Team Cymru Scout Data Connector

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Attribute Value
Connector ID TeamCymruScout
Publisher Team Cymru Scout
Used in Solutions Team Cymru Scout
Collection Method Azure Function
Connector Definition Files TeamCymruScout_API_FunctionApp.json
Ingestion API Log Ingestion API — Sibling ARM template declares DCR / Log Ingestion API resources
Microsoft Learn View on Learn

The TeamCymruScout Data Connector allows users to bring Team Cymru Scout IP, domain and account usage data in Microsoft Sentinel for enrichment.

Tables Ingested

This connector ingests data into the following tables:

Table Transformations Ingestion API Lake-Only
Cymru_Scout_Account_Usage_Data_CL ✗ ✓ ✗
Cymru_Scout_Domain_Data_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Communications_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Details_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Fingerprints_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Foundation_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_OpenPorts_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_PDNS_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Summary_Certs_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Summary_Details_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Summary_Fingerprints_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Summary_OpenPorts_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_Summary_PDNS_CL ✗ ✓ ✗
Cymru_Scout_IP_Data_x509_CL ✗ ✓ ✗

💡 Tip: Tables with Ingestion API support allow data ingestion via the Azure Monitor Data Collector API, which also enables custom transformations during ingestion.

Permissions

Resource Provider Permissions:

Custom Permissions:

Setup Instructions

⚠️ Note: These instructions were automatically generated from the connector's user interface definition file using AI and may not be fully accurate. Please verify all configuration steps in the Microsoft Sentinel portal.

NOTE: This connector uses Azure Functions to connect to the Team Cymru Scout API to pull its logs into Microsoft Sentinel. This might result in additional data ingestion costs. Check the Azure Functions pricing page for details.

(Optional Step) Securely store workspace and API authorization key(s) or token(s) in Azure Key Vault. Azure Key Vault provides a secure mechanism to store and retrieve key values. Follow these instructions to use Azure Key Vault with an Azure Function App.

STEP 1 - Steps to Create Team Cymru Scout API Key

Follow these instructions to create a Team Cymru Scout API Key.

  1. Refer to the API Keys document to generate an API key to use as an alternate form of authorization.

STEP 2 - App Registration steps for the Application in Microsoft Entra ID

This integration requires an App registration in the Azure portal. Follow the steps in this section to create a new application in Microsoft Entra ID:

  1. Sign in to the Azure portal.
  2. Search for and select Microsoft Entra ID.
  3. Under Manage, select App registrations > New registration.
  4. Enter a display Name for your application.
  5. Select Register to complete the initial app registration.
  6. When registration finishes, the Azure portal displays the app registration's Overview pane. You see the Application (client) ID and Tenant ID. The client ID and Tenant ID is required as configuration parameters for the execution of TeamCymruScout Data Connector.

Reference link: https://learn.microsoft.com/azure/active-directory/develop/quickstart-register-app

STEP 3 - Add a client secret for application in Microsoft Entra ID

Sometimes called an application password, a client secret is a string value required for the execution of TeamCymruScout Data Connector. Follow the steps in this section to create a new Client Secret:

  1. In the Azure portal, in App registrations, select your application.
  2. Select Certificates & secrets > Client secrets > New client secret.
  3. Add a description for your client secret.
  4. Select an expiration for the secret or specify a custom lifetime. Limit is 24 months.
  5. Select Add.
  6. Record the secret's value for use in your client application code. This secret value is never displayed again after you leave this page. The secret value is required as configuration parameter for the execution of TeamCymruScout Data Connector.

Reference link: https://learn.microsoft.com/azure/active-directory/develop/quickstart-register-app#add-a-client-secret

STEP 4 - Get Object ID of your application in Microsoft Entra ID

After creating your app registration, follow the steps in this section to get Object ID:

  1. Go to Microsoft Entra ID.
  2. Select Enterprise applications from the left menu.
  3. Find your newly created application in the list (you can search by the name you provided).
  4. Click on the application.
  5. On the overview page, copy the Object ID. This is the AzureEntraObjectId needed for your ARM template role assignment.

STEP 5 - Assign role of Contributor to application in Microsoft Entra ID

Follow the steps in this section to assign the role:

  1. In the Azure portal, Go to Resource Group and select your resource group.
  2. Go to Access control (IAM) from left panel.
  3. Click on Add, and then select Add role assignment.
  4. Select Contributor as role and click on next.
  5. In Assign access to, select User, group, or service principal.
  6. Click on add members and type your app name that you have created and select it.
  7. Now click on Review + assign and then again click on Review + assign.

Reference link: https://learn.microsoft.com/azure/role-based-access-control/role-assignments-portal

STEP 6 - Upload csv with indictaors in Watchlist

Follow the steps in this section to upload csv containing indicators in watchlist:

  1. In the Azure portal, Go to Microsoft Sentinel and select your workspace.
  2. Go to Watchlist under Configuration section from left panel.
  3. Click on TeamCymruScoutDomainData, and then select Bulk update from Update watchlist.
  4. Upload your csv files with domain indicators in Upload file input and click on Next: Review+Create.
  5. Once validation is successful, click on Update.
  6. Follow the same steps to update TeamCymruScoutIPData watchlist for ip indicators.

Reference link: Bulk update a watchlist

STEP 7 - Choose ONE from the following two deployment options to deploy the connector and the associated Azure Function

8. Option 1 - Azure Resource Manager (ARM) Template

Use this method for automated deployment of the TeamCymruScout data connector.

  1. Click the Deploy to Azure button below.

    Deploy To Azure

  2. Select the preferred Subscription, Resource Group and Location.

  3. Enter the below information : Location WorkspaceName Function Name TeamCymruScoutBaseURL AuthenticationType Username Password APIKey IPValues DomainValues APIType AzureClientId AzureClientSecret TenantId AzureEntraObjectId IPTableName DomainTableName AccountUsageTableName Schedule AccountUsageSchedule LogLevel

  4. Mark the checkbox labeled I agree to the terms and conditions stated above.

  5. Click Purchase to deploy.

9. Option 2 - Manual Deployment of Azure Functions

Use the following step-by-step instructions to deploy the TeamCymruScout data connector manually with Azure Functions (Deployment via Visual Studio Code).

1. Deploy a Function App

NOTE: You will need to prepare VS code for Azure function development.

  1. Download the Azure Function App file. Extract archive to your local development computer.

  2. Start VS Code. Choose File in the main menu and select Open Folder.

  3. Select the top level folder from extracted files.

  4. Choose the Azure icon in the Activity bar, then in the Azure: Functions area, choose the Deploy to function app button. If you aren't already signed in, choose the Azure icon in the Activity bar, then in the Azure: Functions area, choose Sign in to Azure If you're already signed in, go to the next step.

  5. Provide the following information at the prompts:

    a. Select folder: Choose a folder from your workspace or browse to one that contains your function app.

    b. Select Subscription: Choose the subscription to use.

    c. Select Create new Function App in Azure (Don't choose the Advanced option)

    d. Enter a globally unique name for the function app: Type a name that is valid in a URL path. The name you type is validated to make sure that it's unique in Azure Functions. (e.g. CymruScoutXXXXX).

    e. Select a runtime: Choose Python 3.12 or above.

    f. Select a location for new resources. For better performance and lower costs choose the same region where Microsoft Sentinel is located.

  6. Deployment will begin. A notification is displayed after your function app is created and the deployment package is applied.

  7. Go to Azure Portal for the Function App configuration.

2. Configure the Function App

  1. In the Function App, select the Function App Name and select Configuration.
  2. In the Application settings tab, select + New application setting.
  3. Add each of the following application settings individually, with their respective values (case-sensitive): CymruScoutBaseURL AuthenticationType TeamCymruScoutUsername TeamCymruScoutPassword APIKey IPValues DomainValues APIType AZURE_CLIENT_ID AZURE_CLIENT_SECRET AZURE_TENANT_ID IPTableName DomainTableName AccountUsageTableName Schedule AccountUsageSchedule LogLevel AZURE_DATA_COLLECTION_ENDPOINT AZURE_DATA_COLLECTION_RULE_ID_MAIN_TABLES AZURE_DATA_COLLECTION_RULE_ID_SUB_TABLES
  4. Once all application settings have been entered, click Save.

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