User or Group Deleted

Veeam_GetSecurityEvents
| where instanceId == 31400
| project
    Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
    DataSource = original_host,
    EventId = instanceId,
    ["User Name"] = user,
  MessageDetails = Description,
   Severity = SeverityDescription

OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/User_or_Group_Deleted.yaml
triggerThreshold: 0
severity: High
queryFrequency: 5m
eventGroupingSettings:
  aggregationKind: AlertPerResult
customDetails:
  EventId: EventId
  Date: Date
  Severity: Severity
  MessageDetails: MessageDetails
  VbrHostName: DataSource
relevantTechniques:
- T1485
- T1098
triggerOperator: gt
id: d297961f-f8a3-4f84-865d-ec3a07641699
requiredDataConnectors:
- connectorId: Syslog
  dataTypes:
  - Syslog
- connectorId: SyslogAma
  dataTypes:
  - Syslog
version: 1.0.0
name: User or Group Deleted
tactics:
- Impact
- Persistence
description: Detects when a user or user group is deleted from Veeam Backup & Replication. This might indicate unauthorized removal of critical components.
query: |-
  Veeam_GetSecurityEvents
  | where instanceId == 31400
  | project
      Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),
      DataSource = original_host,
      EventId = instanceId,
      ["User Name"] = user,
    MessageDetails = Description,
     Severity = SeverityDescription  
status: Available
queryPeriod: 5m
kind: Scheduled

{
  "$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/d297961f-f8a3-4f84-865d-ec3a07641699')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/d297961f-f8a3-4f84-865d-ec3a07641699')]",
      "properties": {
        "alertRuleTemplateName": "d297961f-f8a3-4f84-865d-ec3a07641699",
        "customDetails": {
          "Date": "Date",
          "EventId": "EventId",
          "MessageDetails": "MessageDetails",
          "Severity": "Severity",
          "VbrHostName": "DataSource"
        },
        "description": "Detects when a user or user group is deleted from Veeam Backup & Replication. This might indicate unauthorized removal of critical components.",
        "displayName": "User or Group Deleted",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Veeam/Analytic Rules/User_or_Group_Deleted.yaml",
        "query": "Veeam_GetSecurityEvents\n| where instanceId == 31400\n| project\n    Date = format_datetime(TimeGenerated, 'dd.MM.yyyy HH:mm'),\n    DataSource = original_host,\n    EventId = instanceId,\n    [\"User Name\"] = user,\n  MessageDetails = Description,\n   Severity = SeverityDescription",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact",
          "Persistence"
        ],
        "techniques": [
          "T1098",
          "T1485"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}