PasswordResetOnHighPrivilegedUser.yaml

id: c6c052b7-29a8-41d6-89f0-ed1e8ddebb53
name: "Password reset on high privileged user "
version: 1.0.0
kind: Scheduled
description: |-
  The password of a user that is member of a high privileged role was reset.

  Make sure that this action was intended
severity: Medium
queryFrequency: 3h
queryPeriod: 3h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - PrivilegeEscalation
query: |-
  let HighPrivRoles = dynamic(["Global Administrator", "Company Administrator", "Privileged Authentication Administrator", "Privileged Role Administrator"]);
  AuditLogs
  | where OperationName == "Reset user password"
  | mv-expand TargetResources
  | extend TargetUsername = tostring(TargetResources.userPrincipalName)
  | join kind=innerunique (
      IdentityInfo 
      | where TimeGenerated > ago(14d)
      )
      on $left.TargetUsername == $right.AccountUPN
  | mv-expand AssignedRoles
  | extend AssignedRoles = tostring(AssignedRoles)
  | where AssignedRoles in (HighPrivRoles)
  | summarize by TimeGenerated, TargetUsername, AssignedRoles, OperationName, AADUserId=AccountObjectId
suppressionEnabled: false
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    lookbackDuration: 5h
    matchingMethod: AllEntities
    groupByEntities: []
    groupByAlertDetails: []
    groupByCustomDetails: []
eventGroupingSettings:
  aggregationKind: AlertPerResult
customDetails:
  AssignedRole: AssignedRoles
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: AadUserId
        columnName: AADUserId
  - entityType: Account
    fieldMappings:
      - identifier: FullName
        columnName: TargetUsername
suppressionDuration: 5h