Potential NTLM Coercion Via Certutil.EXE

Description

Detects possible NTLM coercion via certutil using the 'syncwithWU' flag

Query · sigma

selection_img:
- Image|endswith: \certutil.exe
- OriginalFileName: CertUtil.exe
selection_cli:
  CommandLine|contains|all:
  - ' -syncwithWU '
  - ' \\\\'
condition: all of selection_*

Known false positives

  • Unknown
Raw source Potential NTLM Coercion Via Certutil.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Potential NTLM Coercion Via Certutil.EXE
id: 6c6d9280-e6d0-4b9d-80ac-254701b64916
status: test
description: Detects possible NTLM coercion via certutil using the 'syncwithWU' flag
references:
    - https://github.com/LOLBAS-Project/LOLBAS/issues/243
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-01
modified: 2023-02-14
tags:
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\certutil.exe'
        - OriginalFileName: 'CertUtil.exe'
    selection_cli:
        CommandLine|contains|all:
            - ' -syncwithWU '
            - ' \\\\'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_certutil_ntlm_coercion/info.yml

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