title: DHCP Callout DLL Installation
id: 9d3436ef-9476-4c43-acca-90ce06bdf33a
status: test
description: Detects the installation of a Callout DLL via CalloutDlls and CalloutEnabled parameter in Registry, which can be used to execute code in context of the DHCP server (restart required)
author: Dimitrios Slamaris
references:
  - https://blog.3or.de/mimilib-dhcp-server-callout-dll-injection.html
  - https://technet.microsoft.com/en-us/library/cc726884(v=ws.10).aspx
  - https://msdn.microsoft.com/de-de/library/windows/desktop/aa363389(v=vs.85).aspx
date: 2017/05/15
modified: 2021/11/27
logsource:
  category: registry_event
  product: windows
detection:
  selection:
    TargetObject|endswith:
      - '\Services\DHCPServer\Parameters\CalloutDlls'
      - '\Services\DHCPServer\Parameters\CalloutEnabled'
  condition: selection
falsepositives:
  - Unknown
level: high
tags:
  - attack.defense_evasion
  - attack.t1574.002
  - attack.t1112
