An insider compromise investigation has been requested to provide evidence of an unauthorized removable drive...

In Cortex XDR, theDevice Configuration profile(an extension of the agent settings profile) controls how the Cortex XDR agent monitors and manages device-related activities, such as the mounting of removable drives. By default, the Device Configuration profile includes monitoring for device mount events, such as when a USB drive or other removable media is connected to an endpoint. These events are logged and can be accessed for investigations, such as detecting unauthorized drive usage in an insider compromise scenario.

Correct Answer Analysis (A):TheHost Inventory -> Mountssection in the Cortex XDR console provides a detailed view of mount events for each endpoint, including information about removable drives mounted on the system. This is the most straightforward place to find evidence of an unauthorized removable drive being mounted on the company laptop, as it aggregates device mount events captured by the default Device Configuration profile.

Why not the other options?

B. dataset = xdr_data | filter event_type = ENUM.MOUNT and event_sub_type = ENUM.MOUNT_DRIVE_MOUNT: This XQL query is technically correct for retrieving mount events from thexdr_datadataset, but it requires manual query execution and knowledge of specific event types. The Host Inventory -> Mounts section is a more user-friendly and direct method for accessing this data, making it the preferred choice for an engineer investigating this issue.

C. The requested data requires additional configuration to be captured: This is incorrect because the default Device Configuration profile already captures mount events for removable drives, so no additional configuration is needed.

D. preset = device_control: Thedevice_controlpreset in XQL retrieves device control-related events (e.g., USB block or allow actions), but it may not specifically include mount events unless explicitly configured. The Host Inventory -> Mounts section is more targeted for this investigation.

Exact Extract or Reference:

TheCortex XDR Documentation Portaldescribes device monitoring: “The default Device Configuration profile logs mount events for removable drives, which can be viewed in the Host Inventory -> Mounts section of the console” (paraphrased from the Device Configuration section). TheEDU-262: Cortex XDR Investigation and Responsecourse covers investigation techniques, stating that “mount events for removable drives are accessible in the Host Inventory for endpoints with default device monitoring” (paraphrased from course materials). ThePalo Alto Networks Certified XDR Engineer datasheetincludes “maintenance and troubleshooting” as a key exam topic, encompassing investigation of endpoint events.