Illumio VEN Deactivated Detection Rule | Microsoft Sentinel Analytic Rules

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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 SyslogAma
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%20Rules/Illumio_VEN_Deactivated_Query.yaml
Version	1.0.6
Arm template	c18bd8c2-50f0-4aa2-8122-d449243627d7.json

KQL

Illumio_Auditable_Events_CL
| union IllumioSyslogAuditEvents  
| 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

name: Illumio VEN Deactivated Detection Rule
triggerOperator: gt
query: |
  Illumio_Auditable_Events_CL
  | union IllumioSyslogAuditEvents  
  | 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 
queryFrequency: 60m
description: |
  'Create Microsoft Sentinel Incident When Ven Goes Into Deactivated state'
id: c18bd8c2-50f0-4aa2-8122-d449243627d7
triggerThreshold: 0
queryPeriod: 60m
version: 1.0.6
kind: Scheduled
status: Available
eventGroupingSettings:
  aggregationKind: SingleAlert
severity: High
requiredDataConnectors:
- connectorId: IllumioSaaSDataConnector
  dataTypes:
  - Illumio_Auditable_Events_CL
- connectorId: SyslogAma
  datatypes:
  - Syslog
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic%20Rules/Illumio_VEN_Deactivated_Query.yaml
alertDetailsOverride:
  alertDescriptionFormat: |
    Illumio VEN Deactivated Incident generated at {{TimeGenerated}}
  alertDisplayNameFormat: |
    Illumio VEN Deactivated Incident
relevantTechniques:
- T1562
tactics:
- DefenseEvasion
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: hostname
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: ipaddress
  entityType: IP

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 generated at {{TimeGenerated}}\n",
          "alertDisplayNameFormat": "Illumio VEN Deactivated Incident\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%20Rules/Illumio_VEN_Deactivated_Query.yaml",
        "query": "Illumio_Auditable_Events_CL\n| union IllumioSyslogAuditEvents  \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": "1.0.6",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}