Vectra AI Detect - New Campaign Detected

CommonSecurityLog
| where DeviceVendor == "Vectra Networks"
| where DeviceProduct == "X Series"
| where DeviceEventClassID contains "campaign"
| where DeviceAction == "START"
| extend reason = coalesce(
                          column_ifexists("Reason", ""), 
                          extract("reason=(.+?)($|;)", 1, AdditionalExtensions),
                          ""
                      )
| project-rename vectra_URL = DeviceCustomString4
| sort by TimeGenerated

severity: Medium
kind: Scheduled
relevantTechniques:
- T1021
- T1071
version: 1.2.3
triggerThreshold: 0
tactics:
- LateralMovement
- CommandAndControl
query: |
  CommonSecurityLog
  | where DeviceVendor == "Vectra Networks"
  | where DeviceProduct == "X Series"
  | where DeviceEventClassID contains "campaign"
  | where DeviceAction == "START"
  | extend reason = coalesce(
                            column_ifexists("Reason", ""), 
                            extract("reason=(.+?)($|;)", 1, AdditionalExtensions),
                            ""
                        )
  | project-rename vectra_URL = DeviceCustomString4
  | sort by TimeGenerated
customDetails:
  CampaignSourceHost: SourceHostName
  CampaignName: Activity
  CampaignReason: reason
name: Vectra AI Detect - New Campaign Detected
alertDetailsOverride:
  alertDescriptionFormat: |
    A new campaign named {{Activity}} has been detected (reason is {{reason}})
  alertDynamicProperties:
  - value: vectra_URL
    alertProperty: AlertLink
  - value: DeviceProduct
    alertProperty: ProductName
  - value: DeviceVendor
    alertProperty: ProviderName
  alertDisplayNameFormat: Vectra AI - New Campaign Detected
entityMappings:
- entityType: DNS
  fieldMappings:
  - identifier: DomainName
    columnName: Activity
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
  - CommonSecurityLog
  connectorId: CefAma
incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AllEntities
    lookbackDuration: 7d
    enabled: true
    reopenClosedIncident: true
  createIncident: true
queryFrequency: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20AI%20Detect/Analytic%20Rules/VectraDetect-NewCampaign.yaml
status: Available
queryPeriod: 5m
id: a34d0338-eda0-42b5-8b93-32aae0d7a501
description: |
  'Identifies when a new Campaign has been detected.  This occurs when multiple Detections accross different Hosts are suspected to be part of the same Attack Campaign.'

{
  "$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/a34d0338-eda0-42b5-8b93-32aae0d7a501')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/a34d0338-eda0-42b5-8b93-32aae0d7a501')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "A new campaign named {{Activity}} has been detected (reason is {{reason}})\n",
          "alertDisplayNameFormat": "Vectra AI - New Campaign Detected",
          "alertDynamicProperties": [
            {
              "alertProperty": "AlertLink",
              "value": "vectra_URL"
            },
            {
              "alertProperty": "ProductName",
              "value": "DeviceProduct"
            },
            {
              "alertProperty": "ProviderName",
              "value": "DeviceVendor"
            }
          ]
        },
        "alertRuleTemplateName": "a34d0338-eda0-42b5-8b93-32aae0d7a501",
        "customDetails": {
          "CampaignName": "Activity",
          "CampaignReason": "reason",
          "CampaignSourceHost": "SourceHostName"
        },
        "description": "'Identifies when a new Campaign has been detected.  This occurs when multiple Detections accross different Hosts are suspected to be part of the same Attack Campaign.'\n",
        "displayName": "Vectra AI Detect - New Campaign Detected",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "Activity",
                "identifier": "DomainName"
              }
            ]
          }
        ],
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": true,
            "lookbackDuration": "P7D",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": true
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Vectra%20AI%20Detect/Analytic%20Rules/VectraDetect-NewCampaign.yaml",
        "query": "CommonSecurityLog\n| where DeviceVendor == \"Vectra Networks\"\n| where DeviceProduct == \"X Series\"\n| where DeviceEventClassID contains \"campaign\"\n| where DeviceAction == \"START\"\n| extend reason = coalesce(\n                          column_ifexists(\"Reason\", \"\"), \n                          extract(\"reason=(.+?)($|;)\", 1, AdditionalExtensions),\n                          \"\"\n                      )\n| project-rename vectra_URL = DeviceCustomString4\n| sort by TimeGenerated\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "LateralMovement"
        ],
        "techniques": [
          "T1021",
          "T1071"
        ],
        "templateVersion": "1.2.3",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}