sigmalowHunting

Curl.EXE Execution

Detects a curl process start on Windows, which could indicates a file download from a remote location or a simple web request to a remote server

MITRE ATT&CK

T1105

command-and-control

Detection Query

selection:
  - Image|endswith: \curl.exe
  - Product: The curl executable
condition: selection

Author

Florian Roth (Nextron Systems)

Created

2022-07-05

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://web.archive.org/web/20200128160046/https://twitter.com/reegun21/status/1222093798009790464

Tags

attack.command-and-controlattack.t1105detection.threat-hunting

Raw Content

title: Curl.EXE Execution
id: bbeaed61-1990-4773-bf57-b81dbad7db2d
related:
    - id: e218595b-bbe7-4ee5-8a96-f32a24ad3468 # Suspicious curl execution
      type: derived
status: test
description: Detects a curl process start on Windows, which could indicates a file download from a remote location or a simple web request to a remote server
references:
    - https://web.archive.org/web/20200128160046/https://twitter.com/reegun21/status/1222093798009790464
author: Florian Roth (Nextron Systems)
date: 2022-07-05
modified: 2023-02-21
tags:
    - attack.command-and-control
    - attack.t1105
    - detection.threat-hunting
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\curl.exe'
        - Product: 'The curl executable'
    condition: selection
falsepositives:
    - Scripts created by developers and admins
    - Administrative activity
level: low