Suspicious Unsigned Image Loaded Into LSASS Process (via image_load)

title: Suspicious Unsigned Image Loaded Into LSASS Process (via image_load)
id: 1a6d9158-d297-52b3-8920-4ecab8e40827
status: stable
description: This rule detects loading unsigned image (DLL, EXE) into LSASS process
references:
    - https://attack.mitre.org/techniques/T1003/001/
    - https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment
author: Huntrule Team
date: 2026-04-18
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        Image|endswith: '\lsass.exe'
        Signed: 'false'
    condition: selection
falsepositives:
    - Unknown
level: medium