Elastic Stack 8 : Install Auditbeat2024/08/02

	Install Auditbeat that can monitor Audit actions.
[1]	Install Auditbeat. Configure Elasticsearch repository before it.

root@dlp:~#

apt -y install auditbeat

[2]	Configure basic settings and start Auditbeat.

root@dlp:~#

vi /etc/auditbeat/auditbeat.yml

# line 13 : set Audit action (writing rules is the same with auditctl)

- module: auditd
  audit_rules: |
    ## Define audit rules here.
    ## Create file watches (-w) or syscall audits (-a or -A). Uncomment these
    ## examples or add your own rules.

    ## If you are on a 64 bit platform, everything should be running
    ## in 64 bit mode. This rule will detect any use of the 32 bit syscalls
    ## because this might be a sign of someone exploiting a hole in the 32
    ## bit API.
    #-a always,exit -F arch=b32 -S all -F key=32bit-abi

    ## Executions.
    #-a always,exit -F arch=b64 -S execve,execveat -k exec

    ## External access (warning: these can be expensive to audit).
    #-a always,exit -F arch=b64 -S accept,bind,connect -F key=external-access

    ## Identity changes.
    #-w /etc/group -p wa -k identity
    #-w /etc/passwd -p wa -k identity
    #-w /etc/gshadow -p wa -k identity

.....
.....

# line 122 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, hostname should be the same with the hostname in certs
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]

setup.kibana:
.....
  host: "https://dlp.srv.world:5601"
  protocol: "https"
  username: "elastic"
  password: "password"
  ssl.enabled: true
  ssl.verification_mode: none

# line 154 : specify output of Elasticsearch
# [username] and [password] is the admin user's one
# [ssl.certificate_authorities] is the cacert generated by Elasticsearch installation

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["https://dlp.srv.world:9200"]

  protocol: "https"
  #api_key: "id:api_key"
  username: "elastic"
  password: "password"
  ssl.certificate_authorities: "/etc/elasticsearch/certs/http_ca.crt"

.....
.....

root@dlp:~#

vi /etc/auditbeat/auditbeat.reference.yml

# line 34 : basic settings for auditd module

- module: auditd
  resolve_ids: true
  failure_mode: silent
  backlog_limit: 8196
  rate_limit: 0
  include_raw_message: false
  include_warnings: false
  audit_rules: |

.....
.....

# line 1460 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, uncomment ssl related lines
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]
setup.kibana:

  # Kibana Host
  # Scheme and port can be left out and will be set to the default (http and 5601)
  # In case you specify and additional path, the scheme is required: http://localhost:5601/path
  # IPv6 addresses should always be defined as: https://[2001:db8::1]:5601
  host: "https://dlp.srv.world:5601"

  # Optional protocol and basic auth credentials.
  protocol: "https"
  username: "elastic"
  password: "password"

  # Optional HTTP Path
  #path: ""

  # Use SSL settings for HTTPS. Default is true.
  ssl.enabled: true

.....
.....

  # after very careful consideration. It is primarily intended as a temporary
  # diagnostic mechanism when attempting to resolve TLS errors; its use in
  # production environments is strongly discouraged.
  # The default value is full.
  ssl.verification_mode: none

root@dlp:~#

systemctl enable --now auditbeat

[3]	Verify status the data has been collected normally.

# index list

root@dlp:~#

curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/_cat/indices?v

health status index                                                              uuid                   pri rep docs.count docs.deleted store.size pri.store.size dataset.size
green  open   .internal.alerts-transform.health.alerts-default-000001            3MDAnVqWRkC_ucXp_f-dRg   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.logs.alerts-default-000001          virq6rX_TAadxqKMrIr4tQ   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.uptime.alerts-default-000001        46XZFk5FRl28WLwbzBCRCw   1   0          0            0       249b           249b         249b
yellow open   .ds-auditbeat-8.14.3-2024.08.02-000001                             knoq-r-XRm26hKdcV62PRA   1   1       2624            0      1.3mb          1.3mb        1.3mb
green  open   .internal.alerts-ml.anomaly-detection.alerts-default-000001        03VHbmGgSIOuhotRgmO1Yw   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.slo.alerts-default-000001           IaTLW9hYRIm8y1ikEzlN2g   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-default.alerts-default-000001                     XpCXm0SYQa2o_uT14iMPyw   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.apm.alerts-default-000001           0OrsLwbDRVWozBNNt1RAOA   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.metrics.alerts-default-000001       yQqehuwnTN-ndP0O-YoqYg   1   0          0            0       249b           249b         249b
green  open   .kibana-observability-ai-assistant-conversations-000001            ctEkgFQkTc-2Fec_91qYJA   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-ml.anomaly-detection-health.alerts-default-000001 34FcMwC0S26Gw6PQlsAgHA   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-observability.threshold.alerts-default-000001     b9DylGvaSp6Glf8y8lKITA   1   0          0            0       249b           249b         249b
yellow open   .ds-packetbeat-8.14.3-2024.08.02-000001                            x32rSrQQSu6HYkyypcMQzA   1   1       4708            0      2.7mb          2.7mb        2.7mb
green  open   .kibana-observability-ai-assistant-kb-000001                       bde5sw2OTaO0TX18GPGY8Q   1   0          0            0       249b           249b         249b
green  open   .internal.alerts-security.alerts-default-000001                    09-NNzj9SBK7QC9yzpFreQ   1   0          0            0       249b           249b         249b
yellow open   test_index                                                         KB7PcAnESd6F8Gz4BJz7AA   1   1          1            0      6.5kb          6.5kb        6.5kb
yellow open   .ds-metricbeat-8.14.3-2024.08.02-000001                            3QM_SeQkRZG-Um9Dopq9Iw   1   1       3291            0      6.9mb          6.9mb        6.9mb
green  open   .internal.alerts-stack.alerts-default-000001                       yh_lotA4Q0KsZAx4iIGNig   1   0          0            0       249b           249b         249b

# document list on the index

root@dlp:~#

curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/.ds-auditbeat-8.14.3-2024.08.02-000001/_search?pretty

{
  "took" : 1,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2783,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : ".ds-auditbeat-8.14.3-2024.08.02-000001",
        "_id" : "JrHQEJEBh42v6JiL2BPw",
        "_score" : 1.0,
        "_source" : {
          "@timestamp" : "2024-08-02T01:59:58.160Z",
          "event" : {
            "dataset" : "socket",
            "kind" : "event",
            "type" : [
              "info",
              "connection"
            ],
.....
.....

[4]	If Kibana is running, it's possible to import data to sample Dashboards.

root@dlp:~#

auditbeat setup --dashboards

Loading dashboards (Kibana must be running and reachable)
Loaded dashboards

Matched Content