Illumio Firewall Tampering Analytic Rule

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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 Rules/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

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

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 Rules/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"
    }
  ]
}