DMP/HDMP File Creation

Status: test
Severity: low
Log source: category file_event, product windows
Author: Nasreddine Bencherchali (Nextron Systems)
Source: github.com/SigmaHQ/sigma

Detects the creation of a file with the ".dmp"/".hdmp" extension. 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.

Known false positives

Likely during crashes of software

MITRE ATT&CK coverage

Tactic	Techniques
Stealth	No specific technique

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 11: FileCreate

Rule body

title: DMP/HDMP File Creation
id: 3a525307-d100-48ae-b3b9-0964699d7f97
status: test
description: Detects the creation of a file with the ".dmp"/".hdmp" extension. 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:
    - detection.threat-hunting
    - attack.stealth
logsource:
    category: file_event
    product: windows
detection:
    selection:
        TargetFilename|endswith:
            - '.dmp'
            - '.dump'
            - '.hdmp'
    condition: selection
falsepositives:
    - Likely during crashes of software
level: low

Stages and Predicates

Stage 0: `condition`

selection

Stage 1: `selection`

selection:
    TargetFilename|endswith:
        - '.dmp'
        - '.dump'
        - '.hdmp'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`TargetFilename`	ends_with	`.dmp` corpus 5 (sigma 5) `.dump` corpus 2 (sigma 2) `.hdmp` corpus 2 (sigma 2)	`field:"TargetFilename" kind:ends_with`