Microsoft Sentinel Analytic Rules
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Zero Networks Segement - Machine Removed from protection

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Ida4ce12ca-d01d-460a-b15e-6c74ef328b82
RulenameZero Networks Segement - Machine Removed from protection
DescriptionDetects when a machine is removed from protection.
SeverityHigh
TacticsDefenseEvasion
TechniquesT1562
Required data connectorsZeroNetworksSegmentAuditFunction
ZeroNetworksSegmentAuditNativePoller
KindScheduled
Query frequency5m
Query period5m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ZeroNetworks/Analytic Rules/ZNSegmentMachineRemovedfromProtection.yaml
Version1.0.1
Arm templatea4ce12ca-d01d-460a-b15e-6c74ef328b82.json
Deploy To Azure
ZNSegmentAudit
| where AuditTypeId == 4
queryPeriod: 5m
version: 1.0.1
kind: Scheduled
triggerThreshold: 0
relevantTechniques:
- T1562
triggerOperator: gt
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: PerformedByName
  entityType: Account
- fieldMappings:
  - identifier: HostName
    columnName: DestinationEntityName
  entityType: Host
query: |
  ZNSegmentAudit
  | where AuditTypeId == 4  
name: Zero Networks Segement - Machine Removed from protection
queryFrequency: 5m
requiredDataConnectors:
- connectorId: ZeroNetworksSegmentAuditFunction
  dataTypes:
  - ZNSegmentAudit_CL
- connectorId: ZeroNetworksSegmentAuditNativePoller
  dataTypes:
  - ZNSegmentAuditNativePoller_CL
description: |
    'Detects when a machine is removed from protection.'
status: Available
id: a4ce12ca-d01d-460a-b15e-6c74ef328b82
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ZeroNetworks/Analytic Rules/ZNSegmentMachineRemovedfromProtection.yaml
tactics:
- DefenseEvasion
severity: High
{
  "$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/a4ce12ca-d01d-460a-b15e-6c74ef328b82')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/a4ce12ca-d01d-460a-b15e-6c74ef328b82')]",
      "properties": {
        "alertRuleTemplateName": "a4ce12ca-d01d-460a-b15e-6c74ef328b82",
        "customDetails": null,
        "description": "'Detects when a machine is removed from protection.'\n",
        "displayName": "Zero Networks Segement - Machine Removed from protection",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "PerformedByName",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DestinationEntityName",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ZeroNetworks/Analytic Rules/ZNSegmentMachineRemovedfromProtection.yaml",
        "query": "ZNSegmentAudit\n| where AuditTypeId == 4\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1562"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}