Potential Download/Upload Activity Using Type Command — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2022-12-14 / not supplied.

{
  "product": "windows",
  "category": "process_creation"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 0a1a559e7654687a709c88239539cdfa462180f57e92ae0682500eec30d7a5fa

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Potential Download/Upload Activity Using Type Command
id: aa0b3a82-eacc-4ec3-9150-b5a9a3e3f82f
status: test
description: Detects usage of the "type" command to download/upload data from WebDAV server
references:
    - https://mr0range.com/a-new-lolbin-using-the-windows-type-command-to-upload-download-files-81d7b6179e22
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-12-14
tags:
    - attack.command-and-control
    - attack.t1105
logsource:
    product: windows
    category: process_creation
detection:
    # Note that since built in CMD commands do not trigger a process creation. This would be detected only if used in a "/c" command
    selection_upload:
        CommandLine|contains|all:
            - 'type '
            - ' > \\\\'
    selection_download:
        CommandLine|contains|all:
            - 'type \\\\'
            - ' > ' # Space are added to increase atom length and speed up matching. If your backend can handle this remove the space
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://mr0range.com/a-new-lolbin-using-the-windows-type-command-to-upload-download-files-81d7b6179e22