Dataverse - Export activity from terminated or notified employee

// Set a time period before employee terminatation date to search for export events
let termination_watch_period = 7d;
let query_frequency = 1h;
let exportEvents = dynamic(['ExportToExcel', 'ExportPdfDocument', 'ExportWordDocument', 'ExecutePowerBISql']);
MSBizAppsTerminatedEmployees
| where (UserState =~ "Terminated") or (UserState =~ "Notified" and TerminationDate <= startofday(now()) + termination_watch_period)
| join kind=inner (DataverseActivity
    | where TimeGenerated >= ago(query_frequency)
    | where Message in (exportEvents))
    on $left.UserPrincipalName == $right.UserId
| summarize
    FirstEvent = min(TimeGenerated),
    LastEvent = max(TimeGenerated),
    Event = make_set(Message, 4)
    by UserId, InstanceUrl, ClientIp, UserState
| extend
    CloudAppId = int(32780),
    AccountName = tostring(split(UserId, '@')[0]),
    UPNSuffix = tostring(split(UserId, '@')[1])
| project
    FirstEvent,
    LastEvent,
    UserId,
    ClientIp,
    UserState,
    InstanceUrl,
    CloudAppId,
    AccountName,
    UPNSuffix

queryFrequency: 1h
entityMappings:
- fieldMappings:
  - columnName: AccountName
    identifier: Name
  - columnName: UPNSuffix
    identifier: UPNSuffix
  entityType: Account
- fieldMappings:
  - columnName: ClientIp
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: CloudAppId
    identifier: AppId
  - columnName: InstanceUrl
    identifier: InstanceName
  entityType: CloudApplication
triggerThreshold: 0
triggerOperator: gt
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Business%20Applications/Analytic%20Rules/Dataverse%20-%20Export%20activity%20from%20terminated%20or%20notified%20employee.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: 'Dataverse - Export events detected from a terminated employee in {{InstanceUrl}} '
  alertDescriptionFormat: Export events where employee state found matching {{UserState}} found in {{InstanceUrl}}.
query: |
  // Set a time period before employee terminatation date to search for export events
  let termination_watch_period = 7d;
  let query_frequency = 1h;
  let exportEvents = dynamic(['ExportToExcel', 'ExportPdfDocument', 'ExportWordDocument', 'ExecutePowerBISql']);
  MSBizAppsTerminatedEmployees
  | where (UserState =~ "Terminated") or (UserState =~ "Notified" and TerminationDate <= startofday(now()) + termination_watch_period)
  | join kind=inner (DataverseActivity
      | where TimeGenerated >= ago(query_frequency)
      | where Message in (exportEvents))
      on $left.UserPrincipalName == $right.UserId
  | summarize
      FirstEvent = min(TimeGenerated),
      LastEvent = max(TimeGenerated),
      Event = make_set(Message, 4)
      by UserId, InstanceUrl, ClientIp, UserState
  | extend
      CloudAppId = int(32780),
      AccountName = tostring(split(UserId, '@')[0]),
      UPNSuffix = tostring(split(UserId, '@')[1])
  | project
      FirstEvent,
      LastEvent,
      UserId,
      ClientIp,
      UserState,
      InstanceUrl,
      CloudAppId,
      AccountName,
      UPNSuffix
tactics:
- Exfiltration
queryPeriod: 1d
relevantTechniques:
- T1567
- T1048
name: Dataverse - Export activity from terminated or notified employee
requiredDataConnectors:
- connectorId: Dataverse
  dataTypes:
  - DataverseActivity
id: 0881b209-62c9-4b15-9f9a-e0c1d1b1eb7b
version: 3.2.0
description: This query identifies Dataverse export activity triggered by terminated, or employees about to leave the organization. This analytics rule uses the TerminatedEmployees watchlist template.
kind: Scheduled
status: Available

{
  "$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/0881b209-62c9-4b15-9f9a-e0c1d1b1eb7b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/0881b209-62c9-4b15-9f9a-e0c1d1b1eb7b')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Export events where employee state found matching {{UserState}} found in {{InstanceUrl}}.",
          "alertDisplayNameFormat": "Dataverse - Export events detected from a terminated employee in {{InstanceUrl}} "
        },
        "alertRuleTemplateName": "0881b209-62c9-4b15-9f9a-e0c1d1b1eb7b",
        "customDetails": null,
        "description": "This query identifies Dataverse export activity triggered by terminated, or employees about to leave the organization. This analytics rule uses the TerminatedEmployees watchlist template.",
        "displayName": "Dataverse - Export activity from terminated or notified employee",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountName",
                "identifier": "Name"
              },
              {
                "columnName": "UPNSuffix",
                "identifier": "UPNSuffix"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "ClientIp",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "CloudAppId",
                "identifier": "AppId"
              },
              {
                "columnName": "InstanceUrl",
                "identifier": "InstanceName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft%20Business%20Applications/Analytic%20Rules/Dataverse%20-%20Export%20activity%20from%20terminated%20or%20notified%20employee.yaml",
        "query": "// Set a time period before employee terminatation date to search for export events\nlet termination_watch_period = 7d;\nlet query_frequency = 1h;\nlet exportEvents = dynamic(['ExportToExcel', 'ExportPdfDocument', 'ExportWordDocument', 'ExecutePowerBISql']);\nMSBizAppsTerminatedEmployees\n| where (UserState =~ \"Terminated\") or (UserState =~ \"Notified\" and TerminationDate <= startofday(now()) + termination_watch_period)\n| join kind=inner (DataverseActivity\n    | where TimeGenerated >= ago(query_frequency)\n    | where Message in (exportEvents))\n    on $left.UserPrincipalName == $right.UserId\n| summarize\n    FirstEvent = min(TimeGenerated),\n    LastEvent = max(TimeGenerated),\n    Event = make_set(Message, 4)\n    by UserId, InstanceUrl, ClientIp, UserState\n| extend\n    CloudAppId = int(32780),\n    AccountName = tostring(split(UserId, '@')[0]),\n    UPNSuffix = tostring(split(UserId, '@')[1])\n| project\n    FirstEvent,\n    LastEvent,\n    UserId,\n    ClientIp,\n    UserState,\n    InstanceUrl,\n    CloudAppId,\n    AccountName,\n    UPNSuffix\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "P1D",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Exfiltration"
        ],
        "techniques": [
          "T1048",
          "T1567"
        ],
        "templateVersion": "3.2.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}