Alsid DCShadow

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Id	25e0b2dd-3ad3-4d5b-80dd-720f4ef0f12c
Rulename	Alsid DCShadow
Description	Searches for DCShadow attacks
Severity	High
Tactics	DefenseEvasion
Techniques	T1207
Required data connectors	AlsidForAD
Kind	Scheduled
Query frequency	2h
Query period	2h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/DCShadow.yaml
Version	1.0.1
Arm template	25e0b2dd-3ad3-4d5b-80dd-720f4ef0f12c.json

KQL

afad_parser
| where MessageType == 2 and Codename == "DCShadow"
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

YAML

name: Alsid DCShadow
id: 25e0b2dd-3ad3-4d5b-80dd-720f4ef0f12c
description: |
    'Searches for DCShadow attacks'
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
version: 1.0.1
triggerOperator: gt
query: |
  afad_parser
  | where MessageType == 2 and Codename == "DCShadow"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
tactics:
- DefenseEvasion
kind: Scheduled
queryFrequency: 2h
severity: High
queryPeriod: 2h
requiredDataConnectors:
- dataTypes:
  - AlsidForADLog_CL
  connectorId: AlsidForAD
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/DCShadow.yaml
relevantTechniques:
- T1207

ARM