Suspicious Execution of Renamed CURL.EXE (via process_creation)

title: Suspicious Execution of Renamed CURL.EXE (via process_creation)
id: b9a58e81-fe5c-59d1-b6b4-d92d49002c5a
status: stable
description: This rule detects the execution of a renamed "CURL.exe" binary based on the PE metadata fields
references:
    - https://attack.mitre.org/techniques/T1202/
    - https://attack.mitre.org/techniques/T1059/
    - https://twitter.com/Kostastsale/status/1700965142828290260
author: Huntrule Team
date: 2026-01-23
tags:
    - attack.execution
    - attack.stealth
    - attack.t1059
    - attack.t1202
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - OriginalFileName: 'curl.exe'
        - Description: 'The curl executable'
    filter_main_img:
        Image|contains: '\curl'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_renamed_curl/info.yml