Detection rules › Sigma
Suspicious File Characteristics Due to Missing Fields
Detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
title: Suspicious File Characteristics Due to Missing Fields
id: 9637e8a5-7131-4f7f-bdc7-2b05d8670c43
status: test
description: Detects Executables in the Downloads folder without FileVersion,Description,Product,Company likely created with py2exe
references:
- https://securelist.com/muddywater/88059/
- https://www.virustotal.com/#/file/276a765a10f98cda1a38d3a31e7483585ca3722ecad19d784441293acf1b7beb/detection
author: Markus Neis, Sander Wiebing
date: 2018-11-22
modified: 2022-10-09
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
Stages and Predicates
Stage 0: condition
(selection1 or selection2 or selection3) and folderStage 1: selection1
selection1:
Description: '\?'
FileVersion: '\?'
Stage 2: selection2
selection2:
Description: '\?'
Product: '\?'
Stage 3: selection3
selection3:
Description: '\?'
Company: '\?'
Stage 4: folder
folder:
Image|contains: '\Downloads\'
Indicators
These rows show field, operator, and value matches.