Identify Endpoints Removed From Isolation
Query
DeviceRegistryEvents
| where ActionType == "RegistryValueDeleted"
| where PreviousRegistryKey == @"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Advanced Threat Protection"
| where RegistryValueType == "None"
| where PreviousRegistryValueData == "1"
| where PreviousRegistryValueName == "DisableEnterpriseAuthProxyValueToRestoreAfterIsolation"
| project Timestamp, DeviceId, DeviceNameAbout this query
Identify endpoints removed from isolation
Description
The following query will return endpoints which have been removed from isolation by looking into relevant registry modifications.
Microsoft Defender XDR
Versioning
| Version | Date | Comments |
|---|---|---|
| 1.0 | 24/02/2024 | Initial publish |
| 1.1 | 29/02/2024 | Change contain to isolate, thanks to Alex Verboon |
Explanation
This query looks for endpoints that have been removed from isolation by checking registry modifications related to Microsoft Defender XDR. It specifically looks for registry values that have been deleted in a certain key and with specific data. The results include the timestamp, device ID, and device name of the endpoints.