Vectra Create Incident Based on Tag for Hosts | Microsoft Sentinel Analytic Rules

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Id	8b7a1a64-8ef2-4000-b8c9-9bca3b93aace
Rulename	Vectra Create Incident Based on Tag for Hosts
Description	Create an incident when the host entity presents a specific tag. If the tag is present, an incident should be created and marked with highest priority.
Severity	High
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/Create_Incident_Based_On_Tag_For_Host_Entity.yaml
Version	1.1.0
Arm template	8b7a1a64-8ef2-4000-b8c9-9bca3b93aace.json

KQL

Entities_Data_CL
| where entity_type == "host"
| extend Tags = todynamic(tags)
| where set_has_element(Tags, "MDR - Customer Escalation")
| summarize arg_max(['last_modified_timestamp'], *) by ['name']

YAML

suppressionDuration: PT1H
name: Vectra Create Incident Based on Tag for Hosts
suppressionEnabled: false
triggerOperator: GreaterThan
kind: Scheduled
queryFrequency: 10m
description: Create an incident when the host entity presents a specific tag. If the tag is present, an incident should be created and marked with highest priority.
id: 8b7a1a64-8ef2-4000-b8c9-9bca3b93aace
triggerThreshold: 0
queryPeriod: 10m
query: |
  Entities_Data_CL
  | where entity_type == "host"
  | extend Tags = todynamic(tags)
  | where set_has_element(Tags, "MDR - Customer Escalation")
  | summarize arg_max(['last_modified_timestamp'], *) by ['name']
version: 1.1.0
customDetails:
  tags: tags
  ip_address: ip
  entity_id: id
  attack_profile: attack_profile
  entity_type: entity_type
status: Available
eventGroupingSettings:
  aggregationKind: AlertPerResult
severity: High
requiredDataConnectors:
- connectorId: VectraXDR
  dataTypes:
  - Entities_Data_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Create_Incident_Based_On_Tag_For_Host_Entity.yaml
incidentConfiguration:
  groupingConfiguration:
    groupByAlertDetails:
    - DisplayName
    lookbackDuration: P7D
    enabled: true
    reopenClosedIncident: false
    matchingMethod: AllEntities
    groupByEntities:
    - Host
  createIncident: true
alertDetailsOverride:
  alertDescriptionFormat: An incident has been escalated for Vectra AI entity {{name}} that is presenting an urgency score of {{urgency_score}}
  alertDisplayNameFormat: Vectra AI Incident- {{name}}
  alertDynamicProperties:
  - value: url
    alertProperty: AlertLink
relevantTechniques:
- T1546
tactics:
- Persistence
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: name
  entityType: Host

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/8b7a1a64-8ef2-4000-b8c9-9bca3b93aace')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/8b7a1a64-8ef2-4000-b8c9-9bca3b93aace')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "An incident has been escalated 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": "8b7a1a64-8ef2-4000-b8c9-9bca3b93aace",
        "customDetails": {
          "attack_profile": "attack_profile",
          "entity_id": "id",
          "entity_type": "entity_type",
          "ip_address": "ip",
          "tags": "tags"
        },
        "description": "Create an incident when the host entity presents a specific tag. If the tag is present, an incident should be created and marked with highest priority.",
        "displayName": "Vectra Create Incident Based on Tag for Hosts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "name",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByAlertDetails": [
              "DisplayName"
            ],
            "groupByEntities": [
              "Host"
            ],
            "lookbackDuration": "P7D",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Create_Incident_Based_On_Tag_For_Host_Entity.yaml",
        "query": "Entities_Data_CL\n| where entity_type == \"host\"\n| extend Tags = todynamic(tags)\n| where set_has_element(Tags, \"MDR - Customer Escalation\")\n| summarize arg_max(['last_modified_timestamp'], *) by ['name']\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1546"
        ],
        "templateVersion": "1.1.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}