TIE DCShadow

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Id	874e3530-552e-437b-ba2e-227979e7e43c
Rulename	TIE DCShadow
Description	Searches for DCShadow attacks.
Severity	High
Tactics	DefenseEvasion
Techniques	T1207
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/TIEDCShadow.yaml
Version	1.0.1
Arm template	874e3530-552e-437b-ba2e-227979e7e43c.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 == "DCShadow"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))

YAML

queryFrequency: 2h
kind: Scheduled
version: 1.0.1
relevantTechniques:
- T1207
triggerOperator: gt
requiredDataConnectors:
- connectorId: TenableIE
  dataTypes:
  - Tenable_IE_CL
id: 874e3530-552e-437b-ba2e-227979e7e43c
name: TIE DCShadow
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 == "DCShadow"
    | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
queryPeriod: 2h
triggerThreshold: 0
description: |
    'Searches for DCShadow attacks.'
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
severity: High
tactics:
- DefenseEvasion
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIEDCShadow.yaml

ARM