Vectra Create Incident Based on Priority for Hosts

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Id	9b51b0fb-0419-4450-9ea0-0a48751c4902
Rulename	Vectra Create Incident Based on Priority for Hosts
Description	Create an incident when an identity is suspected to be compromised. Vectra is using AI to prioritize an entity based on multiple factors (attack rating, velocity, breadth, importance.etc.). This layer of aggregation at the entity level provides a greater signal-to-noise ratio and help analyst focus on what matters.
Severity	Medium
Tactics	Persistence
Techniques	T1546
Required data connectors	VectraXDR
Kind	Scheduled
Query frequency	10m
Query period	10m
Trigger threshold	0
Trigger operator	GreaterThan
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Host.yaml
Version	1.1.1
Arm template	9b51b0fb-0419-4450-9ea0-0a48751c4902.json

KQL

Entities_Data_CL
| where entity_type == "host" and is_prioritized == true
| summarize arg_max(['last_modified_timestamp'], *) by ['name']

YAML

queryFrequency: 10m
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: name
    identifier: HostName
eventGroupingSettings:
  aggregationKind: AlertPerResult
version: 1.1.1
id: 9b51b0fb-0419-4450-9ea0-0a48751c4902
suppressionEnabled: false
severity: Medium
kind: Scheduled
suppressionDuration: PT1H
description: Create an incident when an identity is suspected to be compromised. Vectra is using AI to prioritize an entity based on multiple factors (attack rating, velocity, breadth, importance.etc.). This layer of aggregation at the entity level provides a greater signal-to-noise ratio and help analyst focus on what matters.
relevantTechniques:
- T1546
requiredDataConnectors:
- connectorId: VectraXDR
  dataTypes:
  - Entities_Data_CL
triggerOperator: GreaterThan
name: Vectra Create Incident Based on Priority for Hosts
tactics:
- Persistence
alertDetailsOverride:
  alertDescriptionFormat: An incident has been generated for Vectra AI entity {{name}} that is presenting an urgency score of {{urgency_score}}.
  alertDynamicProperties:
  - value: url
    alertProperty: AlertLink
  alertDisplayNameFormat: Vectra AI Incident- {{name}}
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Host.yaml
triggerThreshold: 0
queryPeriod: 10m
query: |
  Entities_Data_CL
  | where entity_type == "host" and is_prioritized == true
  | summarize arg_max(['last_modified_timestamp'], *) by ['name']  
status: Available
customDetails:
  entity_id: id
  tags: tags
  entity_type: entity_type
  ip_address: ip
  attack_profile: attack_profile
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    lookbackDuration: P7D
    enabled: true
    reopenClosedIncident: true
    matchingMethod: AllEntities

ARM