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Detection rules › Sigma

DHCP Server Error Failed Loading the CallOut DLL

Status
test
Severity
high
Log source
product windows, service system
Author
Dimitrios Slamaris, @atc_project (fix)
Source
github.com/SigmaHQ/sigma

This rule detects a DHCP server error in which a specified Callout DLL (in registry) could not be loaded

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1574.001 Hijack Execution Flow: DLL
StealthT1574.001 Hijack Execution Flow: DLL

Event coverage

ProviderEventTitle
DHCP-ServerEvent ID 1031[EVENT_SERVER_CALLOUT_UNHANDLED_EXCEPTION] The installed server callout .dll file has caused an exception.
DHCP-ServerEvent ID 1032[EVENT_SERVER_CALLOUT_LOAD_EXCEPTION] The installed server callout .dll file has caused an exception. The .dll file couldn't be loaded.
DHCP-ServerEvent ID 1034[EVENT_SERVER_READ_ONLY_GROUP_ERROR] The DHCP service has failed to load one or more callout DLLs.

Rule body yaml

title: DHCP Server Error Failed Loading the CallOut DLL
id: 75edd3fd-7146-48e5-9848-3013d7f0282c
status: test
description: This rule detects a DHCP server error in which a specified Callout DLL (in registry) could not be loaded
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, @atc_project (fix)'
date: 2017-05-15
modified: 2022-12-25
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    product: windows
    service: system
detection:
    selection:
        EventID:
            - 1031
            - 1032
            - 1034
        Provider_Name: Microsoft-Windows-DHCP-Server
    condition: selection
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID:
        - 1031
        - 1032
        - 1034
    Provider_Name: Microsoft-Windows-DHCP-Server

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Provider_Nameeq
  • Microsoft-Windows-DHCP-Server corpus 2 (sigma 2)