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Illumio VEN Offline Detection Rule

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Idec07fcd3-724f-426d-9f53-041801ca5f6c
RulenameIllumio VEN Offline Detection Rule
DescriptionCreate Microsoft Sentinel Incident When Ven Goes Into Offline state
SeverityHigh
TacticsDefenseEvasion
TechniquesT1562
Required data connectorsIllumioSaaSDataConnector
SyslogAma
KindScheduled
Query frequency60m
Query period60m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Offline_Detection_Query.yaml
Version1.0.7
Arm templateec07fcd3-724f-426d-9f53-041801ca5f6c.json
Deploy To Azure
Illumio_Auditable_Events_CL
| union IllumioSyslogAuditEvents    
| where event_type has 'agent_offline_check'
| 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']
| project-away resource_changes, version, notifications, action, severity, status // action field will have filtered ip addr, so no point of using IP entity
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Offline_Detection_Query.yaml
query: |
  Illumio_Auditable_Events_CL
  | union IllumioSyslogAuditEvents    
  | where event_type has 'agent_offline_check'
  | 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']
  | project-away resource_changes, version, notifications, action, severity, status // action field will have filtered ip addr, so no point of using IP entity  
description: |
    'Create Microsoft Sentinel Incident When Ven Goes Into Offline state'
severity: High
requiredDataConnectors:
- dataTypes:
  - Illumio_Auditable_Events_CL
  connectorId: IllumioSaaSDataConnector
- datatypes:
  - Syslog
  connectorId: SyslogAma
eventGroupingSettings:
  aggregationKind: SingleAlert
name: Illumio VEN Offline Detection Rule
triggerThreshold: 0
version: 1.0.7
tactics:
- DefenseEvasion
alertDetailsOverride:
  alertDescriptionFormat: |
        Illumio VEN Offline Incident for {{hostname}} generated at {{TimeGenerated}}
  alertDisplayNameFormat: |
        Illumio VEN Offline Incident for {{hostname}}
relevantTechniques:
- T1562
triggerOperator: gt
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: hostname
    identifier: HostName
id: ec07fcd3-724f-426d-9f53-041801ca5f6c
status: Available
kind: Scheduled
queryFrequency: 60m
queryPeriod: 60m
{
  "$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/ec07fcd3-724f-426d-9f53-041801ca5f6c')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/ec07fcd3-724f-426d-9f53-041801ca5f6c')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Illumio VEN Offline Incident for {{hostname}} generated at {{TimeGenerated}}\n",
          "alertDisplayNameFormat": "Illumio VEN Offline Incident for {{hostname}}\n"
        },
        "alertRuleTemplateName": "ec07fcd3-724f-426d-9f53-041801ca5f6c",
        "customDetails": null,
        "description": "'Create Microsoft Sentinel Incident When Ven Goes Into Offline state'\n",
        "displayName": "Illumio VEN Offline Detection Rule",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "hostname",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic Rules/Illumio_VEN_Offline_Detection_Query.yaml",
        "query": "Illumio_Auditable_Events_CL\n| union IllumioSyslogAuditEvents    \n| where event_type has 'agent_offline_check'\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| project-away resource_changes, version, notifications, action, severity, status // action field will have filtered ip addr, so no point of using IP entity\n",
        "queryFrequency": "PT60M",
        "queryPeriod": "PT60M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1562"
        ],
        "templateVersion": "1.0.7",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}