sigmahighHunting

File Download Via Windows Defender MpCmpRun.EXE

Detects the use of Windows Defender MpCmdRun.EXE to download files

MITRE ATT&CK

defense-evasioncommand-and-control

Detection Query

selection_img:
  - OriginalFileName: MpCmdRun.exe
  - Image|endswith: \MpCmdRun.exe
  - CommandLine|contains: MpCmdRun.exe
  - Description: Microsoft Malware Protection Command Line Utility
selection_cli:
  CommandLine|contains|all:
    - DownloadFile
    - url
condition: all of selection_*

Author

Matthew Matchen

Created

2020-09-04

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasionattack.t1218attack.command-and-controlattack.t1105

Raw Content

title: File Download Via Windows Defender MpCmpRun.EXE
id: 46123129-1024-423e-9fae-43af4a0fa9a5
status: test
description: Detects the use of Windows Defender MpCmdRun.EXE to download files
references:
    - https://web.archive.org/web/20200903194959/https://twitter.com/djmtshepana/status/1301608169496612866
    - https://lolbas-project.github.io/lolbas/Binaries/MpCmdRun/
author: Matthew Matchen
date: 2020-09-04
modified: 2023-11-09
tags:
    - attack.defense-evasion
    - attack.t1218
    - attack.command-and-control
    - attack.t1105
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - OriginalFileName: 'MpCmdRun.exe'
        - Image|endswith: '\MpCmdRun.exe'
        - CommandLine|contains: 'MpCmdRun.exe'
        - Description: 'Microsoft Malware Protection Command Line Utility'
    selection_cli:
        CommandLine|contains|all:
            - 'DownloadFile'
            - 'url'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high