36 lines
860 B
YAML
36 lines
860 B
YAML
|
|
title: Suspicious Curl Usage on Windows
|
|
author: Florian Roth
|
|
date: 2020/07/03
|
|
description: Detects a suspicious curl process start on Windows and outputs the requested
|
|
document to a local file
|
|
detection:
|
|
SELECTION_1:
|
|
EventID: 1
|
|
SELECTION_2:
|
|
Image: '*\curl.exe'
|
|
SELECTION_3:
|
|
Product: The curl executable
|
|
SELECTION_4:
|
|
CommandLine: '* -O *'
|
|
condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3) and SELECTION_4)
|
|
falsepositives:
|
|
- Scripts created by developers and admins
|
|
- Administrative activity
|
|
fields:
|
|
- CommandLine
|
|
- ParentCommandLine
|
|
id: e218595b-bbe7-4ee5-8a96-f32a24ad3468
|
|
level: medium
|
|
logsource:
|
|
category: process_creation
|
|
product: windows
|
|
modified: 2020/09/05
|
|
references:
|
|
- https://twitter.com/reegun21/status/1222093798009790464
|
|
status: experimental
|
|
tags:
|
|
- attack.command_and_control
|
|
- attack.t1105
|
|
ruletype: SIGMA
|