Changes to Application Ownership
| Id | cc5780ce-3245-4bba-8bc1-e9048c2257ce |
| Rulename | Changes to Application Ownership |
| Description | Detects changes to the ownership of an appplicaiton. Monitor these changes to make sure that they were authorized. Ref: https://learn.microsoft.com/en-gb/entra/architecture/security-operations-applications#new-owner |
| Severity | Medium |
| Tactics | Persistence PrivilegeEscalation |
| Techniques | T1078.004 |
| Required data connectors | AzureActiveDirectory |
| Kind | Scheduled |
| Query frequency | 2h |
| Query period | 2h |
| Trigger threshold | 0 |
| Trigger operator | gt |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/ChangestoApplicationOwnership.yaml |
| Version | 1.1.2 |
| Arm template | cc5780ce-3245-4bba-8bc1-e9048c2257ce.json |
AuditLogs
| where Category =~ "ApplicationManagement"
| where OperationName =~ "Add owner to application"
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
| extend TargetUserPrincipalName = TargetResources[0].userPrincipalName
| extend TargetAadUserId = tostring(TargetResources[0].id)
| extend mod_props = TargetResources[0].modifiedProperties
| mv-expand mod_props
| where mod_props.displayName =~ "Application.DisplayName"
| extend TargetAppName = tostring(parse_json(tostring(mod_props.newValue)))
| extend AddedUser = TargetUserPrincipalName
| extend UpdatedBy = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
| extend TargetAccountName = tostring(split(TargetUserPrincipalName, "@")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, "@")[1])
| project-reorder TimeGenerated, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingAadUserId, InitiatingUserPrincipalName, InitiatingIPAddress, TargetAppName, AddedUser, UpdatedBy
kind: Scheduled
query: |
AuditLogs
| where Category =~ "ApplicationManagement"
| where OperationName =~ "Add owner to application"
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
| extend TargetUserPrincipalName = TargetResources[0].userPrincipalName
| extend TargetAadUserId = tostring(TargetResources[0].id)
| extend mod_props = TargetResources[0].modifiedProperties
| mv-expand mod_props
| where mod_props.displayName =~ "Application.DisplayName"
| extend TargetAppName = tostring(parse_json(tostring(mod_props.newValue)))
| extend AddedUser = TargetUserPrincipalName
| extend UpdatedBy = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
| extend TargetAccountName = tostring(split(TargetUserPrincipalName, "@")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, "@")[1])
| project-reorder TimeGenerated, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingAadUserId, InitiatingUserPrincipalName, InitiatingIPAddress, TargetAppName, AddedUser, UpdatedBy
relevantTechniques:
- T1078.004
entityMappings:
- entityType: Account
fieldMappings:
- columnName: InitiatingUserPrincipalName
identifier: FullName
- columnName: InitiatingAccountName
identifier: Name
- columnName: InitiatingAccountUPNSuffix
identifier: UPNSuffix
- entityType: Account
fieldMappings:
- columnName: InitiatingAadUserId
identifier: AadUserId
- entityType: Account
fieldMappings:
- columnName: TargetUserPrincipalName
identifier: FullName
- columnName: TargetAccountName
identifier: Name
- columnName: TargetAccountUPNSuffix
identifier: UPNSuffix
- entityType: Account
fieldMappings:
- columnName: TargetAadUserId
identifier: AadUserId
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 2h
tactics:
- Persistence
- PrivilegeEscalation
id: cc5780ce-3245-4bba-8bc1-e9048c2257ce
requiredDataConnectors:
- dataTypes:
- AuditLogs
connectorId: AzureActiveDirectory
tags:
- AADSecOpsGuide
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/ChangestoApplicationOwnership.yaml
description: |
'Detects changes to the ownership of an appplicaiton.
Monitor these changes to make sure that they were authorized.
Ref: https://learn.microsoft.com/en-gb/entra/architecture/security-operations-applications#new-owner'
queryFrequency: 2h
name: Changes to Application Ownership
severity: Medium
version: 1.1.2
metadata:
author:
name: Microsoft Security Research
support:
tier: Community
source:
kind: Community
categories:
domains:
- Security - Others
{
"$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/cc5780ce-3245-4bba-8bc1-e9048c2257ce')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/cc5780ce-3245-4bba-8bc1-e9048c2257ce')]",
"properties": {
"alertRuleTemplateName": "cc5780ce-3245-4bba-8bc1-e9048c2257ce",
"customDetails": null,
"description": "'Detects changes to the ownership of an appplicaiton.\n Monitor these changes to make sure that they were authorized.\n Ref: https://learn.microsoft.com/en-gb/entra/architecture/security-operations-applications#new-owner'\n",
"displayName": "Changes to Application Ownership",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "InitiatingAccountName",
"identifier": "Name"
},
{
"columnName": "InitiatingAccountUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAadUserId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "TargetAccountName",
"identifier": "Name"
},
{
"columnName": "TargetAccountUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetAadUserId",
"identifier": "AadUserId"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/ChangestoApplicationOwnership.yaml",
"query": "AuditLogs\n | where Category =~ \"ApplicationManagement\"\n | where OperationName =~ \"Add owner to application\"\n | extend InitiatingAppName = tostring(InitiatedBy.app.displayName)\n | extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)\n | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)\n | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)\n | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)\n | extend TargetUserPrincipalName = TargetResources[0].userPrincipalName\n | extend TargetAadUserId = tostring(TargetResources[0].id)\n | extend mod_props = TargetResources[0].modifiedProperties\n | mv-expand mod_props\n | where mod_props.displayName =~ \"Application.DisplayName\"\n | extend TargetAppName = tostring(parse_json(tostring(mod_props.newValue)))\n | extend AddedUser = TargetUserPrincipalName\n | extend UpdatedBy = iif(isnotempty(InitiatingAppName), InitiatingAppName, InitiatingUserPrincipalName)\n | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, \"@\")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, \"@\")[1])\n | extend TargetAccountName = tostring(split(TargetUserPrincipalName, \"@\")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, \"@\")[1])\n | project-reorder TimeGenerated, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingAadUserId, InitiatingUserPrincipalName, InitiatingIPAddress, TargetAppName, AddedUser, UpdatedBy\n",
"queryFrequency": "PT2H",
"queryPeriod": "PT2H",
"severity": "Medium",
"subTechniques": [
"T1078.004"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence",
"PrivilegeEscalation"
],
"tags": [
"AADSecOpsGuide"
],
"techniques": [
"T1078"
],
"templateVersion": "1.1.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}