SigmaHQ/rules/windows/process_creation/win_susp_file_characteristics.yml

title: Suspicious File Characteristics Due to Missing Fields
id: 9637e8a5-7131-4f7f-bdc7-2b05d8670c43
description: Detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe
status: experimental
references:
    - https://securelist.com/muddywater/88059/
    - https://www.virustotal.com/#/file/276a765a10f98cda1a38d3a31e7483585ca3722ecad19d784441293acf1b7beb/detection
author: Markus Neis, Sander Wiebing
date: 2018/11/22
modified: 2020/05/26
tags:
    - attack.execution
    - attack.t1059.006
    - attack.defense_evasion        # an old one
    - attack.t1064      # an old one
logsource:
    product: windows
    category: process_creation
detection:
    selection1:
        Description: '\?'
        FileVersion: '\?'
    selection2:
        Description: '\?'
        Product: '\?'
    selection3:
        Description: '\?'
        Company: '\?'
    folder:
        Image: '*\Downloads\\*'
    condition: (selection1 or selection2 or selection3) and folder
fields:
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Unknown
level: medium