High-Risk Admin Activity

id: 9f82a735-ae43-4c03-afb4-d5d153e1ace1
name: High-Risk Admin Activity
description: |
  The Okta risk engine auto-assigns risk levels to each login attempt. This rule identifies successful admin operations that correlate with successful high-risk Okta authentication or session start events.
severity: Medium
status: Available
requiredDataConnectors:
  - connectorId: OktaSSO
    dataTypes:
      - Okta_CL
  - connectorId: OktaSSOv2
    dataTypes:
      - OktaSSO
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Persistence
  - PrivilegeEscalation
relevantTechniques:
  - T1098
  - T1078.004
query: |
  let AdminActivity = dynamic(["iam.role.create","iam.role.permissions.add","user.session.access_admin_app","user.mfa.factor.suspend", "user.account.privilege.grant", "group.privilege.grant", "system.api_token.create", "user.session.impersonation.grant"]);
  // Define the list of allowed admins to exclude from the alert. This can be modified to include specific admin accounts that are known to perform high-risk activities as part of their job function.
  let AllowedAdmins = dynamic([]);
  let AdminOperations = OktaSSO
  | where actor_alternateId_s !in (AllowedAdmins)
  | where eventType_s in (AdminActivity)
  | where outcome_result_s =~ 'SUCCESS' 
  | summarize  StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by  actor_alternateId_s, actor_displayName_s, client_userAgent_os_s, client_userAgent_browser_s, client_device_s, client_userAgent_rawUserAgent_s, client_ipAddress_s, client_geographicalContext_country_s, client_geographicalContext_city_s, displayMessage_s, outcome_result_s, outcome_reason_s, column_ifexists('debugContext_debugData_logOnlySecurityData_s', ""), column_ifexists('debugContext_debugData_threatSuspected_s', ""), client_geographicalContext_geolocation_lat_d, client_geographicalContext_geolocation_lon_d, authenticationContext_externalSessionId_s;
  let HighRiskEvents = OktaSSO
  | where eventType_s in ('policy.evaluate_sign_on' , 'user.session.start')
  | extend debugContext_debugData_logOnlySecurityData_s = column_ifexists('debugContext_debugData_logOnlySecurityData_s', '{}')
  | where parse_json(tostring(parse_json(debugContext_debugData_logOnlySecurityData_s).risk)).level =~ "HIGH"
  | where outcome_result_s =~ 'SUCCESS'
  | extend reasons = tostring(parse_json(tostring(parse_json(debugContext_debugData_logOnlySecurityData_s).risk)).reasons)
  | summarize  StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by  actor_alternateId_s, actor_displayName_s, client_userAgent_os_s, client_userAgent_browser_s, client_device_s, client_userAgent_rawUserAgent_s, client_ipAddress_s, client_geographicalContext_country_s, client_geographicalContext_city_s, displayMessage_s, outcome_result_s, outcome_reason_s, column_ifexists('debugContext_debugData_logOnlySecurityData_s', ""), column_ifexists('debugContext_debugData_threatSuspected_s', ""), client_geographicalContext_geolocation_lat_d, client_geographicalContext_geolocation_lon_d, authenticationContext_externalSessionId_s, reasons;
  AdminOperations
  | join kind=inner (HighRiskEvents) on actor_displayName_s, client_ipAddress_s, authenticationContext_externalSessionId_s
  | project StartTime, EndTime, actor_alternateId_s, actor_displayName_s, client_userAgent_os_s, client_userAgent_browser_s, client_device_s, client_userAgent_rawUserAgent_s, client_ipAddress_s, client_geographicalContext_country_s, client_geographicalContext_city_s, displayMessage_s, outcome_result_s, outcome_reason_s, column_ifexists('debugContext_debugData_logOnlySecurityData_s', ""), column_ifexists('debugContext_debugData_threatSuspected_s', ""), client_geographicalContext_geolocation_lat_d, client_geographicalContext_geolocation_lon_d, authenticationContext_externalSessionId_s, reasons
  | extend AccountName = tostring(split(actor_alternateId_s, "@")[0]), AccountUPNSuffix = tostring(split(actor_alternateId_s, "@")[1])
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: AccountName
      - identifier: UPNSuffix
        columnName: AccountUPNSuffix
  - entityType: IP
    fieldMappings:
      - identifier: Address
        columnName: client_ipAddress_s
customDetails:
  SessionId: authenticationContext_externalSessionId_s
  AdminDisplayName: actor_displayName_s
  AdminDeviceOS: client_userAgent_os_s
  AdminDevice: client_device_s
  UserAgent: client_userAgent_rawUserAgent_s
alertDetailsOverride:
  alertDisplayNameFormat: 'High-Risk admin activity by {{actor_displayName_s}} from IP {{client_ipAddress_s}}'
  alertDescriptionFormat: 'High-risk Okta activity by {{actor_displayName_s}} from IP {{client_ipAddress_s}} correlated with admin action during session {{authenticationContext_externalSessionId_s}}'
version: 1.1.3
kind: Scheduled