Configuring ESET Responder Connectors

Use an ESET Responder to configure a Webhook action that can be triggered manually or that can enhance Automated Threat Hunting (ATH) actions.

ESET Responders use Webhook templates that support actions. Each action is one responder, there are four actions, and hence there are four ESET Responders: ESET Isolate computer from network, ESET End computer isolation from network, ESET On-Demand Scan, and ESET run command.

This document describes how to configure an ESET Responder using the Universal Webhook Responder, how to manually trigger an action with an ESET Responder, and how to perform ATH actions with an ESET Responder.

Connector Overview: ESET Responder

Capabilities

  • Collect: No

  • Respond: Yes

  • Native Alerts Mapped: No

  • Runs on: DP

  • Interval: N/A

Collected Data

N/A

Domain

<Hostname>

where <Hostname> is a variable from the configuration of this connector

Response Actions

Webhook action templates:

  • ESET End computer isolation from network

  • ESET Isolate computer from network

  • ESET On-Demand Scan

  • ESET Run command

Third Party Native Alert Integration Details

N/A

Required Credentials

  • Hostname, Protocol, Username and Password

Adding an ESET Responder

To add an ESET Responder:

  1. Obtain credentials
  2. Add the connector in Stellar Cyber
  3. Test the connector
  4. Use actions

Obtaining Credentials

Before you configure the connector in Stellar Cyber, you must obtain the following ESET credentials:

  • Hostname: The default is: us.automation.eset.systems.
    For Europe, modify the default to: eu.automation.eset.systems.
    For other regions, such as Japan and Canada, refer to https://help.eset.com/eset_connect/en-US/use_api_with_swagger.html.

  • Protocol: The options are HTTP and HTTPS.

  • Username and Password: To obtain a username and password, create an API user account following the guidance in the ESET documentation for Create API User account.

Adding the Connector in Stellar Cyber

To add an ESET Responder in Stellar Cyber:

  1. Log in to Stellar Cyber.

  2. Click System | Connectors (under Integrations). The Connector Overview appears.

  3. Click Create. The General tab of the Add Connector screen appears. The information on this tab cannot be changed after you add the connector.

    The asterisk (*) indicates a required field.

  4. Choose Webhook from the Category drop-down.

  5. Choose one of the predefined templates from the Type drop-down: ESET End computer isolation from network, ESET Isolate computer from network, ESET On-Demand Scan, or ESET Run command.

  6. For this connector, the supported Function is Respond, which is enabled already.

  7. Enter a Name.

    Notes:
    • This field does not accept multibyte characters.
    • It is recommended that you follow a naming convention such as tenantname-connectortype.

  8. Choose a Tenant Name. This identifies which tenant is allowed to use the connector. In addition to specific tenants, this connector supports All Tenants, which means that an ESET Responder can be used across tenants.

  9. Choose the device on which to run the connector.

    • Certain connectors can be run on either a Sensor or a Data Processor. The available devices are displayed in the Run On menu. If you want to associate your collector with a sensor, you must have configured that sensor prior to configuring the connector or you will not be able to select it during initial configuration. If you select Data Processor, you will need to associate the connector with a Data Analyzer profile as a separate step. That step is not required for a sensor, which is configured with only one possible profile.

    • If the device you're connecting to is on premises, we recommend you run on the local sensor. If you're connecting to a cloud service, we recommend you run on the DP.

  10. Click Next. The Configuration tab appears.

    The asterisk (*) indicates a required field.

  11. Enter the Hostname you noted above in Obtaining Credentials.

  12. Select the Protocol, either HTTP or HTTPS.

  13. Enter the Username and Password you noted above in Obtaining Credentials.

  14. Click Next. The final confirmation tab, Done, appears.

  15. Click Submit.

Testing the Connector

When you define an ESET Responder, we recommend that you run a test to validate the connectivity parameters you entered. (The test validates authentication / connectivity).

  1. Click System | Connectors (under Integrations). The Connector Overview appears.

  2. Locate the connector that you want to test.

  3. Click Test at the right side of that row. The test runs immediately.

    Note that you may run only one test at a time.

    Stellar Cyber conducts a basic connectivity test for the connector and reports a success or failure result. A successful test indicates that you entered all of the connector information correctly.

    To aid troubleshooting your connector, the dialog remains open until you explicitly close it by using the X button. If the test fails, you can select the  button from the same row to review and correct issues.

    The connector status is updated every five (5) minutes. A successful test clears the connector status, but if issues persist, the status reverts to failed after a minute.

    Repeat the test as needed.

    Success

    Failure with summary of issue:

    Show More example detail:

If the test fails, the common HTTP status error codes are as follows:

HTTP Error Code HTTP Standard Error Name Explanation Recommendation
400 Bad Request This error occurs when there is an error in the connector configuration.

Did you configure the connector correctly?
401 Unauthorized

This error occurs when an authentication credential is invalid or when a user does not have sufficient privileges to access a specific API.

Did you enter your credentials correctly?

Are your credentials expired?

Are your credentials entitled or licensed for that specific resource?
403 Forbidden This error occurs when the permission or scope is not correct in a valid credential.

Did you enter your credentials correctly?

Do you have the required role or permissions for that credential?

404 Not Found This error occurs when a URL path does not resolve to an entity. Did you enter your API URL correctly?
429 Too Many Requests

This error occurs when the API server receives too much traffic or if a user’s license or entitlement quota is exceeded.

The server or user license/quota will eventually recover. The connector will periodically retry the query.

If this occurs unexpectedly or too often, work with your API provider to investigate the server limits, user licensing, or quotas.

For a full list of codes, refer to HTTP response status codes.

Using Actions

With an ESET Responder, you can:

Manually Triggering an Action

To manually trigger an action with an ESET Responder:

  1. Click Investigate | Threat Hunting. The Interflow Search tab appears.

  2. Change the Indices for the record type, for example, Alerts.

  3. Scroll down the page and click the icon for More Info in the Actions column.

  4. Click the Actions tab. Webhook actions appear under External Actions.

  5. Click an ESET Webhook action. The template populates the fields in the Path and Query and the JSON Body.

  6. Modify the JSON Body by filling in any empty fields as follows:

    • Enter the targets for devicesUuids.

    • (Optional) For manual, you can enter customized settings such as expireTime and createTime. Follow the guidance in the ESET documentation for Swagger UI.

  7. To perform the action, click Submit.

Viewing Action Status

To view action status:

  1. Click Respond | Actions.

  2. Click Webhook Actions.

    You can view the action status or error message in the table.

Performing an ATH Action

To perform an ATH action with an ESET Responder:

  1. Click Respond | Automation.

  2. Click Create.

  3. Scroll down to Actions.

  4. Click the button to add an action. Another action appears below the existing action.

  5. Select the Trigger on condition.

  6. Select Webhook Responder for the Type.

  7. Select a previously configured ESET Responder from the drop-down menu for the Webhook Responder. The template populates the fields in the Path and Query and JSON Body.

  8. You can modify the JSON Body by filling in any empty fields as follows:

    • Enter the targets for devicesUuids.

    • (Optional) For manual, you can enter customized settings such as expireTime and createTime. Follow the guidance in the ESET documentation for Swagger UI.

  9. (Optional) Click Override Default Settings to override the playbook's mute settings and mute just this action.

  10. Click Submit.