detection.wiki

Detection rules › Sigma

Sysmon Configuration Change

Status
test
Severity
medium
Log source
product windows, service sysmon
Author
frack113
Source
github.com/SigmaHQ/sigma

Detects a Sysmon configuration change, which could be the result of a legitimate reconfiguration or someone trying manipulate the configuration

MITRE ATT&CK coverage

TacticTechniques
Defense ImpairmentNo specific technique

Event coverage

ProviderEventTitle
SysmonEvent ID 16ServiceConfigurationChange

Rule body yaml

title: Sysmon Configuration Change
id: 8ac03a65-6c84-4116-acad-dc1558ff7a77
status: test
description: Detects a Sysmon configuration change, which could be the result of a legitimate reconfiguration or someone trying manipulate the configuration
references:
    - https://learn.microsoft.com/en-us/sysinternals/downloads/sysmon
author: frack113
date: 2022-01-12
tags:
    - attack.defense-impairment
logsource:
    product: windows
    service: sysmon
detection:
    selection:
        EventID: 16
    # To avoid FP just add
    # filter:
    #      ConfigurationFileHash: 'SHA256=The_Hash_Of_Your_Valid_Config_XML'
    # condition: selection and not filter
    condition: selection
falsepositives:
    - Legitimate administrative action
level: medium
regression_tests_path: regression_data/rules/windows/sysmon/sysmon_config_modification/info.yml

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID: 16