VTI - High Severity Domain Collision Detection

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Id	7be47078-657a-43cf-9c93-b4705a9f6134
Rulename	VTI - High Severity Domain Collision Detection
Description	This will alert when a collision is detected for EmailUrlInfo events with VTI high severity domain IoCs
Severity	High
Tactics	InitialAccess
Techniques	T1566
Required data connectors	VisaThreatIntelligence
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Visa Threat Intelligence (VTI)/Analytic Rules/VTIP_high_severity_domain.yaml
Version	1.0.0
Arm template	7be47078-657a-43cf-9c93-b4705a9f6134.json

KQL

EmailUrlInfo
| join kind=inner (VisaThreatIntelligenceIOC_CL  | where IOCType == "domain" and SourceSeverity == "High")
on $left.UrlDomain == $right.Value

YAML

kind: Scheduled
triggerThreshold: 0
triggerOperator: gt
version: 1.0.0
tactics:
- InitialAccess
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    matchingMethod: AllEntities
    enabled: true
    lookbackDuration: 1h
    reopenClosedIncident: false
suppressionDuration: 1h
queryFrequency: 1h
id: 7be47078-657a-43cf-9c93-b4705a9f6134
requiredDataConnectors:
- connectorId: VisaThreatIntelligence
  dataTypes:
  - VisaThreatIntelligenceIOC_CL
  - EmailUrlInfo
suppressionEnabled: false
name: VTI - High Severity Domain Collision Detection
description: This will alert when a collision is detected for EmailUrlInfo events with VTI high severity domain IoCs
relevantTechniques:
- T1566
entityMappings:
- entityType: URL
  fieldMappings:
  - columnName: Url
    identifier: Url
- entityType: DNS
  fieldMappings:
  - columnName: UrlDomain
    identifier: DomainName
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Visa Threat Intelligence (VTI)/Analytic Rules/VTIP_high_severity_domain.yaml
queryPeriod: 1h
severity: High
query: |-
  EmailUrlInfo
  | join kind=inner (VisaThreatIntelligenceIOC_CL  | where IOCType == "domain" and SourceSeverity == "High")
  on $left.UrlDomain == $right.Value  
eventGroupingSettings:
  aggregationKind: SingleAlert

ARM