title: Microsoft Office Product Spawning Windows Shell
author: Michael Haag, Florian Roth, Markus Neis, Elastic, FPT.EagleEye Team
date: 2018/04/06
description: Detects a Windows command and scripting interpreter executable started
    from Microsoft Word, Excel, Powerpoint, Publisher and Visio
detection:
    SELECTION_1:
        EventID: 1
    SELECTION_10:
        Image: '*\cmd.exe'
    SELECTION_11:
        Image: '*\powershell.exe'
    SELECTION_12:
        Image: '*\wscript.exe'
    SELECTION_13:
        Image: '*\cscript.exe'
    SELECTION_14:
        Image: '*\sh.exe'
    SELECTION_15:
        Image: '*\bash.exe'
    SELECTION_16:
        Image: '*\scrcons.exe'
    SELECTION_17:
        Image: '*\schtasks.exe'
    SELECTION_18:
        Image: '*\regsvr32.exe'
    SELECTION_19:
        Image: '*\hh.exe'
    SELECTION_2:
        ParentImage: '*\WINWORD.EXE'
    SELECTION_20:
        Image: '*\wmic.exe'
    SELECTION_21:
        Image: '*\mshta.exe'
    SELECTION_22:
        Image: '*\rundll32.exe'
    SELECTION_23:
        Image: '*\msiexec.exe'
    SELECTION_24:
        Image: '*\forfiles.exe'
    SELECTION_25:
        Image: '*\scriptrunner.exe'
    SELECTION_26:
        Image: '*\mftrace.exe'
    SELECTION_27:
        Image: '*\AppVLP.exe'
    SELECTION_28:
        Image: '*\svchost.exe'
    SELECTION_29:
        Image: '*\msbuild.exe'
    SELECTION_3:
        ParentImage: '*\EXCEL.EXE'
    SELECTION_4:
        ParentImage: '*\POWERPNT.exe'
    SELECTION_5:
        ParentImage: '*\MSPUB.exe'
    SELECTION_6:
        ParentImage: '*\VISIO.exe'
    SELECTION_7:
        ParentImage: '*\OUTLOOK.EXE'
    SELECTION_8:
        ParentImage: '*\MSACCESS.EXE'
    SELECTION_9:
        ParentImage: '*\EQNEDT32.EXE'
    condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3 or SELECTION_4 or SELECTION_5
        or SELECTION_6 or SELECTION_7 or SELECTION_8 or SELECTION_9) and (SELECTION_10
        or SELECTION_11 or SELECTION_12 or SELECTION_13 or SELECTION_14 or SELECTION_15
        or SELECTION_16 or SELECTION_17 or SELECTION_18 or SELECTION_19 or SELECTION_20
        or SELECTION_21 or SELECTION_22 or SELECTION_23 or SELECTION_24 or SELECTION_25
        or SELECTION_26 or SELECTION_27 or SELECTION_28 or SELECTION_29))
falsepositives:
- unknown
fields:
- CommandLine
- ParentCommandLine
id: 438025f9-5856-4663-83f7-52f878a70a50
level: high
logsource:
    category: process_creation
    product: windows
modified: 2020/09/01
references:
- https://www.hybrid-analysis.com/sample/465aabe132ccb949e75b8ab9c5bda36d80cf2fd503d52b8bad54e295f28bbc21?environmentId=100
- https://mgreen27.github.io/posts/2018/04/02/DownloadCradle.html
status: experimental
tags:
- attack.execution
- attack.t1204
- attack.t1204.002
yml_filename: win_office_shell.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation