Potentially Suspicious DMP/HDMP File Creation

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