Detection rules › Sigma
Potentially Suspicious DMP/HDMP File Creation
Detects the creation of a file with the ".dmp"/".hdmp" extension by a shell or scripting application such as "cmd", "powershell", etc. Often created by software during a crash. Memory dumps can sometimes contain sensitive information such as credentials. It's best to determine the source of the crash.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | No specific technique |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 11 | FileCreate |
Rule body yaml
title: Potentially Suspicious DMP/HDMP File Creation
id: aba15bdd-657f-422a-bab3-ac2d2a0d6f1c
related:
- id: 3a525307-d100-48ae-b3b9-0964699d7f97
type: similar
status: test
description: Detects the creation of a file with the ".dmp"/".hdmp" extension by a shell or scripting application such as "cmd", "powershell", etc. Often created by software during a crash. Memory dumps can sometimes contain sensitive information such as credentials. It's best to determine the source of the crash.
references:
- https://learn.microsoft.com/en-us/windows/win32/wer/collecting-user-mode-dumps
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-09-07
tags:
- attack.stealth
logsource:
category: file_event
product: windows
detection:
selection:
Image|endswith:
- '\cmd.exe'
- '\cscript.exe'
- '\mshta.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\wscript.exe'
TargetFilename|endswith:
- '.dmp'
- '.dump'
- '.hdmp'
condition: selection
falsepositives:
- Some administrative PowerShell or VB scripts might have the ability to collect dumps and move them to other folders which might trigger a false positive.
level: medium
regression_tests_path: regression_data/rules/windows/file/file_event/file_event_win_dump_file_susp_creation/info.yml
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith:
- '\cmd.exe'
- '\cscript.exe'
- '\mshta.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\wscript.exe'
TargetFilename|endswith:
- '.dmp'
- '.dump'
- '.hdmp'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | ends_with |
|
TargetFilename | ends_with |
|