SigmaHQ/rules/windows/process_creation/win_susp_comsvcs_procdump.yml
2020-06-16 14:46:08 -06:00

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YAML

title: Process Dump via Comsvcs DLL
id: 09e6d5c0-05b8-4ff8-9eeb-043046ec774c
status: experimental
description: Detects process memory dump via comsvcs.dll and rundll32
references:
- https://modexp.wordpress.com/2019/08/30/minidumpwritedump-via-com-services-dll/
- https://twitter.com/SBousseaden/status/1167417096374050817
author: Modexp (idea)
date: 2019/09/02
logsource:
category: process_creation
product: windows
detection:
rundll_image:
Image: '*\rundll32.exe'
rundll_ofn:
OriginalFileName: 'RUNDLL32.EXE'
selection:
CommandLine:
- '*comsvcs*MiniDump*full*'
- '*comsvcs*MiniDumpW*full*'
condition: (rundll_image or rundll_ofn) and selection
fields:
- CommandLine
- ParentCommandLine
tags:
- attack.credential_access
- attack.t1003
- attack.t1003.001
falsepositives:
- unknown
level: medium