CrowdStrike Falcon Insight Cloud Device
Configure a CrowdStrike Falcon Insight (CrowdStrike) cloud device to receive IOCs from Threat Command. When you add the device to Threat Command, it will be configured to receive IOCs.
You can use this integration to create CrowdStrike detections. A CrowdStrike incident (suspected breach) can consist of either one high-severity detection or multiple medium and low-severity detections.
When IOCs are pushed to the device, all IOCs are pushed, every time.
IOCs are pushed, together with the following Threat Command enrichment data:
- Source name (reported feed)
- First seen
- Last seen
IOC groups for this device can consist of domains, IP addresses, and file hashes (MD5 or SHA256).
- You have administrative credentials to access Threat Command with a subscription to the Automation and TIP modules.
- You have the CrowdStrike API Client ID, Secret Key, and Base API URL. The API client must have read and write permissions (API scope) for IOCs (Indicators of Compromise) and IOC Manager APIs.
Add a CrowdStrike cloud device to Threat Command
You can add a CrowdStrike cloud device to Threat Command.
To add a CrowdStrike device:
Log in to Threat Command at https://dashboard.ti.insight.rapid7.com
From the Integrations page, click Cloud.
Click Add new device.
In the Add New Cloud Device dialog, type a user-defined name for the device.
The name can contain a maximum of 50 letters, spaces, numbers, and underscores.
For the Device type, select CrowdStrike.
The default device limit is displayed.
(Optional) You can change the IOCs limit.
Type in the CrowdStrike Client ID, Secret Key, and Base API URL.
(Optional) To create detections from Threat Command IOCs, click Create detections from IOCs.
It is recommended to click Test Credentials to ensure that the credentials are valid. If the credentials are not valid, a message is displayed.
To verify that the new device is displayed in Threat Command, select Automation > Integrations.
If this window is already open, refresh it by selecting Automation > Integrations from the menu.
The new device is added to the cloud integrations device list. Next to the device name, there is a red dot, indicating that communication has not yet been established. The dot will change to green when the device is synchronized. If the device cannot synchronize for more than 48 hours, an email warning is sent to the account administrator.
Viewing IOCs via CrowdStrike
Due to a CrowdStrike limitation, IOCs that are pushed from Threat Command are not visible in the CrowdStrike UI, rather only using the CrowdStrike API as custom queries. For a full description of the API, see the CrowdStrike "Custom IOCs" section.
Before you begin, ensure that you have the token that is required for API authentication.
Using API calls, you can get multiple IOCs or a single IOC. CrowdStrike limits the responses per call to 500 IOCs, which you can configure, as explained in the CrowdStrike API documentation.
Before every API call, you must pass the generated token using an authorization header, for example: Bearer <token>
To get all IOCs:
- Issue this GET API call: https://api.crowdstrike.com/indicators/queries/iocs/v1 In this API request, you can change the number of IOCs presented.
To get a specific IOC:
- Issue this GET API call: https://api.crowdstrike.com/indicators/entities/iocs/v1?type=domain&value=example.com
You must specify the IOC type and value. In this example, we used: