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

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

ARM