Configure third-party response actions

Enable API access in CrowdStrike. Create an API client in CrowdStrike to allow access to the system. Refer to CrowdStrike’s docs for instructions.

• Give the API client the minimum privilege required to read CrowdStrike data and perform actions on enrolled hosts. Consider creating separate API clients for reading data and performing actions, to limit privileges allowed by each API client.

  • To isolate and release hosts: Read access for Alerts, and Read and Write access for Hosts.

  • To run a script on a host: Read and Write access for Real time response; for elevated access, Write access for Real time response (admin) is also required.

• Take note of the client ID, client secret, and base URL; you’ll need them in later steps when you configure Elastic Security components to access CrowdStrike.

• The base URL varies depending on your CrowdStrike account type:

  • US-1: https://api.crowdstrike.com
  • US-2: https://api.us-2.crowdstrike.com
  • EU-1: https://api.eu-1.crowdstrike.com
  • US-GOV-1: https://api.laggar.gcw.crowdstrike.com

Install the CrowdStrike integration and Elastic Agent. Elastic’s CrowdStrike integration collects and ingests logs into Elastic Security.

1. Find Integrations in the navigation menu or use the global search field, search for and select CrowdStrike, then select Add CrowdStrike.

2. Configure the integration with an Integration name and optional Description.

3. Select Collect CrowdStrike logs via API, and enter the required Settings:

   • Client ID: Client ID for the API client used to read CrowdStrike data.
   • Client Secret: Client secret allowing you access to CrowdStrike.
   • URL: The base URL of the CrowdStrike API.

4. Select the Falcon Alerts and Hosts sub-options under Collect CrowdStrike logs via API.

5. Scroll down and enter a name for the agent policy in New agent policy name. If other agent policies already exist, you can click the Existing hosts tab and select an existing policy instead. For more details on Elastic Agent configuration settings, refer to Elastic Agent policies.

6. Click Save and continue.

7. Select Add Elastic Agent to your hosts and continue with the Elastic Agent installation steps to install Elastic Agent on a resource in your network (such as a server or VM). Elastic Agent will act as a bridge collecting data from CrowdStrike and sending it back to Elastic Security.

Create a CrowdStrike connector. Elastic’s CrowdStrike connector enables Elastic Security to perform actions on CrowdStrike-enrolled hosts.

1. Find Connectors in the navigation menu or use the global search field, then select Create connector.

2. Select the CrowdStrike connector.

3. Enter the configuration information:

   • Connector name: A name to identify the connector.
   • CrowdStrike API URL: The base URL of the CrowdStrike API.
   • CrowdStrike Client ID: Client ID for the API client used to perform actions in CrowdStrike.
   • Client Secret: Client secret allowing you access to CrowdStrike.

4. Click Save.

Create and enable detection rules to generate Elastic Security alerts. (Optional) Create detection rules to generate Elastic Security alerts based on CrowdStrike events and data. The CrowdStrike integration docs list the available ingested logs and fields you can use to build a rule query.

This gives you visibility into CrowdStrike without needing to leave Elastic Security. You can perform supported endpoint response actions directly from alerts that a rule creates, by using the Take action menu in the alert details flyout.

Create API access information in Microsoft Azure. Create new applications in your Azure domain and grant them the following minimum API permissions:

• To isolate and release hosts:

  • Microsoft Defender for Endpoint Fleet integration policy: Permission to read alert data (Windows Defender ATP: Alert.Read.All).
  • Microsoft Defender for Endpoint connector: Permission to read machine information as well as isolate and release a machine (Windows Defender ATP: Machine.Read.All and Machine.Isolate).

• To run a script on a host:

  • Microsoft Defender for Endpoint connector: Permission to manage live response library files as well as run live response on a specific machine (Windows Defender ATP: Library.Manage and Machine.LiveResponse)

• To cancel an ongoing action on a host, you need the same permissions that are required for the action you're canceling.

Refer to the Microsoft Defender for Endpoint integration documentation or Microsoft’s documentation for details on creating a new Azure application.

After you create the applications, take note of the client ID, client secret, and tenant ID for each one; you’ll need them in later steps when you configure Elastic Security components to access Microsoft Defender for Endpoint.

Install the Microsoft Defender for Endpoint integration and Elastic Agent. Elastic’s Microsoft Defender for Endpoint integration collects and ingests logs into Elastic Security.

1. Find Integrations in the navigation menu or use the global search field, search for and select Microsoft Defender for Endpoint, then select Add Microsoft Defender for Endpoint.
2. Enter an Integration name. Entering a Description is optional.
3. Ensure that Microsoft Defender for Endpoint logs is selected, and enter the required values for Client ID, Client Secret, and Tenant ID.
4. Scroll down and enter a name for the agent policy in New agent policy name. If other agent policies already exist, you can click the Existing hosts tab and select an existing policy instead. For more details on Elastic Agent configuration settings, refer to Elastic Agent policies.
5. Click Save and continue.
6. Select Add Elastic Agent to your hosts and continue with the Elastic Agent installation steps to install Elastic Agent on a resource in your network (such as a server or VM). Elastic Agent will act as a bridge, collecting data from Microsoft Defender for Endpoint and sending it back to Elastic Security.

Create a Microsoft Defender for Endpoint connector. Elastic’s Microsoft Defender for Endpoint connector enables Elastic Security to perform actions on Microsoft Defender–enrolled hosts.

1. Find Connectors in the navigation menu or use the global search field, then select Create connector.

2. Select the Microsoft Defender for Endpoint connector.

3. Enter the configuration information:

   • Connector name: A name to identify the connector.
   • Application client ID: The client ID created in step 1.
   • Tenant ID: The tenant ID created in step 1.
   • Client secret value: The client secret created in step 1.

4. (Optional) If necessary, adjust the default values populated for the other configuration parameters.

5. Click Save.

Create and enable detection rules to generate Elastic Security alerts. Create detection rules to generate Elastic Security alerts based on Microsoft Defender for Endpoint events and data.

This gives you visibility into Microsoft Defender hosts without needing to leave Elastic Security. You can perform supported endpoint response actions directly from alerts that a rule creates, by using the Take action menu in the alert details flyout.

When creating a rule, you can target any event containing a Microsoft Defender machine ID field. Use one or more of these index patterns:

• logs-microsoft_defender_endpoint.log-*
• logs-m365_defender.alert-*
• logs-m365_defender.incident-*
• logs-m365_defender.log-*
• logs-m365_defender.event-*

Generate API access tokens in SentinelOne. You’ll need these tokens in later steps, and they allow Elastic Security to collect data and perform actions in SentinelOne.

Create two API tokens in SentinelOne, and give them the minimum privilege required by the Elastic components that will use them:

• SentinelOne integration: Permission to read SentinelOne data.
• SentinelOne connector: Permission to read SentinelOne data and perform actions on enrolled hosts (for example, isolating and releasing an endpoint).

Refer to the SentinelOne integration docs or SentinelOne’s docs for details on generating API tokens.

Install the SentinelOne integration and Elastic Agent. Elastic’s SentinelOne integration collects and ingests logs into Elastic Security.

1. Find Integrations in the navigation menu or use the global search field, search for and select SentinelOne, then select Add SentinelOne.

2. Configure the integration with an Integration name and optional Description.

3. Ensure that Collect SentinelOne logs via API is selected, and enter the required Settings:

   • URL: The SentinelOne console URL.
   • API Token: The SentinelOne API access token you generated previously, with permission to read SentinelOne data.

4. Scroll down and enter a name for the agent policy in New agent policy name. If other agent policies already exist, you can click the Existing hosts tab and select an existing policy instead. For more details on Elastic Agent configuration settings, refer to Elastic Agent policies.

5. Click Save and continue.

6. Select Add Elastic Agent to your hosts and continue with the Elastic Agent installation steps to install Elastic Agent on a resource in your network (such as a server or VM). Elastic Agent will act as a bridge collecting data from SentinelOne and sending it to Elastic Security.

Create a SentinelOne connector. Elastic’s SentinelOne connector enables Elastic Security to perform actions on SentinelOne-enrolled hosts.

1. Find Connectors in the navigation menu or use the global search field, then select Create connector.

2. Select the SentinelOne connector.

3. Enter the configuration information:

   • Connector name: A name to identify the connector.
   • SentinelOne tenant URL: The SentinelOne tenant URL.
   • API token: The SentinelOne API access token you generated previously, with permission to read SentinelOne data and perform actions on enrolled hosts.

4. Click Save.

Create and enable detection rules to generate Elastic Security alerts. Create detection rules to generate Elastic Security alerts based on SentinelOne events and data.

This gives you visibility into SentinelOne without needing to leave Elastic Security. You can perform supported endpoint response actions directly from alerts that a rule creates, by using the Take action menu in the alert details flyout.

When creating a rule, you can target any event containing a SentinelOne agent ID field. Use one or more of these index patterns: