Illumio Firewall Tampering Analytic Rule | Microsoft Sentinel Analytic Rules

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Id	e9e4e466-3970-4165-bc8d-7721c6ef34a6
Rulename	Illumio Firewall Tampering Analytic Rule
Description	Create Microsoft Sentinel Incident When Firewall Is Tampered With
Severity	Medium
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_Firewall_Tampering_Detection_Query.yaml
Version	1.0.7
Arm template	e9e4e466-3970-4165-bc8d-7721c6ef34a6.json

KQL

Illumio_Auditable_Events_CL
 | union IllumioSyslogAuditEvents 
 | where event_type has 'tampering'
 | extend ipaddress = action.src_ip,
           hostname = created_by.agent.hostname,
           ven_href = created_by.ven.href
 | project-away resource_changes, action, version

YAML

eventGroupingSettings:
  aggregationKind: SingleAlert
relevantTechniques:
- T1562
queryFrequency: 60m
status: Available
query: |
  Illumio_Auditable_Events_CL
   | union IllumioSyslogAuditEvents 
   | where event_type has 'tampering'
   | extend ipaddress = action.src_ip,
             hostname = created_by.agent.hostname,
             ven_href = created_by.ven.href
   | project-away resource_changes, action, version
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: hostname
    identifier: HostName
- entityType: IP
  fieldMappings:
  - columnName: ipaddress
    identifier: Address
name: Illumio Firewall Tampering Analytic Rule
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/IllumioSaaS/Analytic%20Rules/Illumio_VEN_Firewall_Tampering_Detection_Query.yaml
description: |
  'Create Microsoft Sentinel Incident When Firewall Is Tampered With'
kind: Scheduled
tactics:
- DefenseEvasion
id: e9e4e466-3970-4165-bc8d-7721c6ef34a6
version: 1.0.7
requiredDataConnectors:
- dataTypes:
  - Illumio_Auditable_Events_CL
  connectorId: IllumioSaaSDataConnector
- datatypes:
  - Syslog
  connectorId: SyslogAma
severity: Medium
queryPeriod: 60m
alertDetailsOverride:
  alertDescriptionFormat: |
    Illumio Firewall Tamper Incident for {{hostname}} generated at {{TimeGenerated}}
  alertDisplayNameFormat: |
    Illumio Firewall Tamper Incident for {{hostname}}
triggerThreshold: 0

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/e9e4e466-3970-4165-bc8d-7721c6ef34a6')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/e9e4e466-3970-4165-bc8d-7721c6ef34a6')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Illumio Firewall Tamper Incident for {{hostname}} generated at {{TimeGenerated}}\n",
          "alertDisplayNameFormat": "Illumio Firewall Tamper Incident for {{hostname}}\n"
        },
        "alertRuleTemplateName": "e9e4e466-3970-4165-bc8d-7721c6ef34a6",
        "customDetails": null,
        "description": "'Create Microsoft Sentinel Incident When Firewall Is Tampered With'\n",
        "displayName": "Illumio Firewall Tampering Analytic 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_Firewall_Tampering_Detection_Query.yaml",
        "query": "Illumio_Auditable_Events_CL\n | union IllumioSyslogAuditEvents \n | where event_type has 'tampering'\n | extend ipaddress = action.src_ip,\n           hostname = created_by.agent.hostname,\n           ven_href = created_by.ven.href\n | project-away resource_changes, action, version\n",
        "queryFrequency": "PT60M",
        "queryPeriod": "PT60M",
        "severity": "Medium",
        "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"
    }
  ]
}