Vectra Create Incident Based on Priority for Accounts | Microsoft Sentinel Analytic Rules

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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%20XDR/Analytic%20Rules/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

suppressionDuration: PT1H
name: Vectra Create Incident Based on Priority for Accounts
version: 1.1.1
tactics:
- Persistence
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Priority_Account.yaml
query: |
  Entities_Data_CL
  | where entity_type == "account" and is_prioritized == true
  | summarize arg_max(['last_modified_timestamp'], *) by ['name']
customDetails:
  entity_id: id
  tags: tags
  ip_address: ip
  entity_type: entity_type
  attack_profile: attack_profile
requiredDataConnectors:
- connectorId: VectraXDR
  dataTypes:
  - Entities_Data_CL
severity: Medium
status: Available
relevantTechniques:
- T1546
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: url
  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}}.
kind: Scheduled
queryFrequency: 10m
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.
id: af6f2812-0187-4cc9-822a-952f8b5b6b7e
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: name
  entityType: Account
suppressionEnabled: false
eventGroupingSettings:
  aggregationKind: AlertPerResult
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    reopenClosedIncident: true
    matchingMethod: AllEntities
    enabled: true
    lookbackDuration: P7D
triggerThreshold: 0
queryPeriod: 10m
triggerOperator: GreaterThan

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/af6f2812-0187-4cc9-822a-952f8b5b6b7e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/af6f2812-0187-4cc9-822a-952f8b5b6b7e')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "An incident has been generated for Vectra AI entity {{name}} that is presenting an urgency score of {{urgency_score}}.",
          "alertDisplayNameFormat": "Vectra AI Incident- {{name}}",
          "alertDynamicProperties": [
            {
              "alertProperty": "AlertLink",
              "value": "url"
            }
          ]
        },
        "alertRuleTemplateName": "af6f2812-0187-4cc9-822a-952f8b5b6b7e",
        "customDetails": {
          "attack_profile": "attack_profile",
          "entity_id": "id",
          "entity_type": "entity_type",
          "ip_address": "ip",
          "tags": "tags"
        },
        "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.",
        "displayName": "Vectra Create Incident Based on Priority for Accounts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "name",
                "identifier": "Name"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "P7D",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": true
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Priority_Account.yaml",
        "query": "Entities_Data_CL\n| where entity_type == \"account\" and is_prioritized == true\n| summarize arg_max(['last_modified_timestamp'], *) by ['name']\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1546"
        ],
        "templateVersion": "1.1.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}