Microsoft Sentinel Analytic Rules
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VMware ESXi - VM stopped

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Id43889f30-7bce-4d8a-93bb-29c9615ca8dd
RulenameVMware ESXi - VM stopped
DescriptionDetects when VM was stopped.
SeverityMedium
TacticsImpact
TechniquesT1529
Required data connectorsVMwareESXi
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiVMStopped.yaml
Version1.0.0
Arm template43889f30-7bce-4d8a-93bb-29c9615ca8dd.json
Deploy To Azure
VMwareESXi
| where SyslogMessage has ('VmPoweredOffEvent')
| extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| extend HostCustomEntity = DstHostname, AccountCustomEntity = SrcUsername
queryFrequency: 1h
tactics:
- Impact
queryPeriod: 1h
kind: Scheduled
relevantTechniques:
- T1529
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiVMStopped.yaml
description: |
    'Detects when VM was stopped.'
requiredDataConnectors:
- dataTypes:
  - VMwareESXi
  connectorId: VMwareESXi
version: 1.0.0
triggerThreshold: 0
severity: Medium
triggerOperator: gt
id: 43889f30-7bce-4d8a-93bb-29c9615ca8dd
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
status: Available
name: VMware ESXi - VM stopped
query: |
  VMwareESXi
  | where SyslogMessage has ('VmPoweredOffEvent')
  | extend SrcUsername = extract(@'\[info\]\s+\[(.*?)\]', 1, SyslogMessage)
  | extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
  | extend HostCustomEntity = DstHostname, AccountCustomEntity = SrcUsername  
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/43889f30-7bce-4d8a-93bb-29c9615ca8dd')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/43889f30-7bce-4d8a-93bb-29c9615ca8dd')]",
      "properties": {
        "alertRuleTemplateName": "43889f30-7bce-4d8a-93bb-29c9615ca8dd",
        "customDetails": null,
        "description": "'Detects when VM was stopped.'\n",
        "displayName": "VMware ESXi - VM stopped",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostCustomEntity",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/VMWareESXi/Analytic Rules/ESXiVMStopped.yaml",
        "query": "VMwareESXi\n| where SyslogMessage has ('VmPoweredOffEvent')\n| extend SrcUsername = extract(@'\\[info\\]\\s+\\[(.*?)\\]', 1, SyslogMessage)\n| extend DstHostname = extract(@'\\[\\d+\\]\\s+\\[(.*?)\\s+on', 1, SyslogMessage)\n| extend HostCustomEntity = DstHostname, AccountCustomEntity = SrcUsername\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "techniques": [
          "T1529"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}