Vectra Create Incident Based on Priority for Accounts

Back


Id	af6f2812-0187-4cc9-822a-952f8b5b6b7e
Rulename	Vectra Create Incident Based on Priority for Accounts
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_Account.yaml
Version	1.1.1
Arm template	af6f2812-0187-4cc9-822a-952f8b5b6b7e.json

KQL

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

YAML

status: Available
queryFrequency: 10m
queryPeriod: 10m
kind: Scheduled
version: 1.1.1
triggerThreshold: 0
relevantTechniques:
- T1546
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.
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra XDR/Analytic Rules/Priority_Account.yaml
customDetails:
  attack_profile: attack_profile
  ip_address: ip
  entity_type: entity_type
  entity_id: id
  tags: tags
requiredDataConnectors:
- connectorId: VectraXDR
  dataTypes:
  - Entities_Data_CL
id: af6f2812-0187-4cc9-822a-952f8b5b6b7e
tactics:
- Persistence
name: Vectra Create Incident Based on Priority for Accounts
triggerOperator: GreaterThan
suppressionDuration: PT1H
eventGroupingSettings:
  aggregationKind: AlertPerResult
query: |
  Entities_Data_CL
  | where entity_type == "account" and is_prioritized == true
  | summarize arg_max(['last_modified_timestamp'], *) by ['name']  
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: name
  entityType: Account
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: true
    matchingMethod: AllEntities
    lookbackDuration: P7D
    enabled: true
  createIncident: true
suppressionEnabled: false
alertDetailsOverride:
  alertDisplayNameFormat: Vectra AI Incident- {{name}}
  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
severity: Medium

ARM