Conditional Access - A Conditional Access usergrouprole exclusion has changed
Id | 2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e |
Rulename | Conditional Access - A Conditional Access user/group/role exclusion has changed |
Description | A Conditional Access user/group/role exclusion has changed in Azure AD. |
Severity | High |
Tactics | Persistence DefenseEvasion CredentialAccess |
Techniques | T1098 T1078 |
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 usergrouprole exclusion has changed.yaml |
Version | 1.0.0 |
Arm template | 2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e.json |
// A Conditional Access user/group/role exclusion has changed.
AuditLogs
| where OperationName in ("Update conditional access policy")
| extend excludeUsersOld = extractjson("$.conditions.users.excludeUsers", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeGroupsOld = extractjson("$.conditions.users.excludeGroups", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeRolesOld = extractjson("$.conditions.users.excludeRoles", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeUsersNew = extractjson("$.conditions.users.excludeUsers", tostring(TargetResources[0].modifiedProperties[0].newValue))
| extend excludeGroupsNew = extractjson("$.conditions.users.excludeGroups", tostring(TargetResources[0].modifiedProperties[0].newValue))
| extend excludeRolesNew = extractjson("$.conditions.users.excludeRoles", tostring(TargetResources[0].modifiedProperties[0].newValue))
| where excludeUsersOld != excludeUsersNew or excludeGroupsOld != excludeGroupsNew or excludeRolesOld != excludeRolesNew
| 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,
excludeUsersOld, excludeUsersNew, excludeGroupsOld, excludeGroupsNew, excludeRolesOld, excludeRolesNew
| order by TimeGenerated desc
query: |
// A Conditional Access user/group/role exclusion has changed.
AuditLogs
| where OperationName in ("Update conditional access policy")
| extend excludeUsersOld = extractjson("$.conditions.users.excludeUsers", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeGroupsOld = extractjson("$.conditions.users.excludeGroups", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeRolesOld = extractjson("$.conditions.users.excludeRoles", tostring(TargetResources[0].modifiedProperties[0].oldValue))
| extend excludeUsersNew = extractjson("$.conditions.users.excludeUsers", tostring(TargetResources[0].modifiedProperties[0].newValue))
| extend excludeGroupsNew = extractjson("$.conditions.users.excludeGroups", tostring(TargetResources[0].modifiedProperties[0].newValue))
| extend excludeRolesNew = extractjson("$.conditions.users.excludeRoles", tostring(TargetResources[0].modifiedProperties[0].newValue))
| where excludeUsersOld != excludeUsersNew or excludeGroupsOld != excludeGroupsNew or excludeRolesOld != excludeRolesNew
| 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,
excludeUsersOld, excludeUsersNew, excludeGroupsOld, excludeGroupsNew, excludeRolesOld, excludeRolesNew
| order by TimeGenerated desc
triggerThreshold: 0
suppressionEnabled: false
entityMappings:
- fieldMappings:
- identifier: Name
columnName: accountName
- identifier: UPNSuffix
columnName: upnSuffix
entityType: Account
incidentConfiguration:
groupingConfiguration:
groupByAlertDetails: []
matchingMethod: AllEntities
enabled: false
groupByEntities: []
reopenClosedIncident: false
lookbackDuration: 1h
groupByCustomDetails: []
createIncident: true
triggerOperator: gt
tactics:
- Persistence
- DefenseEvasion
- CredentialAccess
relevantTechniques:
- T1098
- T1078
suppressionDuration: 5h
kind: Scheduled
queryFrequency: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access usergrouprole exclusion has changed.yaml
severity: High
queryPeriod: 5m
id: 2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e
version: 1.0.0
eventGroupingSettings:
aggregationKind: AlertPerResult
requiredDataConnectors:
- connectorId: AzureActiveDirectory
dataTypes:
- AuditLogs
name: Conditional Access - A Conditional Access user/group/role exclusion has changed
description: A Conditional Access user/group/role exclusion has changed in Azure AD.
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e')]",
"properties": {
"alertRuleTemplateName": "2ce7f00d-3b3c-41b9-ae9a-b79c19d2394e",
"customDetails": null,
"description": "A Conditional Access user/group/role exclusion has changed in Azure AD.",
"displayName": "Conditional Access - A Conditional Access user/group/role exclusion has changed",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "accountName",
"identifier": "Name"
},
{
"columnName": "upnSuffix",
"identifier": "UPNSuffix"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"incidentConfiguration": {
"createIncident": true,
"groupingConfiguration": {
"enabled": false,
"groupByAlertDetails": [],
"groupByCustomDetails": [],
"groupByEntities": [],
"lookbackDuration": "PT1H",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
}
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access usergrouprole exclusion has changed.yaml",
"query": "// A Conditional Access user/group/role exclusion has changed.\nAuditLogs\n| where OperationName in (\"Update conditional access policy\")\n| extend excludeUsersOld = extractjson(\"$.conditions.users.excludeUsers\", tostring(TargetResources[0].modifiedProperties[0].oldValue))\n| extend excludeGroupsOld = extractjson(\"$.conditions.users.excludeGroups\", tostring(TargetResources[0].modifiedProperties[0].oldValue))\n| extend excludeRolesOld = extractjson(\"$.conditions.users.excludeRoles\", tostring(TargetResources[0].modifiedProperties[0].oldValue))\n| extend excludeUsersNew = extractjson(\"$.conditions.users.excludeUsers\", tostring(TargetResources[0].modifiedProperties[0].newValue))\n| extend excludeGroupsNew = extractjson(\"$.conditions.users.excludeGroups\", tostring(TargetResources[0].modifiedProperties[0].newValue))\n| extend excludeRolesNew = extractjson(\"$.conditions.users.excludeRoles\", tostring(TargetResources[0].modifiedProperties[0].newValue))\n| where excludeUsersOld != excludeUsersNew or excludeGroupsOld != excludeGroupsNew or excludeRolesOld != excludeRolesNew\n| extend modifiedBy = tostring(InitiatedBy.user.userPrincipalName)\n| extend accountName = tostring(split(modifiedBy, \"@\")[0])\n| extend upnSuffix = tostring(split(modifiedBy, \"@\")[1])\n| project TimeGenerated, OperationName, policy = TargetResources[0].displayName, modifiedBy, accountName, upnSuffix, result = Result,\n excludeUsersOld, excludeUsersNew, excludeGroupsOld, excludeGroupsNew, excludeRolesOld, excludeRolesNew\n| order by TimeGenerated desc\n",
"queryFrequency": "PT5M",
"queryPeriod": "PT5M",
"severity": "High",
"subTechniques": [],
"suppressionDuration": "PT5H",
"suppressionEnabled": false,
"tactics": [
"CredentialAccess",
"DefenseEvasion",
"Persistence"
],
"techniques": [
"T1078",
"T1098"
],
"templateVersion": "1.0.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}