title: Mustang Panda Dropper
author: Florian Roth, oscd.community
date: 2019/10/30
description: Detects specific process parameters as used by Mustang Panda droppers
detection:
    SELECTION_1:
        EventID: 1
    SELECTION_10:
        Image: '*Temp\winwsh.exe'
    SELECTION_2:
        CommandLine: '*Temp\wtask.exe /create*'
    SELECTION_3:
        CommandLine: '*%windir:~-3,1%%PUBLIC:~-9,1%*'
    SELECTION_4:
        CommandLine: '*/tn "Security Script *'
    SELECTION_5:
        CommandLine: '*%windir:~-1,1%*'
    SELECTION_6:
        CommandLine: '*/E:vbscript*'
    SELECTION_7:
        CommandLine: '*C:\Users\\*'
    SELECTION_8:
        CommandLine: '*.txt*'
    SELECTION_9:
        CommandLine: '*/F*'
    condition: (SELECTION_1 and ((SELECTION_2 or SELECTION_3 or SELECTION_4 or SELECTION_5)
        or (SELECTION_6 and SELECTION_7 and SELECTION_8 and SELECTION_9) or SELECTION_10))
falsepositives:
- Unlikely
fields:
- CommandLine
- ParentCommandLine
id: 2d87d610-d760-45ee-a7e6-7a6f2a65de00
level: high
logsource:
    category: process_creation
    product: windows
references:
- https://app.any.run/tasks/7ca5661d-a67b-43ec-98c1-dd7a8103c256/
- https://app.any.run/tasks/b12cccf3-1c22-4e28-9d3e-c7a6062f3914/
- https://www.anomali.com/blog/china-based-apt-mustang-panda-targets-minority-groups-public-and-private-sector-organizations
status: experimental
tags:
- attack.t1587.001
- attack.resource_development
yml_filename: win_apt_mustangpanda.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation