DHCP Callout DLL Installation

Title: DHCP Callout DLL Installation
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)
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
Author: Dimitrios Slamaris
Date: 2017-05-15
modified:2023-08-17
Tags:

• -'attack.privilege-escalation'
• -'attack.persistence'
• -'attack.execution'
• -'attack.stealth'
• -'attack.defense-impairment'
• -'attack.t1574.001'
• -'attack.t1112'

Logsource:

• category: registry_set
• product: windows

Detection:
  selection:
    TargetObject|endswith:
      -'\Services\DHCPServer\Parameters\CalloutDlls'
      -'\Services\DHCPServer\Parameters\CalloutEnabled'

  condition:selection
Falsepositives:
  -Unknown
Level: high