "[event][original]" }
rename => { "[miscbeat][syslog][host]" => "[log][syslog][hostname]" }
}
# convert syslog "priority" number to "severity" and "facility" and map to human-readable names
if ([log][syslog][priority]) {
ruby {
id => "ruby_log_syslog_priority_convert"
code => "
if pri = event.get('[log][syslog][priority]').to_i then
event.set('[log][syslog][severity][code]', pri % 8)
event.set('[log][syslog][facility][code]', pri / 8)
end"
}
if ([log][syslog][severity][code]) {
translate {
id => "translate_sensor_syslog_severity_code"
source => "[log][syslog][severity][code]"
target => "[log][syslog][severity][name]"
dictionary_path => "/etc/syslog_severity_levels.yaml"
}
}
if ([log][syslog][facility][code]) {
translate {
id => "translate_sensor_syslog_facility_code"
source => "[log][syslog][facility][code]"
target => "[log][syslog][facility][name]"
dictionary_path => "/etc/syslog_facility_codes.yaml"
}
}
}
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_syslog"
source => [ "[host][name]",
"[event][module]",
"[log][syslog][severity][code]",
"[log][syslog][facility][code]",
"[log][syslog][appname]",
"[event][original]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][syslog])
if ([miscbeat][systemd]) {
#-------------------------------------------------
# systemd - https://docs.fluentbit.io/manual/pipeline/inputs/systemd
# see also - https://www.freedesktop.org/software/systemd/man/latest/systemd.journal-fields.html
if ([miscbeat][systemd][source_realtime_timestamp]) {
# microseconds to milliseconds
ruby {
id => "ruby_miscbeat_systemd_source_realtime_timestamp_calc"
code => "
event.set('[miscbeat][systemd][source_realtime_timestamp]',
(event.get('[miscbeat][systemd][source_realtime_timestamp]').to_i / 1000))
"
}
# milliseconds to date
date {
id => "date_beats_miscbeat_systemd_source_realtime_timestamp"
match => [ "[miscbeat][systemd][source_realtime_timestamp]", "UNIX_MS" ]
target => "[miscbeat][systemd][source_realtime_timestamp]"
}
}
# rename fields according to ECS
# https://www.elastic.co/guide/en/ecs/current/ecs-process.html
# https://www.elastic.co/guide/en/ecs/current/ecs-log.html
mutate { id => "mutate_rename_miscbeat_systemd_log_fields"
# todo: translate this to CAP_BPF, CAP_SYS_ADMIN, etc.
rename => { "[miscbeat][systemd][cap_effective]" => "[process][thread][capabilities][effective]" }
rename => { "[miscbeat][systemd][cmdline]" => "[process][command_line]" }
rename => { "[miscbeat][systemd][code_file]" => "[log][origin][file][name]" }
rename => { "[miscbeat][systemd][code_func]" => "[log][origin][function]" }
rename => { "[miscbeat][systemd][code_line]" => "[log][origin][file][line]" }
rename => { "[miscbeat][systemd][comm]" => "[process][name]" }
rename => { "[miscbeat][systemd][exe]" => "[process][executable]" }
rename => { "[miscbeat][systemd][gid]" => "[process][group_leader][pid]" }
rename => { "[miscbeat][systemd][pid]" => "[process][pid]" }
rename => { "[miscbeat][systemd][syslog_facility]" => "[log][syslog][facility][code]" }
rename => { "[miscbeat][systemd][syslog_identifier]" => "[log][syslog][appname]" }
rename => { "[miscbeat][systemd][syslog_pid]" => "[log][syslog][procid]" }
rename => { "[miscbeat][systemd][systemd_owner_uid]" => "[process][real_user][id]" }
rename => { "[miscbeat][systemd][tid]" => "[process][thread][id]" }
rename => { "[miscbeat][systemd][uid]" => "[process][user][id]" }
rename => { "[miscbeat][systemd][transport]" => "[log][logger]" }
}
if ([log][syslog][facility][code]) {
translate {
id => "translate_sensor_systemd_syslog_facility_code"
source => "[log][syslog][facility][code]"
target => "[log][syslog][facility][name]"
dictionary_path => "/etc/syslog_facility_codes.yaml"
}
}
# store raw message text as event.original
if ([miscbeat][systemd][syslog_raw]) {
mutate { id => "mutate_rename_miscbeat_systemd_syslog_raw"
rename => { "[miscbeat][systemd][syslog_raw]" => "[event][original]" } }
} else if ([miscbeat][systemd][message]) {
mutate { id => "mutate_rename_miscbeat_systemd_message"
rename => { "[miscbeat][systemd][message]" => "[event][original]" } }
}
#
if ([miscbeat][systemd][errno]) {
mutate { id => "mutate_rename_miscbeat_systemd_errno"
rename => { "[miscbeat][systemd][errno]" => "[event][result]" } }
}
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_systemd"
source => [ "[host][name]",
"[event][module]",
"[process][pid]",
"[process][user][id]",
"[process][thread][id]",
"[process][group_leader][pid]",
"[miscbeat][systemd][unit]",
"[miscbeat][systemd][comm]",
"[miscbeat][systemd][exe]",
"[miscbeat][systemd][cmdline]",
"[miscbeat][systemd][machine_id]",
"[event][original]",
"[miscbeat][systemd][message_id]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # if ([miscbeat][systemd])
if ([miscbeat][thermal]) {
#-------------------------------------------------
# thermal - https://docs.fluentbit.io/manual/pipeline/inputs/thermal
if ([miscbeat][thermal][temp]) {
# don't bother saving 0.0 temperatures
ruby { id => "ruby_miscbeat_thermal_temp_drop_zeroes"
code=> "event.cancel unless event.get('[miscbeat][thermal][temp]')&.nonzero?" }
}
} # if ([miscbeat][thermal])
# merge winevtlog and winlog (from fluent-bit)
if ([miscbeat][winevtlog]) or ([miscbeat][winlog]) {
ruby {
id => "ruby_winlog_remove_empty_values"
path => "/usr/share/logstash/malcolm-ruby/compact_event.rb"
}
# save event.module to agent.type before we replace it
mutate { id => "mutate_replace_agent_type_beats_fluentbit_winlog"
replace => { "[agent][type]" => "%{[event][module]}" } }
mutate { id => "mutate_add_field_os_family_winlog"
add_field => { "[os][family]" => "windows" } }
mutate { id => "mutate_add_field_os_type_winlog"
add_field => { "[os][type]" => "windows" } }
mutate { id => "mutate_replace_fluentbit_winlog_event_module"
replace => { "[event][module]" => "winlog" } }
if ([miscbeat][winevtlog]) {
if ([miscbeat][winevtlog][Level]) {
translate {
id => "translate_miscbeat_winevtlog_level_to_eventtype"
source => "[miscbeat][winevtlog][Level]"
target => "[miscbeat][winevtlog][EventType]"
dictionary_path => "/etc/winlog_levels_to_name.yaml"
}
}
mutate { id => "mutate_rename_miscbeat_winevtlog_winlog_ecs"
rename => { "[miscbeat][winevtlog]" => "[winlog]" } }
} else if ([miscbeat][winlog]) {
mutate { id => "mutate_rename_miscbeat_winlog_winlog_ecs"
rename => { "[miscbeat][winlog]" => "[winlog]" } }
}
if ([winlog][EventType]) and (![winevtlog][Level]) {
translate {
id => "translate_winlog_eventtype_to_level"
source => "[winlog][EventType]"
target => "[winlog][Level]"
dictionary_path => "/etc/winlog_levels_to_numbers.yaml"
}
}
mutate { id => "mutate_rename_fluentbit_winlog"
rename => { "[winlog][ActivityID]" => "[winlog][activity_id]" }
rename => { "[winlog][Computer]" => "[winlog][computer_name]" }
rename => { "[winlog][Channel]" => "[winlog][channel]" }
rename => { "[winlog][Data]" => "[winlog][data]" }
rename => { "[winlog][ComputerName]" => "[winlog][computer_name]" }
rename => { "[winlog][EventCategory]" => "[winlog][task]" }
rename => { "[winlog][EventID]" => "[winlog][event_id]" }
rename => { "[winlog][EventRecordID]" => "[winlog][record_id]" }
rename => { "[winlog][EventType]" => "[log][level]" }
rename => { "[winlog][Keywords]" => "[winlog][keywords]" }
rename => { "[winlog][Level]" => "[winlog][level]" }
rename => { "[winlog][Message]" => "[event][original]" }
rename => { "[winlog][Opcode]" => "[winlog][opcode]" }
rename => { "[winlog][Qualifiers]" => "[winlog][qualifiers]" }
rename => { "[winlog][ProcessID]" => "[winlog][process][pid]" }
rename => { "[winlog][ProviderGuid]" => "[winlog][provider_guid]" }
rename => { "[winlog][ProviderName]" => "[winlog][provider_name]" }
rename => { "[winlog][RelatedActivityID]" => "[winlog][related_activity_id]" }
rename => { "[winlog][Sid]" => "[winlog][sid]" }
rename => { "[winlog][StringInserts]" => "[winlog][string_inserts]" }
rename => { "[winlog][SourceName]" => "[winlog][provider_name]" }
rename => { "[winlog][Task]" => "[winlog][task]" }
rename => { "[winlog][ThreadID]" => "[winlog][process][thread][id]" }
rename => { "[winlog][TimeCreated]" => "[winlog][time_created]" }
rename => { "[winlog][TimeGenerated]" => "[winlog][time_created]" }
rename => { "[winlog][TimeWritten]" => "[winlog][time_written]" }
rename => { "[winlog][UserID]" => "[winlog][user][identifier]" }
rename => { "[winlog][Version]" => "[winlog][version]" }
}
if ([winlog][EventType]) {
mutate { id => "mutate_merge_winlog_eventtype_result"
merge => { "[event][result]" => "[winlog][EventType]" } }
}
if ([winlog][time_created]) {
date {
id => "date_fluentbit_winlog_time_created"
match => [ "[winlog][time_created]", "yyyy-MM-dd HH:mm:ss Z" ]
target => "[winlog][time_created]"
}
}
if ([winlog][time_written]) {
date {
id => "date_fluentbit_winlog_time_written"
match => [ "[winlog][time_written]", "yyyy-MM-dd HH:mm:ss Z" ]
target => "[winlog][time_written]"
}
}
# generate unique ID
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_fluentbit_winlog"
source => [ "[winlog][computer_name]",
"[agent][type]",
"[winlog][channel]",
"[winlog][provider_name]",
"[winlog][event_id]",
"[winlog][record_id]",
"[event][original]",
"[winlog][time_created]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # ([winevtlog]) or ([winlog])
if ([miscbeat][winstat]) {
mutate { id => "mutate_rename_fluentbit_miscbeat_winstat"
rename => { "[miscbeat][winstat]" => "[winstat]" } }
# generate unique ID
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_fluentbit_winstat"
source => [ "[host][name]",
"[event][module]",
"[winstat][cpu_kernel]",
"[winstat][cpu_user]",
"[winstat][kernel_paged]",
"[winstat][kernel_nonpaged]",
"[winstat][physical_used]",
"[winstat][physical_available]",
"[winstat][processes]",
"[winstat][uptime_msec]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} # [miscbeat][winstat]
} else if ([agent][type] == "winlogbeat") and ([winlog]) {
#-------------------------------------------------
# Winlogbeat - https://www.elastic.co/guide/en/beats/winlogbeat/current/_winlogbeat_overview.html
# Normalize to match evtx upload and fluentbit windows event logs
ruby {
id => "ruby_winlogbeat_remove_empty_values"
path => "/usr/share/logstash/malcolm-ruby/compact_event.rb"
script_params => {
"discard_zeroes" => "true"
}
}
mutate { id => "mutate_replace_winlogbeat_event_module"
replace => { "[event][module]" => "winlog" } }
mutate { id => "mutate_add_field_os_family_winlogbeat"
add_field => { "[os][family]" => "windows" } }
mutate { id => "mutate_add_field_os_type_winlogbeat"
add_field => { "[os][type]" => "windows" } }
if ([log][level]) {
translate {
id => "translate_winlogbeat_log_levelcase"
source => "[log][level]"
target => "[log][level]"
dictionary => {
"error" => "Error"
"failureaudit" => "FailureAudit"
"information" => "Information"
"successaudit" => "SuccessAudit"
"warning" => "Warning"
}
}
mutate { id => "mutate_merge_winlogbeat_log_level_to_result"
merge => { "[event][result]" => "[log][level]" } }
if (![winlog][level]) {
translate {
id => "translate_winlogbeat_to_level"
source => "[log][level]"
target => "[winlog][level]"
dictionary_path => "/etc/winlog_levels_to_numbers.yaml"
}
}
}
if ([winlog][time_created]) {
date { id => "date_winlogbeat_time_created"
match => [ "[winlog][time_created]", "yyyy-MM-dd HH:mm:ss Z" ]
target => "[winlog][time_created]" }
}
# generate unique ID
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_winlogbeat"
source => [ "[winlog][computer_name]",
"[agent][type]",
"[winlog][channel]",
"[winlog][provider_name]",
"[winlog][event_id]",
"[winlog][record_id]",
"[event][original]",
"[winlog][time_created]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} else if ([agent][type] == "filebeat") and ([log][syslog]) {
#-------------------------------------------------
# syslog direct to Malcolm - https://www.elastic.co/guide/en/beats/filebeat/current/syslog.html
mutate { id => "mutate_replace_syslog_direct_event_module"
replace => { "[event][module]" => "syslog" } }
# store the originating host name as host.name as it's probably what people will want to search by
if ([log][syslog][hostname]) { mutate { id => "mutate_syslog_direct_replace_hostname"
replace => { "[host][name]" => "%{[log][syslog][hostname]}" }
remove_field => [ "[hostname]" ] } }
if (![event][hash]) {
fingerprint {
id => "fingerprint_malcolm_miscbeat_syslog_direct"
source => [ "[host][name]",
"[event][module]",
"[log][syslog][severity][code]",
"[log][syslog][facility][code]",
"[log][syslog][appname]",
"[event][original]",
"[@timestamp]" ]
concatenate_sources => true
# uses event.hash
ecs_compatibility => "v8"
method => "MURMUR3_128"
base64encode => true
}
}
} else if ("_zeekdiagnostic" in [tags]) {
#-------------------------------------------------
# Zeek diagnostic logs
# https://docs.zeek.org/en/master/script-reference/log-files.html#zeek-diagnostics
if ([zeek][stats]) {
# remove zero values from zeek stats
ruby {
id => "ruby_zeek_remove_zero_stats"
path => "/usr/share/logstash/malcolm-ruby/compact_event_hash.rb"
script_params => {
"field" => "[zeek][stats]"
"discard_zeroes" => "true"
}
}
}
mutate { id => "mutate_add_field_event_module_zeek_diagnostic"
add_field => { "[event][module]" => "zeek" } }
mutate { id => "mutate_remove_fields_zeek_diagnostic"
remove_field => [ "[event][original]",
"[firstPacket]",
"[lastPacket]",
"[timestamp]",
"[zeek][ts]",
"[length]",
"[event][duration]" ] }
} else if ("_suricatastats" in [tags]) {
#-------------------------------------------------
# Suricata statistics
# https://docs.suricata.io/en/suricata-6.0.2/configuration/suricata-yaml.html#stats
# sum packet drops into suricata.stats.pkts_dropped
ruby {
id => "ruby_miscbeat_suricata_stats_pkts_dropped"
code => "
pkts_dropped = event.get('[suricata][stats][capture][kernel_drops]').to_i +
event.get('[suricata][stats][tcp][segment_memcap_drop]').to_i +
event.get('[suricata][stats][tcp][ssn_memcap_drop]').to_i
event.set('[suricata][stats][pkts_dropped]', pkts_dropped) unless (pkts_dropped == 0)
"
}
if ([suricata][stats]) {
# remove zero values from suricata stats
ruby {
id => "ruby_suricata_remove_zero_stats"
path => "/usr/share/logstash/malcolm-ruby/compact_event_hash.rb"
script_params => {
"field" => "[suricata][stats]"
"discard_zeroes" => "true"
}
}
}
mutate { id => "mutate_add_field_event_module_suricata_stats"