DHCP Server Loaded the CallOut DLL

 1title: DHCP Server Loaded the CallOut DLL
 2id: 13fc89a9-971e-4ca6-b9dc-aa53a445bf40
 3status: test
 4description: This rule detects a DHCP server in which a specified Callout DLL (in registry) was loaded
 5references:
 6    - https://blog.3or.de/mimilib-dhcp-server-callout-dll-injection.html
 7    - https://technet.microsoft.com/en-us/library/cc726884(v=ws.10).aspx
 8    - https://msdn.microsoft.com/de-de/library/windows/desktop/aa363389(v=vs.85).aspx
 9author: Dimitrios Slamaris
10date: 2017/05/15
11modified: 2022/12/25
12tags:
13    - attack.defense_evasion
14    - attack.t1574.002
15logsource:
16    product: windows
17    service: system
18detection:
19    selection:
20        EventID: 1033
21        Provider_Name: Microsoft-Windows-DHCP-Server
22    condition: selection
23falsepositives:
24    - Unknown
25level: high

References

• (0x64 ∧ 0x6d) ∨ 0x69 ~ mimilib DHCP Server Callout DLL injection

  

  The new (as of 10.05.2017) version of mimilib (a DLL with a subset of mimikatz features) supports the DNS serverlevel plugin API and the DHCP server Callout plugin API. In this post I will quickly cover how to inject the DLL into DHCP service and how to detect it using Windows Eventlogs and Sysmon.

  
  Read More

• Event ID 1032 — DHCP General Availability

  

  Event ID 1032 — DHCP General Availability Article 02/02/2010 Applies To: Windows Server 2008 General availability of the Dynamic Host Configuration Protocol (DHCP) server refers to its ability to s...

  
  Read More

• How the DHCP Server Callout API Operates

  

  Microsoft DHCP Server maintains an internal table of events that, upon their occurrence in DHCP protocol processing, trigger third-party DLL function calls.

  
  Read More

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