Sophos Central Threat Detection Dashboard \Detection view

A brief summary from my side:

Sophos support informed me, that the following detections (in the detecion-view) were deprecated on November 6:

• WIN-EVENT-4625: Failed login attempt
• WIN-EVENT-4698: Scheduled task created
• WIN-EVENT-4738: User account changed
• WIN-EVENT-4780: ACL set on admin account
• WIN-EVENT-4720: User account created
• WIN-EVENT-4726: User account deleted
• WIN-EVENT-4740: User account locked out
• WIN-EVENT-4737: Security enabled group change
• WIN-EVENT-4735: Security enabled group change
• WIN-EVENT-4765: SID history failed to be added to the account

( Marcel Can you confirm this? )

I have created a Live Discover query based on the list that Jonas posted above. This query uses the Data Lake as source so it would generate a list similar to what you would see previously in the detections view. 

To use the query go into Live Discover then toggle the Designer Mode and then click Create new query. In the screen that is shown next give the query a name, select Data Lake as the source and then copy the contents of the query below in the SQL box. After doing so you can run the query and it should show the events.

 

WITH events (DateTime, Who, Event, Device) AS (

   SELECT
      calendar_time,
      target_domain || '\' || target_username,
      CAST(eventid AS VARCHAR(8)) || ' - Invalid logon.',
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_invalid_logon'
     AND target_username <> '-'
   
   UNION ALL
   
   SELECT
      calendar_time,
      target_domain || '\' || target_username,
      CAST(eventid AS VARCHAR(8)) || ' - Account locked out.',
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_user_account_locked_out'
      
   UNION ALL
   
   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Created user: ' || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_user_account_created'
   
   UNION ALL

   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Modified user: ' || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_user_account_changed'
   
   UNION ALL
   
   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Deleted user: ' || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_user_account_deleted'

   UNION ALL
   
   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Modified security group: '  || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_security_enabled_grp_change_dc'
   
   UNION ALL

   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Created Task: ' || task_name,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_scheduled_task_created'
   
   UNION ALL
   
   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - Modified Admin ACL: ' || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_acl_set_on_admin_accounts_dc'

   UNION ALL
   
   SELECT
      calendar_time,
      subject_domain || '\' || subject_username,
      CAST(eventid AS VARCHAR(8)) || ' - SID history failed: ' || target_domain || '\' || target_username,
      meta_hostname
   FROM xdr_data
   WHERE query_name = 'windows_event_sid_history_failed_adding_to_account_dc'
   
)

SELECT * FROM events ORDER BY DateTime DESC

Huh, and the support desk seemed surprised when I complained about this in a ticket - now I look here and I see I'm not the only one...

Unilateral, unplublished changes are confusing.

Hopefully they'll at least notify in future, but it doesn't sound like they're rolling it back.

And thank you very much Marcel  for that query - works great, and I've scheduled a regular run for me to review.

Since yesterday I also see many unscannable malware detections from the firewalls in the detections view, which I have never seen before in this view.

It looks like the developers are still making changes at the moment.

 Sophos Central November Update - 2024.48 Release We released yesterday the Soft Launch of SFOS to Detection.

• Enhanced MDR and XDR integration of firewall log events - Create cases automatically, directly from firewall log events. See release notes for more details, and stay tuned for a more detailed post in a couple weeks. 

You can disable it for now, if it is to much for you: 

 Sophos Central November Update - 2024.48 Release We released yesterday the Soft Launch of SFOS to Detection.

• Enhanced MDR and XDR integration of firewall log events - Create cases automatically, directly from firewall log events. See release notes for more details, and stay tuned for a more detailed post in a couple weeks. 

You can disable it for now, if it is to much for you: