// 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 == "DCShadow"
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))
description: |
'Searches for DCShadow attacks.'
kind: Scheduled
tactics:
- DefenseEvasion
requiredDataConnectors:
- connectorId: Tenable.ad
dataTypes:
- Tenable_ad_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/TenableAD/Analytic Rules/TenableAdDCShadow.yaml
severity: High
name: Tenable.ad DCShadow
triggerThreshold: 0
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 == "DCShadow"
| extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))
relevantTechniques:
- T1207
id: 861044f3-6eef-4f79-8609-e3764abb02f4
queryFrequency: 2h
entityMappings:
- entityType: Host
fieldMappings:
- columnName: HostName
identifier: HostName
- columnName: DnsDomain
identifier: DnsDomain
triggerOperator: gt
version: 1.0.1
