Changes to PIM Settings

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Id	0ed0fe7c-af29-4990-af7f-bb5ccb231198
Rulename	Changes to PIM Settings
Description	PIM provides a key mechanism for assigning privileges to accounts, this query detects changes to PIM role settings. Monitor these changes to ensure they are being made legitimately and don’t confer more privileges than expected or reduce the security of a PIM elevation. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#changes-to-privileged-accounts
Severity	High
Tactics	PrivilegeEscalation
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/Detections/AuditLogs/ChangestoPIMSettings.yaml
Version	1.1.1
Arm template	0ed0fe7c-af29-4990-af7f-bb5ccb231198.json

KQL

AuditLogs
  | where Category =~ "RoleManagement"
  | where OperationName =~ "Update role setting in PIM"
  | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
  | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
  | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
  | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
  | project-reorder TimeGenerated, OperationName, ResultReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, InitiatingAccountName, InitiatingAccountUPNSuffix

YAML

queryPeriod: 1d
description: |
  'PIM provides a key mechanism for assigning privileges to accounts, this query detects changes to PIM role settings.
    Monitor these changes to ensure they are being made legitimately and don't confer more privileges than expected or reduce the security of a PIM elevation.
    Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#changes-to-privileged-accounts'  
severity: High
triggerOperator: gt
metadata:
  categories:
    domains:
    - Security - Others
    - Identity
  support:
    tier: Community
  source:
    kind: Community
  author:
    name: Microsoft Security Research
triggerThreshold: 0
entityMappings:
- 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
query: |
  AuditLogs
    | where Category =~ "RoleManagement"
    | where OperationName =~ "Update role setting in PIM"
    | extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
    | extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
    | extend InitiatingIPAddress = tostring(InitiatedBy.user.ipAddress)
    | extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
    | project-reorder TimeGenerated, OperationName, ResultReason, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, InitiatingAccountName, InitiatingAccountUPNSuffix  
queryFrequency: 1d
tactics:
- PrivilegeEscalation
requiredDataConnectors:
- connectorId: AzureActiveDirectory
  dataTypes:
  - AuditLogs
name: Changes to PIM Settings
id: 0ed0fe7c-af29-4990-af7f-bb5ccb231198
version: 1.1.1
kind: Scheduled
tags:
- AADSecOpsGuide
relevantTechniques:
- T1078.004
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/AuditLogs/ChangestoPIMSettings.yaml

ARM