Account created or deleted by non-approved user
Id | 6d63efa6-7c25-4bd4-a486-aa6bf50fde8a |
Rulename | Account created or deleted by non-approved user |
Description | Identifies accounts that were created or deleted by a defined list of non-approved user principal names. Add to this list before running the query for accurate results. Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts |
Severity | Medium |
Tactics | InitialAccess |
Techniques | T1078.004 |
Required data connectors | AzureActiveDirectory |
Kind | Scheduled |
Query frequency | 1d |
Query period | 1d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AccountCreatedDeletedByNonApprovedUser.yaml |
Version | 1.1.1 |
Arm template | 6d63efa6-7c25-4bd4-a486-aa6bf50fde8a.json |
// Add non-approved user principal names or apps to the list below to search for their account creation/deletion activity
// ex: dynamic(["UPN1", "upn123"])
let nonapproved_users = dynamic([]);
let nonapproved_apps = dynamic([]);
AuditLogs
| where OperationName =~ "Add user" or OperationName =~ "Delete user"
| where Result =~ "success"
| 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))
| where InitiatingUserPrincipalName has_any (nonapproved_users) or InitiatingAppName has_any (nonapproved_apps)
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
queryFrequency: 1d
description: |
'Identifies accounts that were created or deleted by a defined list of non-approved user principal names. Add to this list before running the query for accurate results.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts'
name: Account created or deleted by non-approved user
relevantTechniques:
- T1078.004
triggerThreshold: 0
status: Available
id: 6d63efa6-7c25-4bd4-a486-aa6bf50fde8a
requiredDataConnectors:
- dataTypes:
- AuditLogs
connectorId: AzureActiveDirectory
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: InitiatingAppName
- identifier: AadUserId
columnName: InitiatingAppServicePrincipalId
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: InitiatingUserPrincipalName
- identifier: Name
columnName: InitiatingAccountName
- identifier: UPNSuffix
columnName: InitiatingAccountUPNSuffix
- entityType: Account
fieldMappings:
- identifier: AadUserId
columnName: InitiatingAadUserId
- entityType: IP
fieldMappings:
- identifier: Address
columnName: InitiatingIpAddress
queryPeriod: 1d
query: |
// Add non-approved user principal names or apps to the list below to search for their account creation/deletion activity
// ex: dynamic(["UPN1", "upn123"])
let nonapproved_users = dynamic([]);
let nonapproved_apps = dynamic([]);
AuditLogs
| where OperationName =~ "Add user" or OperationName =~ "Delete user"
| where Result =~ "success"
| 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))
| where InitiatingUserPrincipalName has_any (nonapproved_users) or InitiatingAppName has_any (nonapproved_apps)
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
kind: Scheduled
tags:
- AADSecOpsGuide
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AccountCreatedDeletedByNonApprovedUser.yaml
version: 1.1.1
triggerOperator: gt
tactics:
- InitialAccess
{
"$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/6d63efa6-7c25-4bd4-a486-aa6bf50fde8a')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/6d63efa6-7c25-4bd4-a486-aa6bf50fde8a')]",
"properties": {
"alertRuleTemplateName": "6d63efa6-7c25-4bd4-a486-aa6bf50fde8a",
"customDetails": null,
"description": "'Identifies accounts that were created or deleted by a defined list of non-approved user principal names. Add to this list before running the query for accurate results.\nRef : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts'\n",
"displayName": "Account created or deleted by non-approved user",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAppName",
"identifier": "Name"
},
{
"columnName": "InitiatingAppServicePrincipalId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "InitiatingAccountName",
"identifier": "Name"
},
{
"columnName": "InitiatingAccountUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAadUserId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "InitiatingIpAddress",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/AccountCreatedDeletedByNonApprovedUser.yaml",
"query": "// Add non-approved user principal names or apps to the list below to search for their account creation/deletion activity\n// ex: dynamic([\"UPN1\", \"upn123\"])\nlet nonapproved_users = dynamic([]);\nlet nonapproved_apps = dynamic([]);\nAuditLogs\n| where OperationName =~ \"Add user\" or OperationName =~ \"Delete user\"\n| where Result =~ \"success\"\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| where InitiatingUserPrincipalName has_any (nonapproved_users) or InitiatingAppName has_any (nonapproved_apps)\n| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, \"@\")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, \"@\")[1])\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"severity": "Medium",
"status": "Available",
"subTechniques": [
"T1078.004"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"tags": [
"AADSecOpsGuide"
],
"techniques": [
"T1078"
],
"templateVersion": "1.1.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}