title: Notepad Making Network Connection
id: e81528db-fc02-45e8-8e98-4e84aba1f10b
status: experimental
description: Detects suspicious network connection by Notepad
references:
    - https://www.sans.org/cyber-security-summit/archives/file/summit-archive-1492186586.pdf
    - https://blog.cobaltstrike.com/2013/08/08/why-is-notepad-exe-connecting-to-the-internet/
tags:
    - attack.command_and_control
    - attack.execution
author: EagleEye Team
logsource:
    product: windows
    service: sysmon
date: 2020/05/14
detection:
    selection:
        EventID: 3
        Image: '*\notepad.exe'
    filter:
        DestinationPort: '9100'
    condition: selection and not filter
falsepositives:
    - None observed so far
level: high