Suspicious Local File Read Via Curl.EXE (via process_creation)

title: Suspicious Local File Read Via Curl.EXE (via process_creation)
id: bc57bda2-2e5b-55d3-8013-328f6e0cd441
status: stable
description: This rule detects execution of "curl.exe" with the "file://" protocol handler to read local files.
references:
    - https://curl.se/docs/manpage.html
author: Huntrule Team
date: 2026-04-23
tags:
    - attack.execution
    - attack.collection
    - attack.t1005
logsource:
    product: windows
    category: process_creation
detection:
    selection_img:
        - Image|endswith: '\curl.exe'
        - OriginalFileName: 'curl.exe'
    selection_cli:
        CommandLine|contains: 'file:///'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_curl_local_file_read/info.yml