Alsid DCSync

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Id	d3c658bd-8da9-4372-82e4-aaffa922f428
Rulename	Alsid DCSync
Description	Searches for DCSync attacks
Severity	High
Tactics	CredentialAccess
Techniques	T1003.006
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/DCSync.yaml
Version	1.0.1
Arm template	d3c658bd-8da9-4372-82e4-aaffa922f428.json

KQL

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

YAML

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Alsid For AD/Analytic Rules/DCSync.yaml
queryPeriod: 2h
description: |
    'Searches for DCSync attacks'
triggerThreshold: 0
name: Alsid DCSync
triggerOperator: gt
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
kind: Scheduled
requiredDataConnectors:
- connectorId: AlsidForAD
  dataTypes:
  - AlsidForADLog_CL
queryFrequency: 2h
tactics:
- CredentialAccess
id: d3c658bd-8da9-4372-82e4-aaffa922f428
status: Available
version: 1.0.1
query: |
  afad_parser
  | where MessageType == 2 and Codename == "DCSync"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
severity: High
relevantTechniques:
- T1003.006

ARM