let ResolvedAlerts = PaloAltoPrismaCloud
| summarize result = make_set(Status) by AlertId
| where result has 'resolved'
| project AlertId;
PaloAltoPrismaCloud
| where Reason =~ 'NEW_ALERT'
| where AlertSeverity =~ 'high'
| where Status =~ 'open'
| where AlertId !in (ResolvedAlerts)
| extend alert_time = now() - TimeGenerated
| where alert_time > 1d
| extend ['Opened Days'] = strcat('Alert opened for ', strcat(toint(alert_time / 1d), ' days'))
| distinct AlertId, AlertMessage, AlertSeverity, ['Opened Days'], ResourceId, UserName
| extend AccountCustomEntity = UserName
status: Available
queryFrequency: 1d
description: |
'Detects high severity alert which is opened for several days.'
severity: Medium
version: 1.0.2
relevantTechniques:
- T1133
name: Palo Alto Prisma Cloud - High severity alert opened for several days
triggerThreshold: 0
kind: Scheduled
query: |
let ResolvedAlerts = PaloAltoPrismaCloud
| summarize result = make_set(Status) by AlertId
| where result has 'resolved'
| project AlertId;
PaloAltoPrismaCloud
| where Reason =~ 'NEW_ALERT'
| where AlertSeverity =~ 'high'
| where Status =~ 'open'
| where AlertId !in (ResolvedAlerts)
| extend alert_time = now() - TimeGenerated
| where alert_time > 1d
| extend ['Opened Days'] = strcat('Alert opened for ', strcat(toint(alert_time / 1d), ' days'))
| distinct AlertId, AlertMessage, AlertSeverity, ['Opened Days'], ResourceId, UserName
| extend AccountCustomEntity = UserName
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudHighSeverityAlertOpenedForXDays.yaml
requiredDataConnectors:
- connectorId: PaloAltoPrismaCloud
dataTypes:
- PaloAltoPrismaCloud
tactics:
- InitialAccess
id: c5bf680f-fa37-47c3-9f38-e839a9b99c05
queryPeriod: 14d
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: Name
entityType: Account
{
"$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/c5bf680f-fa37-47c3-9f38-e839a9b99c05')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c5bf680f-fa37-47c3-9f38-e839a9b99c05')]",
"properties": {
"alertRuleTemplateName": "c5bf680f-fa37-47c3-9f38-e839a9b99c05",
"customDetails": null,
"description": "'Detects high severity alert which is opened for several days.'\n",
"displayName": "Palo Alto Prisma Cloud - High severity alert opened for several days",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "Name"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoPrismaCloud/Analytic Rules/PaloAltoPrismaCloudHighSeverityAlertOpenedForXDays.yaml",
"query": "let ResolvedAlerts = PaloAltoPrismaCloud\n| summarize result = make_set(Status) by AlertId\n| where result has 'resolved'\n| project AlertId;\nPaloAltoPrismaCloud\n| where Reason =~ 'NEW_ALERT'\n| where AlertSeverity =~ 'high' \n| where Status =~ 'open'\n| where AlertId !in (ResolvedAlerts)\n| extend alert_time = now() - TimeGenerated\n| where alert_time > 1d\n| extend ['Opened Days'] = strcat('Alert opened for ', strcat(toint(alert_time / 1d), ' days'))\n| distinct AlertId, AlertMessage, AlertSeverity, ['Opened Days'], ResourceId, UserName\n| extend AccountCustomEntity = UserName\n",
"queryFrequency": "P1D",
"queryPeriod": "P14D",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1133"
],
"templateVersion": "1.0.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}