Possible Access Token Misuse (via security)

title: Possible Access Token Misuse (via security)
id: edb6d5d8-b49f-5a79-8ce8-c0dae5ec0331
status: stable
description: This rule detects potential token impersonation and theft. Example, when using "DuplicateToken(Ex)" and "ImpersonateLoggedOnUser" with the "LOGON32_LOGON_NEW_CREDENTIALS flag".
references:
    - https://attack.mitre.org/techniques/T1134/001/
    - https://www.elastic.co/fr/blog/how-attackers-abuse-access-token-manipulation
    - https://www.manageengine.com/log-management/cyber-security/access-token-manipulation.html
author: Huntrule Team
date: 2026-06-15
tags:
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1134.001
    - stp.4u
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4624
        LogonType: 9
        LogonProcessName: 'Advapi'
        AuthenticationPackageName: 'Negotiate'
        ImpersonationLevel: '%%1833'
    condition: selection
falsepositives:
    - Unknown
level: medium