TIE DCSync

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Id	19d1f964-ddcf-437b-92ce-b9c1c14d24f1
Rulename	TIE DCSync
Description	Searches for DCSync attacks.
Severity	High
Tactics	CredentialAccess
Techniques	T1003.006
Required data connectors	TenableIE
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/Tenable App/Analytic Rules/TIEDCSync.yaml
Version	1.0.1
Arm template	19d1f964-ddcf-437b-92ce-b9c1c14d24f1.json

KQL

// For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
// Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
// 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

triggerThreshold: 0
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
requiredDataConnectors:
- dataTypes:
  - Tenable_IE_CL
  connectorId: TenableIE
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIEDCSync.yaml
name: TIE DCSync
relevantTechniques:
- T1003.006
query: |
  // For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
  // Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
  // 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), '.'))  
version: 1.0.1
queryPeriod: 2h
kind: Scheduled
id: 19d1f964-ddcf-437b-92ce-b9c1c14d24f1
description: |
    'Searches for DCSync attacks.'
queryFrequency: 2h
severity: High
triggerOperator: gt
tactics:
- CredentialAccess

ARM