ソリューション：弾性SIEM - 家庭およびビジネスセキュリティ（C）

シリーズの続編- 「家庭とビジネスセキュリティのための弾性SIEM」この記事では、前回の記事です。AuditbeatとPacketbeat：今日の記事では、我々はその後の物語を伝えるために、データをインポートします。「私たちのシステムの構成の前に、記事を参照してください： -家庭およびビジネスセキュリティ（b）のために弾性SIEMソリューション。」今日のインストールでは、我々は、UbuntuのOSの上に私たちのAuditbeatとPacketbeatをインストールします。

 

インストールPacketbeat

私たちは、記事を参照することができ、「ビート：Packetbeatのインストール方法」のUbuntu OSにインストールするPacketbeatを。需要の一貫性によると、前回の記事によると「ソリューション：弾性SIEM -家庭およびビジネスセキュリティ（b）のために」、私たちはpacketbeat.ymlファイルに適切なプロセッサを追加する必要があります。

processors: 
  - add_host_metadata:
      netinfo.enabled: true
      geo: # These Geo configurations are optional
        location: 39.931854, 116.470528
        continent_name: Asia
        country_iso_code: CN
        region_name: Beijing
        region_iso_code: CN-BJ
        city_name: Beijing city
        name: myLocation
  - add_locale: ~ 
  - add_cloud_metadata: ~ 
  - add_fields: 
      when.network.source.ip: private 
      fields: 
        source.geo.location: 
          lat: 39.931854 
          lon: 116.470528
        source.geo.continent_name: Asia
        source.geo.country_iso_code: CN
        source.geo.region_name: Beijing
        source.geo.region_iso_code: CN-BJ
        source.geo.city_name: Beijing city
        source.geo.name: myLocation
      target: '' 
  - add_fields: 
      when.network.destination.ip: private 
      fields: 
        destination.geo.location: 
          lat: 39.931854 
          lon: 116.470528 
        destination.geo.continent_name: Asia
        destination.geo.country_iso_code: CN
        destination.geo.region_name: Beijing
        destination.geo.region_iso_code: CN-BJ
        destination.geo.city_name: Beijing city
        destination.geo.name: myLocation
      target: ''

私はまたに名前欄にpacketbeat.ymlを入れUbuntuの。次のように全体packetbeat.ymlファイルは、だから：

#################### Packetbeat Configuration Example #########################

# This file is an example configuration file highlighting only the most common
# options. The packetbeat.reference.yml file from the same directory contains all the
# supported options with more comments. You can use it as a reference.
#
# You can find the full configuration reference here:
# https://www.elastic.co/guide/en/beats/packetbeat/index.html

#============================== Network device ================================

# Select the network interface to sniff the data. On Linux, you can use the
# "any" keyword to sniff on all connected interfaces.
packetbeat.interfaces.device: any

#================================== Flows =====================================

# Set `enabled: false` or comment out all options to disable flows reporting.
packetbeat.flows:
  # Set network flow timeout. Flow is killed if no packet is received before being
  # timed out.
  timeout: 30s

  # Configure reporting period. If set to -1, only killed flows will be reported
  period: 10s

#========================== Transaction protocols =============================

packetbeat.protocols:
- type: icmp
  # Enable ICMPv4 and ICMPv6 monitoring. Default: false
  enabled: true

- type: amqp
  # Configure the ports where to listen for AMQP traffic. You can disable
  # the AMQP protocol by commenting out the list of ports.
  ports: [5672]

- type: cassandra
  #Cassandra port for traffic monitoring.
  ports: [9042]

- type: dhcpv4
  # Configure the DHCP for IPv4 ports.
  ports: [67, 68]

- type: dns
  # Configure the ports where to listen for DNS traffic. You can disable
  # the DNS protocol by commenting out the list of ports.
  ports: [53]

- type: http
  # Configure the ports where to listen for HTTP traffic. You can disable
  # the HTTP protocol by commenting out the list of ports.
  ports: [80, 8080, 8000, 5000, 8002]

- type: memcache
  # Configure the ports where to listen for memcache traffic. You can disable
  # the Memcache protocol by commenting out the list of ports.
  ports: [11211]

- type: mysql
  # Configure the ports where to listen for MySQL traffic. You can disable
  # the MySQL protocol by commenting out the list of ports.
  ports: [3306,3307]

- type: pgsql
  # Configure the ports where to listen for Pgsql traffic. You can disable
  # the Pgsql protocol by commenting out the list of ports.
  ports: [5432]

- type: redis
  # Configure the ports where to listen for Redis traffic. You can disable
  # the Redis protocol by commenting out the list of ports.
  ports: [6379]

- type: thrift
  # Configure the ports where to listen for Thrift-RPC traffic. You can disable
  # the Thrift-RPC protocol by commenting out the list of ports.
  ports: [9090]

- type: mongodb
  # Configure the ports where to listen for MongoDB traffic. You can disable
  # the MongoDB protocol by commenting out the list of ports.
  ports: [27017]

- type: nfs
  # Configure the ports where to listen for NFS traffic. You can disable
  # the NFS protocol by commenting out the list of ports.
  ports: [2049]

- type: tls
  # Configure the ports where to listen for TLS traffic. You can disable
  # the TLS protocol by commenting out the list of ports.
  ports:
    - 443   # HTTPS
    - 993   # IMAPS
    - 995   # POP3S
    - 5223  # XMPP over SSL

    - 8443
    - 8883  # Secure MQTT
    - 9243  # Elasticsearch

#==================== Elasticsearch template setting ==========================

setup.template.settings:
  index.number_of_shards: 1
  #index.codec: best_compression
  #_source.enabled: false

#================================ General =====================================

# The name of the shipper that publishes the network data. It can be used to group
# all the transactions sent by a single shipper in the web interface.
name: "ubuntu"

# The tags of the shipper are included in their own field with each
# transaction published.
tags: ["ubuntu", "HomePC"]

# Optional fields that you can specify to add additional information to the
# output.
#fields:
#  env: staging


#============================== Dashboards =====================================
# These settings control loading the sample dashboards to the Kibana index. Loading
# the dashboards is disabled by default and can be enabled either by setting the
# options here or by using the `setup` command.
#setup.dashboards.enabled: false

# The URL from where to download the dashboards archive. By default this URL
# has a value which is computed based on the Beat name and version. For released
# versions, this URL points to the dashboard archive on the artifacts.elastic.co
# website.
#setup.dashboards.url:

#============================== Kibana =====================================

# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.
# This requires a Kibana endpoint configuration.
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: "192.168.43.220:5601"

  # Kibana Space ID
  # ID of the Kibana Space into which the dashboards should be loaded. By default,
  # the Default Space will be used.
  #space.id:

#============================= Elastic Cloud ==================================

# These settings simplify using Packetbeat with the Elastic Cloud (https://cloud.elastic.co/).

# The cloud.id setting overwrites the `output.elasticsearch.hosts` and
# `setup.kibana.host` options.
# You can find the `cloud.id` in the Elastic Cloud web UI.
#cloud.id:

# The cloud.auth setting overwrites the `output.elasticsearch.username` and
# `output.elasticsearch.password` settings. The format is `<user>:<pass>`.
#cloud.auth:

#================================ Outputs =====================================

# Configure what output to use when sending the data collected by the beat.

#-------------------------- Elasticsearch output ------------------------------
output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["192.168.43.220:9200"]

  # Protocol - either `http` (default) or `https`.
  #protocol: "https"

  # Authentication credentials - either API key or username/password.
  #api_key: "id:api_key"
  #username: "elastic"
  #password: "changeme"

#----------------------------- Logstash output --------------------------------
#output.logstash:
  # The Logstash hosts
  #hosts: ["localhost:5044"]

  # Optional SSL. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

#================================ Processors =====================================

# Configure processors to enhance or manipulate events generated by the beat.

processors: 
  - add_host_metadata:
      netinfo.enabled: true
      geo: # These Geo configurations are optional
        location: 39.931854, 116.470528
        continent_name: Asia
        country_iso_code: CN
        region_name: Beijing
        region_iso_code: CN-BJ
        city_name: Beijing city
        name: myLocation
  - add_locale: ~ 
  - add_cloud_metadata: ~ 
  - add_fields: 
      when.network.source.ip: private 
      fields: 
        source.geo.location: 
          lat: 39.931854 
          lon: 116.470528
        source.geo.continent_name: Asia
        source.geo.country_iso_code: CN
        source.geo.region_name: Beijing
        source.geo.region_iso_code: CN-BJ
        source.geo.city_name: Beijing city
        source.geo.name: myLocation
      target: '' 
  - add_fields: 
      when.network.destination.ip: private 
      fields: 
        destination.geo.location: 
          lat: 39.931854 
          lon: 116.470528 
        destination.geo.continent_name: Asia
        destination.geo.country_iso_code: CN
        destination.geo.region_name: Beijing
        destination.geo.region_iso_code: CN-BJ
        destination.geo.city_name: Beijing city
        destination.geo.name: myLocation
      target: ''

#================================ Logging =====================================

# Sets log level. The default log level is info.
# Available log levels are: error, warning, info, debug
#logging.level: debug

# At debug level, you can selectively enable logging only for some components.
# To enable all selectors use ["*"]. Examples of other selectors are "beat",
# "publish", "service".
#logging.selectors: ["*"]

#============================== X-Pack Monitoring ===============================
# packetbeat can export internal metrics to a central Elasticsearch monitoring
# cluster.  This requires xpack monitoring to be enabled in Elasticsearch.  The
# reporting is disabled by default.

# Set to true to enable the monitoring reporter.
monitoring.enabled: true

# Sets the UUID of the Elasticsearch cluster under which monitoring data for this
# Packetbeat instance will appear in the Stack Monitoring UI. If output.elasticsearch
# is enabled, the UUID is derived from the Elasticsearch cluster referenced by output.elasticsearch.
#monitoring.cluster_uuid:

# Uncomment to send the metrics to Elasticsearch. Most settings from the
# Elasticsearch output are accepted here as well.
# Note that the settings should point to your Elasticsearch *monitoring* cluster.
# Any setting that is not set is automatically inherited from the Elasticsearch
# output configuration, so if you have the Elasticsearch output configured such
# that it is pointing to your Elasticsearch monitoring cluster, you can simply
# uncomment the following line.
#monitoring.elasticsearch:

#================================= Migration ==================================

# This allows to enable 6.7 migration aliases
#migration.6_to_7.enabled: true

私たちのPacketbeatが正しくインストールされている場合、私は、次の絵ダッシュボードKibana中を見ることができます：

インストールAuditbeat

私たちが記事を参照することができます前に、「ビート：Auditbeatの導入の弾性の使用は」UbuntuのOSにインストールします。Auditbeatのインストールについては、我々は少し小さな変更を行う必要があります。/etc/auditbeat/audit.rules.dディレクトリで我々は、デフォルトのルールはサンプルを開くには：

sudo mv sample-rules.conf.disabled rules.conf

規則は次のとおりとします。

## 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

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

## Unauthorized access attempts.
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EACCES -k access
-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EPERM -k access

需要の一貫性によると、前回の記事によると「： -ソリューション弾性SIEM家庭およびビジネスセキュリティ（b）のために：auditbeat改変された」、私たちはauditbeat.ymlファイルに適切なプロセッサを追加する必要があります。 YMLファイル：

###################### Auditbeat Configuration Example #########################

# This is an example configuration file highlighting only the most common
# options. The auditbeat.reference.yml file from the same directory contains all
# the supported options with more comments. You can use it as a reference.
#
# You can find the full configuration reference here:
# https://www.elastic.co/guide/en/beats/auditbeat/index.html

#==========================  Modules configuration =============================
auditbeat.modules:

- module: auditd
  # Load audit rules from separate files. Same format as audit.rules(7).
  audit_rule_files: [ '${path.config}/audit.rules.d/*.conf' ]
  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

    ## Unauthorized access attempts.
    #-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EACCES -k access
    #-a always,exit -F arch=b64 -S open,creat,truncate,ftruncate,openat,open_by_handle_at -F exit=-EPERM -k access

- module: file_integrity
  paths:
  - /bin
  - /usr/bin
  - /sbin
  - /usr/sbin
  - /etc

- module: system
  datasets:
    - host    # General host information, e.g. uptime, IPs
    - login   # User logins, logouts, and system boots.
    - package # Installed, updated, and removed packages
    - process # Started and stopped processes
    - socket  # Opened and closed sockets
    - user    # User information

  # How often datasets send state updates with the
  # current state of the system (e.g. all currently
  # running processes, all open sockets).
  state.period: 12h

  # Enabled by default. Auditbeat will read password fields in
  # /etc/passwd and /etc/shadow and store a hash locally to
  # detect any changes.
  user.detect_password_changes: true

  # File patterns of the login record files.
  login.wtmp_file_pattern: /var/log/wtmp*
  login.btmp_file_pattern: /var/log/btmp*

#==================== Elasticsearch template setting ==========================
setup.template.settings:
  index.number_of_shards: 1
  #index.codec: best_compression
  #_source.enabled: false

#================================ General =====================================

# The name of the shipper that publishes the network data. It can be used to group
# all the transactions sent by a single shipper in the web interface.
name: ubuntu

# The tags of the shipper are included in their own field with each
# transaction published.
tags: ["ubuntu", "HomePC"] 

# Optional fields that you can specify to add additional information to the
# output.
#fields:
#  env: staging


#============================== Dashboards =====================================
# These settings control loading the sample dashboards to the Kibana index. Loading
# the dashboards is disabled by default and can be enabled either by setting the
# options here or by using the `setup` command.
#setup.dashboards.enabled: false

# The URL from where to download the dashboards archive. By default this URL
# has a value which is computed based on the Beat name and version. For released
# versions, this URL points to the dashboard archive on the artifacts.elastic.co
# website.
#setup.dashboards.url:

#============================== Kibana =====================================

# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.
# This requires a Kibana endpoint configuration.
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: "192.168.43.220:5601"

  # Kibana Space ID
  # ID of the Kibana Space into which the dashboards should be loaded. By default,
  # the Default Space will be used.
  #space.id:

#============================= Elastic Cloud ==================================

# These settings simplify using Auditbeat with the Elastic Cloud (https://cloud.elastic.co/).

# The cloud.id setting overwrites the `output.elasticsearch.hosts` and
# `setup.kibana.host` options.
# You can find the `cloud.id` in the Elastic Cloud web UI.
#cloud.id:

# The cloud.auth setting overwrites the `output.elasticsearch.username` and
# `output.elasticsearch.password` settings. The format is `<user>:<pass>`.
#cloud.auth:

#================================ Outputs =====================================

# Configure what output to use when sending the data collected by the beat.

#-------------------------- Elasticsearch output ------------------------------
output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["192.168.43.220:9200"]

  # Protocol - either `http` (default) or `https`.
  #protocol: "https"

  # Authentication credentials - either API key or username/password.
  #api_key: "id:api_key"
  #username: "elastic"
  #password: "changeme"

#----------------------------- Logstash output --------------------------------
#output.logstash:
  # The Logstash hosts
  #hosts: ["localhost:5044"]

  # Optional SSL. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

#================================ Processors =====================================

# Configure processors to enhance or manipulate events generated by the beat.

processors: 
  - add_host_metadata:
      netinfo.enabled: true
      geo: # These Geo configurations are optional
        location: 39.931854, 116.470528
        continent_name: Asia
        country_iso_code: CN
        region_name: Beijing
        region_iso_code: CN-BJ
        city_name: Beijing city
        name: myLocation
  - add_locale: ~ 
  - add_cloud_metadata: ~ 
  - add_fields: 
      when.network.source.ip: private 
      fields: 
        source.geo.location: 
          lat: 39.931854 
          lon: 116.470528
        source.geo.continent_name: Asia
        source.geo.country_iso_code: CN
        source.geo.region_name: Beijing
        source.geo.region_iso_code: CN-BJ
        source.geo.city_name: Beijing city
        source.geo.name: myLocation
      target: '' 
  - add_fields: 
      when.network.destination.ip: private 
      fields: 
        destination.geo.location: 
          lat: 39.931854 
          lon: 116.470528 
        destination.geo.continent_name: Asia
        destination.geo.country_iso_code: CN
        destination.geo.region_name: Beijing
        destination.geo.region_iso_code: CN-BJ
        destination.geo.city_name: Beijing city
        destination.geo.name: myLocation
      target: ''

#================================ Logging =====================================

# Sets log level. The default log level is info.
# Available log levels are: error, warning, info, debug
#logging.level: debug

# At debug level, you can selectively enable logging only for some components.
# To enable all selectors use ["*"]. Examples of other selectors are "beat",
# "publish", "service".
#logging.selectors: ["*"]

#============================== X-Pack Monitoring ===============================
# auditbeat can export internal metrics to a central Elasticsearch monitoring
# cluster.  This requires xpack monitoring to be enabled in Elasticsearch.  The
# reporting is disabled by default.

# Set to true to enable the monitoring reporter.
monitoring.enabled: true

# Sets the UUID of the Elasticsearch cluster under which monitoring data for this
# Auditbeat instance will appear in the Stack Monitoring UI. If output.elasticsearch
# is enabled, the UUID is derived from the Elasticsearch cluster referenced by output.elasticsearch.
#monitoring.cluster_uuid:

# Uncomment to send the metrics to Elasticsearch. Most settings from the
# Elasticsearch output are accepted here as well.
# Note that the settings should point to your Elasticsearch *monitoring* cluster.
# Any setting that is not set is automatically inherited from the Elasticsearch
# output configuration, so if you have the Elasticsearch output configured such
# that it is pointing to your Elasticsearch monitoring cluster, you can simply
# uncomment the following line.
#monitoring.elasticsearch:

#================================= Migration ==================================

# This allows to enable 6.7 migration aliases
#migration.6_to_7.enabled: true

私たちのauditbeatが正常に稼働していたら、私たちは次のように絵ダッシュボードKibanaを見ることができます：

マウントビートのような他のFilebeat

多くの場合、我々はまた、このようなfilebeatなど、私たち自身のニーズに応じて追加的なビートをインストールする必要があります。これは、多くの場合、非常に便利です。私たちは、Kibanaを開くことができます。

私たちはをクリックして追加イベントのボタン：

上記では、シナリオの数を示します。私たちは、彼らのニーズに応じて上記の要件に合わせてインストールすることができます。ほとんどの場合、filebeatをインストールして、適切なモジュールを開始しています。

 

SIEMの表示データ

私は中KibanaでSIEMアプリケーションをオープンしました：

Auditbeat、WinlogbeatとPacketbeat：私は、同時に3つのデータソースを見ることができます。

私たちは、ホスト]タブをクリックしてください：

私たちは、3つのホストを見ました。この理由は、私は、デフォルト値からのubuntuにliuxgのコンフィギュレーションファイルYMLにファイル名を変更方法です。

 

ハイパーリンクUbuntuの上で私たちをクリックして、我々は以下の画像を見ることができます：

上記では、我々はこのUbuntuのホストの統計を見ることができます。これは我々が検索し、次の認証]、アンコモンプロセス、イベントおよび外部警告することができます：

私たちはPacketbeatとAuditbeatを追加しましたので、我々は事態のネットワークを取得することができます：

上記番組をコンピュータ上の私たちの場所で。また、それはイベントネットワークのすべてを示しています。

上記では、我々は「をクリックすると[Detections」、我々は次のエラーを見つけます：

私たちは、あなたが私達の構成のための一定の要件があります見ることができ、上記のリンクをクリックしてください：

私たちは、上記の要件を再構成しに従ってする必要があります。

• すなわち、elasticsearch.ymlでは、我々はxpack.security.enabled追加し、これをtrueに設定します。
  • xpack.security.enabled：真
  • 基本認証の場合、我々はまた、そうでない場合は起動できませんもelasticsearch、trueにxpack.security.transport.ssl.enabled設定する必要があります。
  • 我々はElasticsearchのセキュリティを開始しているので、私たちは、「インストールする必要があります：弾性アカウントのセキュリティ設定Elasticsearchをアカウントのセキュリティを設定します」。
  • 同時に、我々はまた、セキュアなアクセスを可能にするように設定する必要がありkibana.yml
  • 同時に、我々はまた、私たちの様々なビートにアクセスするためにElasticsearchのユーザー名とパスワードを設定し、その後、ビートを再起動する必要があります

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["192.168.43.220:9200"]

  # Protocol - either `http` (default) or `https`.
  #protocol: "https"

  # Authentication credentials - either API key or username/password.
  #api_key: "id:api_key"
  username: "elastic"
  password: "changeme"

• 在kibana.yml中，设置xpack.encryptedSavedObjects.encryptionKey: 'fhjskloppd678ehkdfdlliverpoolfcr'

上記の変更の後、私たちは「オンクリック再検出を」、私たちは以下の画像を見ることができます：

さて、今日はここに停止する必要があります。次の記事では、我々は、SIEMデータを検索する方法を説明します。みんなの注目をしてください。