Google Threat Intelligence - Threat Hunting Domain

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Id	d9e1646c-dc17-4150-ac85-581f5c9cb41f
Rulename	Google Threat Intelligence - Threat Hunting Domain
Description	Google Threat Intelligence domain correlation.
Severity	Medium
Tactics	CommandAndControl
Techniques	T1071
Required data connectors	ThreatIntelligence
Kind	Scheduled
Query frequency	30m
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google Threat Intelligence/Analytic Rules/ThreatHunting/ThreatHuntDomain.yaml
Version	1.0.0
Arm template	d9e1646c-dc17-4150-ac85-581f5c9cb41f.json

KQL

let ioc_lookBack = 1d;
_Im_Dns
| where isnotempty(DnsQuery)
| extend lowerDomain=tolower(DnsQuery)
| join kind=inner (
ThreatIntelIndicators
| where ObservableKey == 'domain-name:value'
| where isnotempty(ObservableValue)
| where SourceSystem == "Google Threat Intelligence"
| where TimeGenerated >= ago(ioc_lookBack)
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
| where IsActive == true and (isnull(ValidUntil) or ValidUntil > now())
| extend lowerDomain=tolower(ObservableValue)
) on lowerDomain
| project Domain=ObservableValue, Description=Data.description, Type, TimeGenerated

YAML

severity: Medium
queryPeriod: 1d
name: Google Threat Intelligence - Threat Hunting Domain
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Google Threat Intelligence/Analytic Rules/ThreatHunting/ThreatHuntDomain.yaml
kind: Scheduled
entityMappings:
- fieldMappings:
  - columnName: Domain
    identifier: DomainName
  entityType: DNS
alertDetailsOverride:
  alertDescriptionFormat: Correlation found from the {{Type}} table.
  alertDisplayNameFormat: Google Threat Intelligence Match
version: 1.0.0
relevantTechniques:
- T1071
id: d9e1646c-dc17-4150-ac85-581f5c9cb41f
queryFrequency: 30m
triggerThreshold: 0
triggerOperator: gt
incidentConfiguration:
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: 1h
  createIncident: true
eventGroupingSettings:
  aggregationKind: AlertPerResult
description: |
    'Google Threat Intelligence domain correlation.'
requiredDataConnectors:
- connectorId: ThreatIntelligence
  dataTypes:
  - ThreatIntelIndicators
tactics:
- CommandAndControl
query: |
  let ioc_lookBack = 1d;
  _Im_Dns
  | where isnotempty(DnsQuery)
  | extend lowerDomain=tolower(DnsQuery)
  | join kind=inner (
  ThreatIntelIndicators
  | where ObservableKey == 'domain-name:value'
  | where isnotempty(ObservableValue)
  | where SourceSystem == "Google Threat Intelligence"
  | where TimeGenerated >= ago(ioc_lookBack)
  | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
  | where IsActive == true and (isnull(ValidUntil) or ValidUntil > now())
  | extend lowerDomain=tolower(ObservableValue)
  ) on lowerDomain
  | project Domain=ObservableValue, Description=Data.description, Type, TimeGenerated

ARM