Vectra RUX - Create Incident for Escalated Account Detection or Unresolved Priority Account

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Id	231904f5-b670-4223-9bec-2e9aeca9cf5a
Rulename	Vectra RUX - Create Incident for Escalated Account Detection or Unresolved Priority Account
Description	This query creates a Microsoft Sentinel incident when a detection on an account entity has been escalated in Vectra (investigation_status = escalated). Escalation indicates that a human analyst or MDR service has reviewed the detection and determined it requires immediate customer attention or notification. One incident is created per detection - grouping is based on alert display name so that repeated rule evaluations against the same detection do not create duplicate incidents. This query creates a Microsoft Sentinel incident when Vectra AI identifies an account entity with one or more detections marked as unresolved and prioritized (unresolved_priority = true). Vectra’s AI engine assigns priority based on attack rating, velocity, breadth, and identity privilege level. This rule surfaces account-based threats that require analyst attention. Incidents are grouped per account entity and remain open while the threat persists. Once all associated detections are resolved in Vectra, the incident can be closed in Microsoft Sentinel.
Severity	High
Tactics	Discovery LateralMovement CredentialAccess Exfiltration CommandAndControl Persistence
Techniques	T1078 T1110 T1003 T1041 T1071
Required data connectors	VectraRUXConnector
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/Vectra_RUX_Incident_Detection_Account.yaml
Version	1.0.0
Arm template	231904f5-b670-4223-9bec-2e9aeca9cf5a.json

KQL

VectraDetectionsCombined
| where ["Entity Type"] == "account"
| summarize arg_max(TimeGenerated, *) by ["Detection ID"]
| where ["Investigation Status"] == "escalated" or ["Unresolved Priority"] == true
| extend
    detection_name     = ["D Type Vname"],
    detection_category = ["Detection Category"],
    entity_url         = replace_string(replace_string(URL, "api/v3.4/", ""), "api/v3.5/", ""),
    mitre_techniques   = tostring(Mitre),
    detection_tags     = tostring(Tags),
    assigned_to        = ["Assigned To"],
    entity_name = ["Entity Name"],
    entity_uid = ["Entity UID"],
    entity_id = ["Entity ID"],
    detection_id = ["Detection ID"],
    external_reference = ["External Reference ID"],
    investigation_status = ["Investigation Status"],
    entity_type = ["Entity Type"]

YAML

incidentConfiguration:
  groupingConfiguration:
    groupByAlertDetails:
    - DisplayName
    lookbackDuration: P7D
    reopenClosedIncident: false
    groupByEntities:
    - Account
    matchingMethod: Selected
    enabled: true
  createIncident: true
triggerOperator: GreaterThan
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Vectra_RUX_Incident_Detection_Account.yaml
triggerThreshold: 0
id: 231904f5-b670-4223-9bec-2e9aeca9cf5a
suppressionEnabled: false
kind: Scheduled
queryPeriod: 10m
eventGroupingSettings:
  aggregationKind: AlertPerResult
tactics:
- Discovery
- LateralMovement
- CredentialAccess
- Exfiltration
- CommandAndControl
- Persistence
queryFrequency: 10m
alertDetailsOverride:
  alertDescriptionFormat: |
    Vectra AI has escalated detection {{detection_name}} ({{detection_category}}) on account or identified account {{entity_name}} as a priority threat. See custom details for full context.
  alertDisplayNameFormat: Vectra AI - {{detection_name}} on {{entity_name}}
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: entity_url
  - alertProperty: Techniques
    value: mitre_techniques
severity: High
name: Vectra RUX - Create Incident for Escalated Account Detection or Unresolved Priority Account
customDetails:
  detection_id: detection_id
  assigned_to: assigned_to
  detection_name: detection_name
  entity_url: entity_url
  mitre_techniques: mitre_techniques
  category: detection_category
  entity_id: entity_id
  tags: detection_tags
  entity_uid: entity_uid
  external_reference: external_reference
  entity_type: entity_type
  investigation_status: investigation_status
requiredDataConnectors:
- connectorId: VectraRUXConnector
  dataTypes:
  - VectraDetectionsCombined
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: entity_name
  - identifier: UPNSuffix
    columnName: entity_uid
version: 1.0.0
relevantTechniques:
- T1078
- T1110
- T1003
- T1041
- T1071
status: Available
query: |
  VectraDetectionsCombined
  | where ["Entity Type"] == "account"
  | summarize arg_max(TimeGenerated, *) by ["Detection ID"]
  | where ["Investigation Status"] == "escalated" or ["Unresolved Priority"] == true
  | extend
      detection_name     = ["D Type Vname"],
      detection_category = ["Detection Category"],
      entity_url         = replace_string(replace_string(URL, "api/v3.4/", ""), "api/v3.5/", ""),
      mitre_techniques   = tostring(Mitre),
      detection_tags     = tostring(Tags),
      assigned_to        = ["Assigned To"],
      entity_name = ["Entity Name"],
      entity_uid = ["Entity UID"],
      entity_id = ["Entity ID"],
      detection_id = ["Detection ID"],
      external_reference = ["External Reference ID"],
      investigation_status = ["Investigation Status"],
      entity_type = ["Entity Type"]
suppressionDuration: PT1H
description: |
  This query creates a Microsoft Sentinel incident when a detection on an account entity has been escalated in Vectra
  (investigation_status = escalated). Escalation indicates that a human analyst or MDR service
  has reviewed the detection and determined it requires immediate customer attention or notification.
  One incident is created per detection - grouping is based on alert display name so that
  repeated rule evaluations against the same detection do not create duplicate incidents.

  This query creates a Microsoft Sentinel incident when Vectra AI identifies an account entity with one or more detections
  marked as unresolved and prioritized (unresolved_priority = true). Vectra's AI engine assigns
  priority based on attack rating, velocity, breadth, and identity privilege level. This rule surfaces
  account-based threats that require analyst attention.

  Incidents are grouped per account entity and remain open while the threat persists. Once all associated
  detections are resolved in Vectra, the incident can be closed in Microsoft Sentinel.

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/231904f5-b670-4223-9bec-2e9aeca9cf5a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/231904f5-b670-4223-9bec-2e9aeca9cf5a')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Vectra AI has escalated detection {{detection_name}} ({{detection_category}}) on account or identified account {{entity_name}} as a priority threat. See custom details for full context.\n",
          "alertDisplayNameFormat": "Vectra AI - {{detection_name}} on {{entity_name}}",
          "alertDynamicProperties": [
            {
              "alertProperty": "AlertLink",
              "value": "entity_url"
            },
            {
              "alertProperty": "Techniques",
              "value": "mitre_techniques"
            }
          ]
        },
        "alertRuleTemplateName": "231904f5-b670-4223-9bec-2e9aeca9cf5a",
        "customDetails": {
          "assigned_to": "assigned_to",
          "category": "detection_category",
          "detection_id": "detection_id",
          "detection_name": "detection_name",
          "entity_id": "entity_id",
          "entity_type": "entity_type",
          "entity_uid": "entity_uid",
          "entity_url": "entity_url",
          "external_reference": "external_reference",
          "investigation_status": "investigation_status",
          "mitre_techniques": "mitre_techniques",
          "tags": "detection_tags"
        },
        "description": "This query creates a Microsoft Sentinel incident when a detection on an account entity has been escalated in Vectra\n(investigation_status = escalated). Escalation indicates that a human analyst or MDR service\nhas reviewed the detection and determined it requires immediate customer attention or notification.\nOne incident is created per detection - grouping is based on alert display name so that\nrepeated rule evaluations against the same detection do not create duplicate incidents.\n\nThis query creates a Microsoft Sentinel incident when Vectra AI identifies an account entity with one or more detections\nmarked as unresolved and prioritized (unresolved_priority = true). Vectra's AI engine assigns\npriority based on attack rating, velocity, breadth, and identity privilege level. This rule surfaces\naccount-based threats that require analyst attention.\n\nIncidents are grouped per account entity and remain open while the threat persists. Once all associated\ndetections are resolved in Vectra, the incident can be closed in Microsoft Sentinel.\n",
        "displayName": "Vectra RUX - Create Incident for Escalated Account Detection or Unresolved Priority Account",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "entity_name",
                "identifier": "Name"
              },
              {
                "columnName": "entity_uid",
                "identifier": "UPNSuffix"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "groupByAlertDetails": [
              "DisplayName"
            ],
            "groupByEntities": [
              "Account"
            ],
            "lookbackDuration": "P7D",
            "matchingMethod": "Selected",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20XDR/Analytic%20Rules/Vectra_RUX_Incident_Detection_Account.yaml",
        "query": "VectraDetectionsCombined\n| where [\"Entity Type\"] == \"account\"\n| summarize arg_max(TimeGenerated, *) by [\"Detection ID\"]\n| where [\"Investigation Status\"] == \"escalated\" or [\"Unresolved Priority\"] == true\n| extend\n    detection_name     = [\"D Type Vname\"],\n    detection_category = [\"Detection Category\"],\n    entity_url         = replace_string(replace_string(URL, \"api/v3.4/\", \"\"), \"api/v3.5/\", \"\"),\n    mitre_techniques   = tostring(Mitre),\n    detection_tags     = tostring(Tags),\n    assigned_to        = [\"Assigned To\"],\n    entity_name = [\"Entity Name\"],\n    entity_uid = [\"Entity UID\"],\n    entity_id = [\"Entity ID\"],\n    detection_id = [\"Detection ID\"],\n    external_reference = [\"External Reference ID\"],\n    investigation_status = [\"Investigation Status\"],\n    entity_type = [\"Entity Type\"]\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "CredentialAccess",
          "Discovery",
          "Exfiltration",
          "LateralMovement",
          "Persistence"
        ],
        "techniques": [
          "T1003",
          "T1041",
          "T1071",
          "T1078",
          "T1110"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}