
title: Process Dump via Rundll32 and Comsvcs.dll
author: Florian Roth
date: 2020/02/18
description: Detects a process memory dump performed via ordinal function 24 in comsvcs.dll
detection:
  SELECTION_1:
    EventID: 1
  SELECTION_2:
    CommandLine:
    - '*comsvcs.dll,#24*'
    - '*comsvcs.dll,MiniDump*'
    - '*comsvcs.dll MiniDump*'
  condition: (SELECTION_1 and SELECTION_2)
falsepositives:
- Unlikely, because no one should dump the process memory in that way
id: 646ea171-dded-4578-8a4d-65e9822892e3
level: high
logsource:
  category: process_creation
  product: windows
modified: 2021/04/23
references:
- https://twitter.com/shantanukhande/status/1229348874298388484
- https://twitter.com/pythonresponder/status/1385064506049630211?s=21
status: experimental
tags:
- attack.defense_evasion
- attack.t1036
- attack.credential_access
- attack.t1003
- car.2013-05-009
- attack.t1003.001
ruletype: SIGMA
