Sophos XDR: Instructions for query check whether the workstations can be installed with Sophos certificate

Overview

Sophos Extended Detection and Response (XDR) allows you to investigate detected threats (“threat cases”) and search for new threats or security vulnerabilities. It also enables remote monitoring and troubleshooting of devices. With Sophos XDR, you can access both cloud-stored data and data directly on devices, ensuring you always have the most up-to-date information.

This article provides a guide on how to use the Live Discover tool of Sophos CIXA with EDR to query the entire workstation and server system to obtain information about which machines have been installed with Sophos certificates. This helps reduce the time for administrators to manually check each machine for verification.

Query Diagram

How to configure

Step 1: Create Custom Query

Login Sophos Central Admin -> Choose Threat Analysis Center -> Choose Live Discover -> Enable Designer mode -> Click Create new query

Enter name for your query
In Category: Choose category that you want to save to
In Source: Choose Live Endpoint and choose OS that you want (some queries may not be supported for the selected operating system).
In Show variable: Click Add variable
Enter variable with common_name and store_location: The value will be the Sophos certificate of your Sophos XGS device and LocalMachine if it is a workgroup environment

In SQL: Enter code

SELECT
common_name,
subject,
issuer,
ca,
self_signed,
not_valid_before,
not_valid_after,
signing_algorithm,
key_algorithm,
key_strength,
key_usage,
subject_key_id,
authority_key_id,
sha1,
path,
serial,
sid,
store_location,
store,
username,
store_id
FROM certificates
WHERE
common_name LIKE ‘$$common_name$$’
AND store_location LIKE ‘$$store_location$$’