Tenablead DCSync

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Id	0c8d4de3-adb9-4161-a863-aa1e2c8bd959
Rulename	Tenable.ad DCSync
Description	Searches for DCSync attacks.
Severity	High
Tactics	CredentialAccess
Techniques	T1003.006
Required data connectors	Tenable.ad
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/TenableAD/Analytic Rules/TenableAdDCSync.yaml
Version	1.0.1
Arm template	0c8d4de3-adb9-4161-a863-aa1e2c8bd959.json

KQL

// For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
// Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
// Then, create the Kusto Function with alias afad_parser
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

queryPeriod: 2h
query: |
  // For the query to work properly, make sure you have imported the afad_parser.kql parser into the workspace
  // Retrieve the parser here: https://raw.githubusercontent.com/tenable/Azure-Sentinel/Tenable.ad-connector/Solutions/TenableAD/Parsers/afad_parser.kql
  // Then, create the Kusto Function with alias afad_parser
  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), '.'))  
name: Tenable.ad DCSync
entityMappings:
- fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdDCSync.yaml
requiredDataConnectors:
- connectorId: Tenable.ad
  dataTypes:
  - Tenable_ad_CL
description: |
    'Searches for DCSync attacks.'
kind: Scheduled
version: 1.0.1
queryFrequency: 2h
severity: High
relevantTechniques:
- T1003.006
triggerOperator: gt
triggerThreshold: 0
tactics:
- CredentialAccess
id: 0c8d4de3-adb9-4161-a863-aa1e2c8bd959

ARM