HKTL - SharpSuccessor Privilege Escalation Tool Execution


Description

Detects the execution of SharpSuccessor, a tool used to exploit the BadSuccessor attack for privilege escalation in WinServer 2025 Active Directory environments. Successful usage of this tool can let the attackers gain the domain admin privileges by exploiting the BadSuccessor vulnerability.

Query · sigma

selection:
- Image|endswith: \SharpSuccessor.exe
- OriginalFileName: SharpSuccessor.exe
- CommandLine|contains: SharpSuccessor
- CommandLine|contains|all:
  - ' add '
  - ' /impersonate'
  - ' /path'
  - ' /account'
  - ' /name'
condition: selection

Known false positives

  • Unknown
Raw source HKTL - SharpSuccessor Privilege Escalation Tool Execution · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
title: HKTL - SharpSuccessor Privilege Escalation Tool Execution
id: 38a1ac5f-9c74-47d2-a345-dd6f5eb4e7c8
status: experimental
description: |
    Detects the execution of SharpSuccessor, a tool used to exploit the BadSuccessor attack for privilege escalation in WinServer 2025 Active Directory environments.
    Successful usage of this tool can let the attackers gain the domain admin privileges by exploiting the BadSuccessor vulnerability.
references:
    - https://github.com/logangoins/SharpSuccessor
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-06-06
tags:
    - attack.privilege-escalation
    - attack.t1068
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\SharpSuccessor.exe'
        - OriginalFileName: 'SharpSuccessor.exe'
        - CommandLine|contains: 'SharpSuccessor'
        - CommandLine|contains|all:
              - ' add '
              - ' /impersonate'
              - ' /path'
              - ' /account'
              - ' /name'
    condition: selection
falsepositives:
    - Unknown
level: high

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