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

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

ARM