VMMap Signed Dbghelp.DLL Possible Sideloading (via image_load)
This rule detects potential DLL sideloading of a signed dbghelp.dll by the Sysinternals VMMap.
SigmamediumWindowsv1
sigma
vmmap-signed-dbghelp-dll-possible-sideloading-via-image-load
title: VMMap Signed Dbghelp.DLL Possible Sideloading (via image_load)
id: 8c8cbbe1-bb5d-5ace-8860-497b077282d0
status: stable
description: This rule detects potential DLL sideloading of a signed dbghelp.dll by the Sysinternals VMMap.
references:
- https://attack.mitre.org/techniques/T1574/001/
- https://techcommunity.microsoft.com/t5/sysinternals-blog/zoomit-v7-1-procdump-2-0-for-linux-process-explorer-v17-05/ba-p/3884766
author: Huntrule Team
date: 2026-04-18
tags:
- attack.persistence
- attack.privilege-escalation
- attack.execution
- attack.stealth
- attack.t1574.001
logsource:
category: image_load
product: windows
detection:
selection:
ImageLoaded|contains: 'C:\Debuggers\dbghelp.dll'
Image|endswith:
- '\vmmap.exe'
- '\vmmap64.exe'
Signed: 'true'
condition: selection
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.