Deploy this integration to send Unified Audit Logging logs from Microsoft 365 to Logz.io. This method of log forwarding utilizes the Office/Microsoft 365 Management API, which currently supports the following Microsoft 365 content types:

  • Audit.AzureActiveDirectory
  • Audit.Exchange
  • Audit.SharePoint
  • Audit.General (includes all other workloads not included in the previous content types)
  • DLP.All (DLP events only for all workloads)

Before you begin, you’ll need:

  • An active subscription for Microsoft 365 with an appropriately provisioned administrator account.
  • Unified Audit Logging enabled within M365’s Security and Audit Center
  • A machine for hosting filebeat version 7 or greater, preferably a Windows machine.
Register a new application in Azure AD
  1. Navigate to portal.azure.com and sign-in with an administrative account.
  2. Open the pop-out menu from the top left corner of the web page and click on Azure Active Directory.
  3. Under the Manage section on the left-hand side of the page, select App registrations > New registration. New registration
  4. Name your app, and then adjust options as necessary. The default settings should be fine if working with a single M365 tenant without a URI proxy.

Take note of the Application (client) ID and the Directory (tenant) ID. These will be used later when configuring Filebeat.

Create a client secret for your application
  1. From your application overview, navigate to Certificates & secrets. A client secret will be needed for your Filebeat configuration in order to pull data from the management API.
  2. Select + New client secret and provide a description of your choosing.
  3. Take note of the Value of the new client secret.

Client secret

Adjust app permissions to allow for interaction with the management API
  1. Navigate to API Permissions on the left hand side of the page, select + Add a permission and scroll down to find the “Office 365 Management APIs” widget.
  2. From the Application permissions tab, enable the ActivityFeed.Read and ActivityFeed.ReadDlp permissions. App permissions
Download the Logz.io public certificate to your credentials server

For HTTPS shipping, download the Logz.io public certificate to your certificate authority folder.

sudo curl https://raw.githubusercontent.com/logzio/public-certificates/master/AAACertificateServices.crt --create-dirs -o /etc/pki/tls/certs/AAACertificateServices.crt
Configure Filebeat
  1. Navigate to the modules.d directory and open the o365.yml.disabled file.
  2. Paste the following into the file:

    # Module: o365
    # Docs: https://www.elastic.co/guide/en/beats/filebeat/7.x/filebeat-module-o365.html
    
    - module: o365
      audit:
        enabled: true
        # Set the application_id (also known as client ID):
        var.application_id: <"Application ID">
        # Configure the tenants to monitor:
        # Use the tenant ID (also known as directory ID) and the domain name.
        # var.tenants:
        #  - id: "tenant_id_1"
        #    name: "mydomain.onmicrosoft.com"
        #  - id: "tenant_id_2"
        #    name: "mycompany.com"
        var.tenants:
          - id: <"TenantID">
            name: <"TenantName">
        # List of content-types to fetch. By default all known content-types
        # are retrieved:
        # var.content_type:
        #  - "Audit.AzureActiveDirectory"
        #  - "Audit.Exchange"
        #  - "Audit.SharePoint"
        #  - "Audit.General"
        #  - "DLP.All"
        # Use the following settings to enable certificate-based authentication:
        #var.certificate: "C:\ProgramData\filebeat1\COMODORSADomainValidationSecureServerCA.crt"
        # var.key: "/path/to/private_key.pem"
        # var.key_passphrase: "myPrivateKeyPassword"
        # Client-secret based authentication:
        # Comment the following line if using certificate authentication.
        var.client_secret: <"Client Secret">
        # Advanced settings, use with care:
        # var.api:
        #   # Settings for custom endpoints:
        #   authentication_endpoint: "https://login.microsoftonline.us/"
        #   resource: "https://manage.office365.us"
        #
        #   max_retention: 168h
        #   max_requests_per_minute: 2000
        #   poll_interval: 3m
    
  3. Save the file as o365.yml.

  4. Paste the following into the inputs section of the Filebeat configuration file:

    filebeat.config:
      modules:
        enabled: true
        path: modules.d/*.yml
    fields:
      logzio_codec: plain
      token: <<LOG-SHIPPING-TOKEN>>
      type: o365
    fields_under_root: true
    #For version 6.x and lower uncomment the line below and remove the line after it 
    #filebeat.registry_file: 'C:\ProgramData\Filebeat' 
    filebeat.registry.path: 'C:\ProgramData\filebeat'
    #The following processors are to ensure compatibility with version 7
    processors:
    - rename:
        fields:
        - from: "agent"
          to: "beat_agent"
        ignore_missing: true
    - rename:
        fields:
        - from: "log.file.path"
          to: "source"
        ignore_missing: true
    ############################# Output ##########################################
    output:
      logstash:
        hosts: ["<<LISTENER-HOST>>:5015"]
        ssl:
          certificate_authorities: ['C:\ProgramData\filebeat\COMODORSADomainValidationSecureServerCA.crt']
    
    • Your Logz.io log shipping token directs the data securely to your Logz.io Log Management account. The default token is auto-populated in the examples when you’re logged into the Logz.io app as an Admin. Manage your tokens.
    • Use the listener URL specific to the region where your Logz.io account is hosted. Click to look up your listener URL.
  5. Run Filebeat with the new configuration.
Check Logz.io for your logs

Give your logs some time to get from your system to ours, and then open Kibana. You can filter for data of type o365 to see the incoming Microsoft 365 logs.

If you still don’t see your data, see log shipping troubleshooting.