Detection rules › Sigma
Sensitive File Dump Via Print.EXE
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.
Known false positives
- Unlikely
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | |
| Credential Access |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
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
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_img
selection_img:
- Image|endswith: '\print.exe'
- OriginalFileName: 'Print.EXE'
Stage 2: selection_cli
selection_cli:
CommandLine|contains|windash: '/D'
CommandLine|contains:
- '\config\SAM'
- '\config\SECURITY'
- '\config\SYSTEM'
- '\windows\ntds\ntds.dit'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
Image | ends_with |
| field:"Image" kind:ends_with value:"\print.exe" |
OriginalFileName | eq |
| field:"OriginalFileName" kind:eq value:"Print.EXE" |