Sensitive File Dump Via Print.EXE


Description

Detects the abuse of the Print.exe utility for credential harvesting which involves using Print.Exe to copy sensitive files such as ntds.dit, SAM, SECURITY, or SYSTEM from the Windows directory in order to extract credentials, locally or remotely.

Query · sigma

selection_img:
- Image|endswith: \print.exe
- OriginalFileName: Print.EXE
selection_cli:
  CommandLine|contains|windash: /D
  CommandLine|contains:
  - \config\SAM
  - \config\SECURITY
  - \config\SYSTEM
  - \windows\ntds\ntds.dit
condition: all of selection_*

Known false positives

  • Unlikely
Raw source Sensitive File Dump Via Print.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
title: Sensitive File Dump Via Print.EXE
id: 2fcda7e2-8c57-4904-86ac-37fc3157e09d
status: test
description: |
    Detects the abuse of the Print.exe utility for credential harvesting which involves using Print.Exe to copy sensitive files such as ntds.dit, SAM, SECURITY, or SYSTEM from the Windows directory in order to extract credentials, locally or remotely.
references:
    - https://www.microsoft.com/en-us/security/blog/2026/02/06/active-exploitation-solarwinds-web-help-desk/
    - https://www.huntress.com/blog/credential-theft-expanding-your-reach-pt-2
    - https://lolbas-project.github.io/lolbas/Binaries/Print/
author: Ayush Anand (Securityinbits)
date: 2026-04-28
tags:
    - attack.credential-access
    - attack.stealth
    - attack.t1003.003
    - attack.t1003.002
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\print.exe'
        - OriginalFileName: 'Print.EXE'
    selection_cli:
        CommandLine|contains|windash: '/D'
        CommandLine|contains:
            - '\config\SAM'
            - '\config\SECURITY'
            - '\config\SYSTEM'
            - '\windows\ntds\ntds.dit'
    condition: all of selection_*
falsepositives:
    - Unlikely
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_print_dump_sensitive_files/info.yml

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