title: MS Office Product Spawning Exe in User Dir
id: aa3a6f94-890e-4e22-b634-ffdfd54792cc
status: experimental
description: Detects an executable in the users directory started from Microsoft Word, Excel, Powerpoint, Publisher or Visio
references:
    - sha256=23160972c6ae07f740800fa28e421a81d7c0ca5d5cab95bc082b4a986fbac57c
    - https://blog.morphisec.com/fin7-not-finished-morphisec-spots-new-campaign
tags:
    - attack.execution
    - attack.t1204.002
    - attack.g0046
    - car.2013-05-002
author: Jason Lynch
date: 2019/04/02
modified: 2022/06/02
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith:
            - '\WINWORD.EXE'
            - '\EXCEL.EXE'
            - '\POWERPNT.exe'
            - '\MSPUB.exe'
            - '\VISIO.exe'
            - '\MSACCESS.exe'
            - '\EQNEDT32.exe'
            # - '\OUTLOOK.EXE' too many FPs
        Image|startswith: 'C:\users\'
        Image|endswith: '.exe'
    filter:
        Image|endswith: '\Teams.exe'
    condition: selection and not filter
fields:
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Unknown
level: high
