Microsoft Sentinel Analytic Rules
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Palo Alto Prisma Cloud - Network ACL allow all outbound traffic

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Id4264e133-eec2-438f-af85-05e869308f94
RulenamePalo Alto Prisma Cloud - Network ACL allow all outbound traffic
DescriptionDetects network ACLs with outbound rule to allow all traffic.
SeverityMedium
TacticsInitialAccess
TechniquesT1133
Required data connectorsPaloAltoPrismaCloud
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudAclAllowAllOut.yaml
Version1.0.1
Arm template4264e133-eec2-438f-af85-05e869308f94.json
Deploy To Azure
PaloAltoPrismaCloud
| where Reason =~ 'NEW_ALERT'
| where Status =~ 'open'
| where AlertMessage has 'Network ACLs with Outbound rule to allow All Traffic'
| extend AccountCustomEntity = UserName
relevantTechniques:
- T1133
queryPeriod: 1h
tactics:
- InitialAccess
requiredDataConnectors:
- dataTypes:
  - PaloAltoPrismaCloud
  connectorId: PaloAltoPrismaCloud
triggerThreshold: 0
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
  entityType: Account
name: Palo Alto Prisma Cloud - Network ACL allow all outbound traffic
status: Available
query: |
  PaloAltoPrismaCloud
  | where Reason =~ 'NEW_ALERT'
  | where Status =~ 'open'
  | where AlertMessage has 'Network ACLs with Outbound rule to allow All Traffic'
  | extend AccountCustomEntity = UserName  
queryFrequency: 1h
id: 4264e133-eec2-438f-af85-05e869308f94
severity: Medium
description: |
    'Detects network ACLs with outbound rule to allow all traffic.'
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudAclAllowAllOut.yaml
kind: Scheduled
triggerOperator: gt
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/4264e133-eec2-438f-af85-05e869308f94')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4264e133-eec2-438f-af85-05e869308f94')]",
      "properties": {
        "alertRuleTemplateName": "4264e133-eec2-438f-af85-05e869308f94",
        "customDetails": null,
        "description": "'Detects network ACLs with outbound rule to allow all traffic.'\n",
        "displayName": "Palo Alto Prisma Cloud - Network ACL allow all outbound traffic",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudAclAllowAllOut.yaml",
        "query": "PaloAltoPrismaCloud\n| where Reason =~ 'NEW_ALERT'\n| where Status =~ 'open'\n| where AlertMessage has 'Network ACLs with Outbound rule to allow All Traffic'\n| extend AccountCustomEntity = UserName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1133"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}