Suspicious File Characteristics Due to Missing Fields (via process_creation)

This rule detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe

SigmamediumWindowsv1
sigma
title: Suspicious File Characteristics Due to Missing Fields (via process_creation)
id: 9362bf6d-07f6-58f6-b62d-088d01e54109
status: stable
description: This rule detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe
references:
    - https://attack.mitre.org/techniques/T1059/006/
    - https://securelist.com/muddywater/88059/
    - https://www.virustotal.com/#/file/276a765a10f98cda1a38d3a31e7483585ca3722ecad19d784441293acf1b7beb/detection
author: Huntrule Team
date: 2026-06-24
tags:
    - attack.execution
    - attack.t1059.006
logsource:
    product: windows
    category: process_creation
detection:
    selection1:
        Description: '\?'
        FileVersion: '\?'
    selection2:
        Description: '\?'
        Product: '\?'
    selection3:
        Description: '\?'
        Company: '\?'
    folder:
        Image|contains: '\Downloads\'
    condition: (selection1 or selection2 or selection3) and folder
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.