Conditional Access - A Conditional Access policy was deleted
Id | 2e96fa64-ac4d-4c92-b79e-e9c54b5d8230 |
Rulename | Conditional Access - A Conditional Access policy was deleted |
Description | A Conditional Access policy was deleted from Entra ID. |
Severity | Low |
Tactics | DefenseEvasion |
Techniques | T1562.007 |
Required data connectors | AzureActiveDirectory |
Kind | Scheduled |
Query frequency | 5m |
Query period | 5m |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access policy was deleted.yaml |
Version | 1.0.0 |
Arm template | 2e96fa64-ac4d-4c92-b79e-e9c54b5d8230.json |
// A Conditional Access policy was deleted.
AuditLogs
| where OperationName in ("Delete conditional access policy")
| extend modifiedBy = tostring(InitiatedBy.user.userPrincipalName)
| extend accountName = tostring(split(modifiedBy, "@")[0])
| extend upnSuffix = tostring(split(modifiedBy, "@")[1])
| project
TimeGenerated,
OperationName,
policy = TargetResources[0].displayName,
modifiedBy,
accountName,
upnSuffix,
result = Result,
oldPolicy = TargetResources[0].modifiedProperties[0].oldValue
| order by TimeGenerated desc
queryPeriod: 5m
eventGroupingSettings:
aggregationKind: AlertPerResult
name: Conditional Access - A Conditional Access policy was deleted
description: A Conditional Access policy was deleted from Entra ID.
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access policy was deleted.yaml
suppressionEnabled: false
requiredDataConnectors:
- dataTypes:
- AuditLogs
connectorId: AzureActiveDirectory
kind: Scheduled
id: 2e96fa64-ac4d-4c92-b79e-e9c54b5d8230
version: 1.0.0
triggerOperator: gt
triggerThreshold: 0
query: |
// A Conditional Access policy was deleted.
AuditLogs
| where OperationName in ("Delete conditional access policy")
| extend modifiedBy = tostring(InitiatedBy.user.userPrincipalName)
| extend accountName = tostring(split(modifiedBy, "@")[0])
| extend upnSuffix = tostring(split(modifiedBy, "@")[1])
| project
TimeGenerated,
OperationName,
policy = TargetResources[0].displayName,
modifiedBy,
accountName,
upnSuffix,
result = Result,
oldPolicy = TargetResources[0].modifiedProperties[0].oldValue
| order by TimeGenerated desc
suppressionDuration: 5h
incidentConfiguration:
groupingConfiguration:
lookbackDuration: 1h
enabled: false
matchingMethod: AllEntities
groupByCustomDetails: []
reopenClosedIncident: false
groupByAlertDetails: []
groupByEntities: []
createIncident: true
entityMappings:
- fieldMappings:
- identifier: Name
columnName: accountName
- identifier: UPNSuffix
columnName: upnSuffix
entityType: Account
tactics:
- DefenseEvasion
relevantTechniques:
- T1562.007
queryFrequency: 5m
severity: Low
{
"$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/2e96fa64-ac4d-4c92-b79e-e9c54b5d8230')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2e96fa64-ac4d-4c92-b79e-e9c54b5d8230')]",
"properties": {
"alertRuleTemplateName": "2e96fa64-ac4d-4c92-b79e-e9c54b5d8230",
"customDetails": null,
"description": "A Conditional Access policy was deleted from Entra ID.",
"displayName": "Conditional Access - A Conditional Access policy was deleted",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "accountName",
"identifier": "Name"
},
{
"columnName": "upnSuffix",
"identifier": "UPNSuffix"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": true,
"groupingConfiguration": {
"enabled": false,
"groupByAlertDetails": [],
"groupByCustomDetails": [],
"groupByEntities": [],
"lookbackDuration": "PT1H",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access policy was deleted.yaml",
"query": "// A Conditional Access policy was deleted.\nAuditLogs\n| where OperationName in (\"Delete conditional access policy\")\n| extend modifiedBy = tostring(InitiatedBy.user.userPrincipalName)\n| extend accountName = tostring(split(modifiedBy, \"@\")[0])\n| extend upnSuffix = tostring(split(modifiedBy, \"@\")[1])\n| project\n TimeGenerated,\n OperationName,\n policy = TargetResources[0].displayName,\n modifiedBy,\n accountName,\n upnSuffix,\n result = Result,\n oldPolicy = TargetResources[0].modifiedProperties[0].oldValue\n| order by TimeGenerated desc\n",
"queryFrequency": "PT5M",
"queryPeriod": "PT5M",
"severity": "Low",
"subTechniques": [
"T1562.007"
],
"suppressionDuration": "PT5H",
"suppressionEnabled": false,
"tactics": [
"DefenseEvasion"
],
"techniques": [
"T1562"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}