Windows CreateMiniDump.exe HackTool Execution via Process Creation

Detects the execution of CreateMiniDump.exe using image name and a specific IMPHASH.

FreeReviewedSigma · High · v2

Product: windows
Category: process_creation
Author: Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published: 2019-12-22
Updated: 2026-07-31

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003.001LSASS Memory
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule flags execution of the CreateMiniDump.exe hack tool by matching its executable name and an associated imphash pattern. CreateMiniDump is commonly used to produce a memory dump of the LSASS process, which can facilitate offline credential extraction and other post-exploitation steps. It relies on Windows process creation telemetry, including the process image path and imphash metadata.

Reporting behind it

Related detections9 linkedT1003.001 — drag to rearrange

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Windows CreateMiniDump.exe HackTool Execution via Process Creation

Pivot detection · T1003.001 · 9 related

Changelog

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

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

windows-process-execution-of-createminidump-exe-lsass-minidump-36d88494

title: Windows CreateMiniDump.exe HackTool Execution via Process Creation
id: 1f7667ae-ab40-469e-ad54-8f9011ec647a
status: test
description: This rule flags execution of the CreateMiniDump.exe hack tool by matching its executable name and an associated imphash pattern. CreateMiniDump is commonly used to produce a memory dump of the LSASS process, which can facilitate offline credential extraction and other post-exploitation steps. It relies on Windows process creation telemetry, including the process image path and imphash metadata.
references:
  - https://ired.team/offensive-security/credential-access-and-credential-dumping/dumping-lsass-passwords-without-mimikatz-minidumpwritedump-av-signature-bypass
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_createminidump.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2019-12-22
modified: 2024-11-23
tags:
  - attack.credential-access
  - attack.t1003.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|endswith: \CreateMiniDump.exe
    - Hashes|contains: IMPHASH=4a07f944a83e8a7c2525efa35dd30e2f
  condition: selection
falsepositives:
  - Unknown
level: high
license: DRL-1.1
related:
  - id: 36d88494-1d43-4dc0-b3fa-35c8fea0ca9d
    type: derived

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