Windows Process Creation: ADCSPwn Command-Line Parameters Indicating ADCS Abuse

Identifies Windows processes with command-line arguments consistent with ADCSPwn targeting ADCS and a specified port.

FreeReviewedSigma · High · v2
Product
windows
Category
process_creation
Author
Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2021-07-31
Updated
2026-07-31
title: "Windows Process Creation: ADCSPwn Command-Line Parameters Indicating ADCS Abuse"
id: 5c0296fa-8b14-450e-b961-70affb0cf0f7
status: test
description: This rule flags Windows process executions whose command line includes specific parameter patterns associated with ADCSPwn. The behavior matters because ADCSPwn is used to interact with AD CS endpoints and can be leveraged as part of privilege escalation in active directory environments. Telemetry relies on process creation events with access to full command-line arguments.
references:
  - https://github.com/bats3c/ADCSPwn
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_adcspwn.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2021-07-31
modified: 2023-02-04
tags:
  - attack.collection
  - attack.credential-access
  - attack.t1557.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    CommandLine|contains|all:
      - " --adcs "
      - " --port "
  condition: selection
falsepositives:
  - Unlikely
level: high
license: DRL-1.1
related:
  - id: cd8c163e-a19b-402e-bdd5-419ff5859f12
    type: derived