GitHub Repo

Azure Ad Guest User Type Changed To Member

Date: 2026-06-11 ID: 4b8d2f6a-1c9e-4a3b-9d7f-6e2a4c8b1f95 Author: descambiado Environment: attack_range Directory: azure_ad_guest_user_type_changed_to_member

Description

Changed the UserType property of an Entra ID guest account from Guest to Member, removing the tenant-resource restrictions guest accounts normally carry. Includes one benign Update user event (MobilePhone change) with no UserType property, to validate filter specificity. Tenant specific details have been replaced in the dataset including tenant id, user names, ips, etc.

MITRE ATT&CK Techniques

ID Technique Tactic
T1098 Account Manipulation Persistence, Privilege Escalation

Environment Details

Field Value
Environment attack_range
Directory azure_ad_guest_user_type_changed_to_member
Test Date 2026-06-11

Datasets

The following datasets were collected during this attack simulation:

Azure-Audit

  • Path: /datasets/attack_techniques/T1098/azure_ad_guest_user_type_changed_to_member/azure-audit.log
  • Sourcetype: azure:monitor:aad
  • Source: azure

No specific detections currently use this attack data for testing. However, you can find related detections and analytics in our security content repository.

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1098/azure_ad_guest_user_type_changed_to_member/azure-audit.log --index attack_data

Manual Import

  1. Download the dataset files from the paths listed above
  2. Configure your Splunk instance with the appropriate sourcetypes
  3. Import the logs using the Splunk Add Data wizard

Related Content

Find more detections and analytics for this attack technique in our security content repository.

Source: GitHub | Version: 1.0