Potential Discovery Activity Via Dnscmd.EXE


Description

Detects an attempt to leverage dnscmd.exe to enumerate the DNS zones of a domain. DNS zones used to host the DNS records for a particular domain.

Query · sigma

selection_img:
  Image|endswith: \dnscmd.exe
selection_cli:
  CommandLine|contains:
  - /enumrecords
  - /enumzones
  - /ZonePrint
  - /info
condition: all of selection_*

Known false positives

  • Legitimate administration use
Raw source Potential Discovery Activity Via Dnscmd.EXE · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified.
title: Potential Discovery Activity Via Dnscmd.EXE
id: b6457d63-d2a2-4e29-859d-4e7affc153d1
status: test
description: Detects an attempt to leverage dnscmd.exe to enumerate the DNS zones of a domain. DNS zones used to host the DNS records for a particular domain.
references:
    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/dnscmd
    - https://learn.microsoft.com/en-us/azure/dns/dns-zones-records
    - https://lolbas-project.github.io/lolbas/Binaries/Dnscmd/
author: '@gott_cyber'
date: 2022-07-31
modified: 2023-02-04
tags:
    - attack.discovery
    - attack.execution
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith: '\dnscmd.exe'
    selection_cli:
        CommandLine|contains:
            - '/enumrecords'
            - '/enumzones'
            - '/ZonePrint'
            - '/info'
    condition: all of selection_*
falsepositives:
    - Legitimate administration use
level: medium

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