Windows HackTool Execution: Dumpert Process Dumper Loading Dumpert.dll

Detects Dumpert execution on Windows via known hash and command line reference to Dumpert.dll for lsass memory dumping.

FreeUnreviewedSigmacriticalv1

windows-hacktool-execution-dumpert-process-dumper-loading-dumpert-dll-2704ab9e

title: "Windows HackTool Execution: Dumpert Process Dumper Loading Dumpert.dll"
id: e8d0d804-a9a6-4e3f-b384-e37004fbca8a
status: test
description: This rule flags execution of the Dumpert process dumper tool by matching the known MD5 hash and a command line containing Dumpert.dll. Dumping lsass.exe memory is a common credential access technique because it can expose sensitive authentication material. The detection relies on Windows process creation telemetry, specifically process command line arguments and the process image hash.
references:
  - https://github.com/outflanknl/Dumpert
  - https://unit42.paloaltonetworks.com/actors-still-exploiting-sharepoint-vulnerability/
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_dumpert.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2020-02-04
modified: 2025-01-22
tags:
  - attack.credential-access
  - attack.t1003.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Hashes|contains: MD5=09D278F9DE118EF09163C6140255C690
    - CommandLine|contains: Dumpert.dll
  condition: selection
falsepositives:
  - Very unlikely
level: critical
license: DRL-1.1
related:
  - id: 2704ab9e-afe2-4854-a3b1-0c0706d03578
    type: derived

What it detects

This rule flags execution of the Dumpert process dumper tool by matching the known MD5 hash and a command line containing Dumpert.dll. Dumping lsass.exe memory is a common credential access technique because it can expose sensitive authentication material. The detection relies on Windows process creation telemetry, specifically process command line arguments and the process image hash.

Known false positives

Very unlikely

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.