Illumio VEN Deactivated Detection Rule

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Id	c18bd8c2-50f0-4aa2-8122-d449243627d7
Rulename	Illumio VEN Deactivated Detection Rule
Description	Create Microsoft Sentinel Incident When Ven Goes Into Deactivated state
Severity	High
Tactics	DefenseEvasion
Techniques	T1562
Required data connectors	IllumioSaaSDataConnector
Kind	Scheduled
Query frequency	60m
Query period	60m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Deactivated_Query.yaml
Version	1.0.5
Arm template	c18bd8c2-50f0-4aa2-8122-d449243627d7.json

KQL

Illumio_Auditable_Events_CL
| where event_type has 'agent.deactivate'
| mv-expand resource_changes
| extend hostname = resource_changes['resource']['workload']['hostname'],
    workload_href = resource_changes['resource']['workload']['href'],
    workload_labels = resource_changes['resource']['workload']['labels']
| extend ipaddress = action.src_ip,       
      ven_href = created_by.ven.href
| project-away resource_changes, action, version

YAML

query: |
  Illumio_Auditable_Events_CL
  | where event_type has 'agent.deactivate'
  | mv-expand resource_changes
  | extend hostname = resource_changes['resource']['workload']['hostname'],
      workload_href = resource_changes['resource']['workload']['href'],
      workload_labels = resource_changes['resource']['workload']['labels']
  | extend ipaddress = action.src_ip,       
        ven_href = created_by.ven.href
  | project-away resource_changes, action, version   
relevantTechniques:
- T1562
name: Illumio VEN Deactivated Detection Rule
severity: High
triggerThreshold: 0
description: |
    'Create Microsoft Sentinel Incident When Ven Goes Into Deactivated state'
status: Available
triggerOperator: gt
tactics:
- DefenseEvasion
entityMappings:
- fieldMappings:
  - columnName: hostname
    identifier: HostName
  entityType: Host
- fieldMappings:
  - columnName: ipaddress
    identifier: Address
  entityType: IP
requiredDataConnectors:
- connectorId: IllumioSaaSDataConnector
  dataTypes:
  - Illumio_Auditable_Events_CL
eventGroupingSettings:
  aggregationKind: SingleAlert
alertDetailsOverride:
  alertDescriptionFormat: |
        Illumio VEN Deactivated Incident for {{hostname}} generated at {{TimeGenerated}}
  alertDisplayNameFormat: |
        Illumio VEN Deactivated Incident for {{hostname}}
id: c18bd8c2-50f0-4aa2-8122-d449243627d7
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Deactivated_Query.yaml
queryPeriod: 60m
queryFrequency: 60m
version: 1.0.5
kind: Scheduled

ARM

{
  "$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/c18bd8c2-50f0-4aa2-8122-d449243627d7')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c18bd8c2-50f0-4aa2-8122-d449243627d7')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Illumio VEN Deactivated Incident for {{hostname}} generated at {{TimeGenerated}}\n",
          "alertDisplayNameFormat": "Illumio VEN Deactivated Incident for {{hostname}}\n"
        },
        "alertRuleTemplateName": "c18bd8c2-50f0-4aa2-8122-d449243627d7",
        "customDetails": null,
        "description": "'Create Microsoft Sentinel Incident When Ven Goes Into Deactivated state'\n",
        "displayName": "Illumio VEN Deactivated Detection Rule",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "hostname",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "ipaddress",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Deactivated_Query.yaml",
        "query": "Illumio_Auditable_Events_CL\n| where event_type has 'agent.deactivate'\n| mv-expand resource_changes\n| extend hostname = resource_changes['resource']['workload']['hostname'],\n    workload_href = resource_changes['resource']['workload']['href'],\n    workload_labels = resource_changes['resource']['workload']['labels']\n| extend ipaddress = action.src_ip,       \n      ven_href = created_by.ven.href\n| project-away resource_changes, action, version \n",
        "queryFrequency": "PT60M",
        "queryPeriod": "PT60M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1562"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}