Microsoft Sentinel Analytic Rules
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Palo Alto Prisma Cloud - High risk score alert

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Id617b02d8-0f47-4f3c-afed-1926a45e7b28
RulenamePalo Alto Prisma Cloud - High risk score alert
DescriptionDetects alerts with high risk score value.
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/PaloAltoPrismaCloudHighRiskScoreAlert.yaml
Version1.0.1
Arm template617b02d8-0f47-4f3c-afed-1926a45e7b28.json
Deploy To Azure
PaloAltoPrismaCloud
| where Reason =~ 'NEW_ALERT'
| where Status =~ 'open'
| extend r_score = 0.85 * toint(RiskDetailRiskScoreMaxScore)
| extend i_RiskDetailRiskScoreScore = toint(RiskDetailRiskScoreScore)
| where i_RiskDetailRiskScoreScore > r_score
| extend AccountCustomEntity = UserName
name: Palo Alto Prisma Cloud - High risk score alert
query: |
  PaloAltoPrismaCloud
  | where Reason =~ 'NEW_ALERT'
  | where Status =~ 'open'
  | extend r_score = 0.85 * toint(RiskDetailRiskScoreMaxScore)
  | extend i_RiskDetailRiskScoreScore = toint(RiskDetailRiskScoreScore)
  | where i_RiskDetailRiskScoreScore > r_score
  | extend AccountCustomEntity = UserName  
description: |
    'Detects alerts with high risk score value.'
tactics:
- InitialAccess
requiredDataConnectors:
- dataTypes:
  - PaloAltoPrismaCloud
  connectorId: PaloAltoPrismaCloud
queryPeriod: 1h
queryFrequency: 1h
status: Available
triggerThreshold: 0
id: 617b02d8-0f47-4f3c-afed-1926a45e7b28
triggerOperator: gt
version: 1.0.1
relevantTechniques:
- T1133
severity: Medium
kind: Scheduled
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudHighRiskScoreAlert.yaml
{
  "$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/617b02d8-0f47-4f3c-afed-1926a45e7b28')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/617b02d8-0f47-4f3c-afed-1926a45e7b28')]",
      "properties": {
        "alertRuleTemplateName": "617b02d8-0f47-4f3c-afed-1926a45e7b28",
        "customDetails": null,
        "description": "'Detects alerts with high risk score value.'\n",
        "displayName": "Palo Alto Prisma Cloud - High risk score alert",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudHighRiskScoreAlert.yaml",
        "query": "PaloAltoPrismaCloud\n| where Reason =~ 'NEW_ALERT'\n| where Status =~ 'open'\n| extend r_score = 0.85 * toint(RiskDetailRiskScoreMaxScore)\n| extend i_RiskDetailRiskScoreScore = toint(RiskDetailRiskScoreScore)\n| where i_RiskDetailRiskScoreScore > r_score\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"
    }
  ]
}