NRT PIM Elevation Request Rejected
| Id | 5db427b2-f406-4274-b413-e9fcb29412f8 |
| Rulename | NRT PIM Elevation Request Rejected |
| Description | Identifies when a user is rejected for a privileged role elevation via PIM. Monitor rejections for indicators of attacker compromise of the requesting account. Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-identity-management |
| Severity | High |
| Tactics | Persistence |
| Techniques | T1078.004 |
| Required data connectors | AzureActiveDirectory |
| Kind | NRT |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/NRT_PIMElevationRequestRejected.yaml |
| Version | 1.0.4 |
| Arm template | 5db427b2-f406-4274-b413-e9fcb29412f8.json |
AuditLogs
| where ActivityDisplayName =~ 'Add member to role request denied (PIM activation)'
| mv-apply ResourceItem = TargetResources on
(
where ResourceItem.type =~ "Role"
| extend Role = trim(@'"',tostring(ResourceItem.displayName))
)
| mv-apply ResourceItem = TargetResources on
(
where ResourceItem.type =~ "User"
| extend TargetUserPrincipalName = trim(@'"',tostring(ResourceItem.userPrincipalName))
)
| where ResultReason != "RoleAssignmentExists"
| where isnotempty(InitiatedBy.user)
| 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(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
| extend TargetName = tostring(split(TargetUserPrincipalName,'@',0)[0]), TargetUPNSuffix = tostring(split(TargetUserPrincipalName,'@',1)[0])
| extend InitiatedByName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatedByUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])
| project-reorder TimeGenerated, TargetUserPrincipalName, Role, OperationName, Result, ResultDescription
relevantTechniques:
- T1078.004
name: NRT PIM Elevation Request Rejected
requiredDataConnectors:
- dataTypes:
- AuditLogs
connectorId: AzureActiveDirectory
entityMappings:
- fieldMappings:
- identifier: FullName
columnName: TargetUserPrincipalName
- identifier: Name
columnName: TargetName
- identifier: UPNSuffix
columnName: TargetUPNSuffix
entityType: Account
- fieldMappings:
- identifier: FullName
columnName: InitiatingUserPrincipalName
- identifier: Name
columnName: InitiatedByName
- identifier: UPNSuffix
columnName: InitiatedByUPNSuffix
entityType: Account
- fieldMappings:
- identifier: AadUserId
columnName: InitiatingAadUserId
entityType: Account
- fieldMappings:
- identifier: AadUserId
columnName: InitiatingAppServicePrincipalId
entityType: Account
- fieldMappings:
- identifier: Address
columnName: InitiatingIpAddress
entityType: IP
query: |
AuditLogs
| where ActivityDisplayName =~ 'Add member to role request denied (PIM activation)'
| mv-apply ResourceItem = TargetResources on
(
where ResourceItem.type =~ "Role"
| extend Role = trim(@'"',tostring(ResourceItem.displayName))
)
| mv-apply ResourceItem = TargetResources on
(
where ResourceItem.type =~ "User"
| extend TargetUserPrincipalName = trim(@'"',tostring(ResourceItem.userPrincipalName))
)
| where ResultReason != "RoleAssignmentExists"
| where isnotempty(InitiatedBy.user)
| 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(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
| extend TargetName = tostring(split(TargetUserPrincipalName,'@',0)[0]), TargetUPNSuffix = tostring(split(TargetUserPrincipalName,'@',1)[0])
| extend InitiatedByName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatedByUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])
| project-reorder TimeGenerated, TargetUserPrincipalName, Role, OperationName, Result, ResultDescription
id: 5db427b2-f406-4274-b413-e9fcb29412f8
tactics:
- Persistence
version: 1.0.4
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/NRT_PIMElevationRequestRejected.yaml
kind: NRT
tags:
- AADSecOpsGuide
severity: High
status: Available
description: |
'Identifies when a user is rejected for a privileged role elevation via PIM. Monitor rejections for indicators of attacker compromise of the requesting account.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-identity-management'
{
"$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/5db427b2-f406-4274-b413-e9fcb29412f8')]",
"kind": "NRT",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5db427b2-f406-4274-b413-e9fcb29412f8')]",
"properties": {
"alertRuleTemplateName": "5db427b2-f406-4274-b413-e9fcb29412f8",
"customDetails": null,
"description": "'Identifies when a user is rejected for a privileged role elevation via PIM. Monitor rejections for indicators of attacker compromise of the requesting account.\nRef : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-identity-management'\n",
"displayName": "NRT PIM Elevation Request Rejected",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "TargetName",
"identifier": "Name"
},
{
"columnName": "TargetUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "InitiatedByName",
"identifier": "Name"
},
{
"columnName": "InitiatedByUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAadUserId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAppServicePrincipalId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "InitiatingIpAddress",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/NRT_PIMElevationRequestRejected.yaml",
"query": "AuditLogs\n| where ActivityDisplayName =~ 'Add member to role request denied (PIM activation)'\n| mv-apply ResourceItem = TargetResources on \n (\n where ResourceItem.type =~ \"Role\"\n | extend Role = trim(@'\"',tostring(ResourceItem.displayName))\n )\n| mv-apply ResourceItem = TargetResources on \n (\n where ResourceItem.type =~ \"User\"\n | extend TargetUserPrincipalName = trim(@'\"',tostring(ResourceItem.userPrincipalName))\n )\n| where ResultReason != \"RoleAssignmentExists\"\n| where isnotempty(InitiatedBy.user)\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(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))\n| extend TargetName = tostring(split(TargetUserPrincipalName,'@',0)[0]), TargetUPNSuffix = tostring(split(TargetUserPrincipalName,'@',1)[0])\n| extend InitiatedByName = tostring(split(InitiatingUserPrincipalName,'@',0)[0]), InitiatedByUPNSuffix = tostring(split(InitiatingUserPrincipalName,'@',1)[0])\n| project-reorder TimeGenerated, TargetUserPrincipalName, Role, OperationName, Result, ResultDescription\n",
"severity": "High",
"status": "Available",
"subTechniques": [
"T1078.004"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"tags": [
"AADSecOpsGuide"
],
"techniques": [
"T1078"
],
"templateVersion": "1.0.4"
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}