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Python Spawning Pretty TTY on Windows

Detects python spawning a pretty tty

MITRE ATT&CK

execution

Detection Query

selection_img:
  Image|endswith:
    - python.exe
    - python3.exe
    - python2.exe
selection_cli_1:
  CommandLine|contains|all:
    - import pty
    - .spawn(
selection_cli_2:
  CommandLine|contains: from pty import spawn
condition: selection_img and 1 of selection_cli_*

Author

Nextron Systems

Created

2022-06-03

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://www.volexity.com/blog/2022/06/02/zero-day-exploitation-of-atlassian-confluence/

Tags

attack.executionattack.t1059

Raw Content

title: Python Spawning Pretty TTY on Windows
id: 480e7e51-e797-47e3-8d72-ebfce65b6d8d
related:
    - id: 899133d5-4d7c-4a7f-94ee-27355c879d90
      type: derived
status: test
description: Detects python spawning a pretty tty
references:
    - https://www.volexity.com/blog/2022/06/02/zero-day-exploitation-of-atlassian-confluence/
author: Nextron Systems
date: 2022-06-03
tags:
    - attack.execution
    - attack.t1059
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith:
            - 'python.exe' # no \ bc of e.g. ipython.exe
            - 'python3.exe'
            - 'python2.exe'
    selection_cli_1:
        CommandLine|contains|all:
            - 'import pty'
            - '.spawn('
    selection_cli_2:
        CommandLine|contains: 'from pty import spawn'
    condition: selection_img and 1 of selection_cli_*
falsepositives:
    - Unknown
level: high