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

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

ARM