Potential Discovery Activity Via Dnscmd.EXE

 1title: Potential Discovery Activity Via Dnscmd.EXE
 2id: b6457d63-d2a2-4e29-859d-4e7affc153d1
 3status: test
 4description: 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.
 5references:
 6    - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/dnscmd
 7    - https://learn.microsoft.com/en-us/azure/dns/dns-zones-records
 8    - https://lolbas-project.github.io/lolbas/Binaries/Dnscmd/
 9author: '@gott_cyber'
10date: 2022-07-31
11modified: 2023-02-04
12tags:
13    - attack.discovery
14    - attack.execution
15    - attack.t1543.003
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection_img:
21        Image|endswith: '\dnscmd.exe'
22    selection_cli:
23        CommandLine|contains:
24            - '/enumrecords'
25            - '/enumzones'
26            - '/ZonePrint'
27            - '/info'
28    condition: all of selection_*
29falsepositives:
30    - Legitimate administration use
31level: medium

References

• Dnscmd

  

  Reference article for the dnscmd command, which is a command-line interface for managing DNS servers.

  
  Read More

• DNS Zones and Records Overview - Azure Public DNS

  

  Overview of support for hosting DNS zones and records in Microsoft Azure Public DNS.

  
  Read More

• Dnscmd on LOLBAS

  

  Dnscmd.exe is a living-of-the-land file containing unexpected functionality that can be abused by attackers; this page lists all its use cases.

  
  Read More

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