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Palo Alto Prevention alert

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Id5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb
RulenamePalo Alto Prevention alert
DescriptionThe query checks for all malicious events prevented events across all devices having LogSeverity of ‘6’ and summarize the result.
SeverityMedium
TacticsDefenseEvasion
TechniquesT1562
Required data connectorsPaloAltoNetworksCortex
KindScheduled
Query frequency1d
Query period1d
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo Alto - XDR (Cortex)/Detection Queries/Preventive Alerts.yaml
Version1.0.0
Arm template5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb.json
Deploy To Azure
CommonSecurityLog
| where DeviceVendor == "Palo Alto Networks"
| where DeviceProduct == "Cortex XDR"
| where DeviceAction == "Prevented (Blocked)"
| where LogSeverity =~ "6"
| summarize by TimeGenerated,DeviceProduct, DeviceEventClassID, LogSeverity, Activity, DeviceAction, Computer, DeviceVersion, FileHash, FileName, FilePath, RequestURL, SourceHostName, SourceUserName
| sort by TimeGenerated
relevantTechniques:
- T1562
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo Alto - XDR (Cortex)/Detection Queries/Preventive Alerts.yaml
triggerOperator: gt
kind: Scheduled
entityMappings:
- fieldMappings:
  - columnName: SourceUserName
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: SourceHostName
    identifier: FullName
  entityType: Host
- fieldMappings:
  - columnName: FileHash
    identifier: Value
  entityType: File hash
- fieldMappings:
  - columnName: FileName
    identifier: Name
  entityType: File
- fieldMappings:
  - columnName: FilePath
    identifier: Name
  entityType: File
- fieldMappings:
  - columnName: RequestURL
    identifier: Url
  entityType: URL
requiredDataConnectors:
- dataTypes:
  - PaloAltoNetworksCortex
  connectorId: PaloAltoNetworksCortex
queryPeriod: 1d
name: Palo Alto Prevention alert
query: |
  CommonSecurityLog
  | where DeviceVendor == "Palo Alto Networks"
  | where DeviceProduct == "Cortex XDR"
  | where DeviceAction == "Prevented (Blocked)"
  | where LogSeverity =~ "6"
  | summarize by TimeGenerated,DeviceProduct, DeviceEventClassID, LogSeverity, Activity, DeviceAction, Computer, DeviceVersion, FileHash, FileName, FilePath, RequestURL, SourceHostName, SourceUserName
  | sort by TimeGenerated  
tactics:
- DefenseEvasion
severity: Medium
triggerThreshold: 0
description: |
    'The query checks for all malicious events prevented events across all devices having LogSeverity of '6' and summarize the result.'
queryFrequency: 1d
version: 1.0.0
id: 5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb
{
  "$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/5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb')]",
      "properties": {
        "alertRuleTemplateName": "5180e347-32fb-4a0a-9cfa-d6e0e10fc4eb",
        "customDetails": null,
        "description": "'The query checks for all malicious events prevented events across all devices having LogSeverity of '6' and summarize the result.'\n",
        "displayName": "Palo Alto Prevention alert",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "SourceUserName",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "SourceHostName",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "File hash",
            "fieldMappings": [
              {
                "columnName": "FileHash",
                "identifier": "Value"
              }
            ]
          },
          {
            "entityType": "File",
            "fieldMappings": [
              {
                "columnName": "FileName",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "File",
            "fieldMappings": [
              {
                "columnName": "FilePath",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "RequestURL",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Palo Alto - XDR (Cortex)/Detection Queries/Preventive Alerts.yaml",
        "query": "CommonSecurityLog\n| where DeviceVendor == \"Palo Alto Networks\"\n| where DeviceProduct == \"Cortex XDR\"\n| where DeviceAction == \"Prevented (Blocked)\"\n| where LogSeverity =~ \"6\"\n| summarize by TimeGenerated,DeviceProduct, DeviceEventClassID, LogSeverity, Activity, DeviceAction, Computer, DeviceVersion, FileHash, FileName, FilePath, RequestURL, SourceHostName, SourceUserName\n| sort by TimeGenerated\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "Medium",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1562"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}