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swiftonsecurity/sysmon-config

5,515Audience · ops devopsComplexity · 2/5Setup · moderate

TLDR

A ready-to-use Sysmon configuration file for Windows that captures meaningful security events, new processes, network connections, file changes, with inline explanations for every setting, designed to be forked and customized for your environment.

Mindmap

mindmap
  root((sysmon-config))
    What it does
      Windows event monitoring
      Process and network logging
      Low performance impact
    How it works
      XML config for Sysmon
      Windows Event Log output
      Admin installation
    Customization
      Fork and adapt
      Tune out antivirus noise
      Inline comments guide
    Use cases
      Threat detection baseline
      Security team monitoring
      SIEM log ingestion
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Things people build with this

USE CASE 1

Deploy a baseline Sysmon configuration across Windows machines to start logging process launches, network connections, and file changes for threat detection.

USE CASE 2

Use the heavily commented XML as a learning guide to understand which Windows events matter for security monitoring and why each rule is included.

USE CASE 3

Fork the configuration and tune out antivirus and trusted software noise to reduce event volume before feeding logs into a SIEM.

USE CASE 4

Use as a starting point before adopting sysmon-modular for teams that need more exhaustive Windows event coverage.

Tech stack

XMLWindowsSysmon

Getting it running

Difficulty · moderate Time to first run · 30min

Must run Sysmon as administrator, requires environment-specific tuning to filter antivirus and trusted software noise before production rollout.

License information is not mentioned in the explanation.

In plain English

Sysmon is a free Windows tool from Microsoft that records detailed information about what programs are doing on your computer: things like new processes starting, network connections being made, and files being changed. By itself, Sysmon is just an engine. To tell it what to watch and what to ignore, you give it a configuration file in XML format. This repository provides one such configuration file, designed as a ready-to-use starting point that any Windows security team can fork and adapt. The configuration captures meaningful activity while keeping performance impact low. It focuses on system-level changes rather than authentication events, which Windows tracks separately through its own logging system. The XML file is heavily commented, with explanations throughout each section. This makes it useful both as a working configuration and as a guide for understanding what kinds of activity matter when looking for threats. You install it by running Sysmon as an administrator and pointing it at the file. After that, Sysmon writes events to the Windows Event Log, where your security tools or log management system can pick them up. Before rolling this out across a fleet of computers, you will need to test it in your own environment and tune it. Your antivirus software, for example, will likely generate a large volume of events that are not useful for threat detection, and you will want to filter those out. The configuration is structured to make that kind of adjustment straightforward. The project also expects software to be installed system-wide rather than in user directories, since user directories get extra monitoring. The project is meant to be forked and customized. The README points to a companion project called sysmon-modular for teams that want a more exhaustive approach, but this configuration covers the most practical monitoring starting points in a single file.

Copy-paste prompts

Prompt 1
Walk me through installing Sysmon on Windows with this config file as an administrator and confirm it's writing events to the Windows Event Log correctly.
Prompt 2
My antivirus is flooding the Sysmon event log with noise. Show me how to add an exclusion rule in this config file to filter out events from a specific process path.
Prompt 3
I want to forward Sysmon events to our SIEM. Explain what event types this configuration captures and how to set up Windows Event Forwarding to ship them to a central collector.
Prompt 4
Help me understand the difference between monitoring processes in user directories versus system directories in this Sysmon config and why user directories get extra scrutiny.
Prompt 5
Compare this sysmon-config to the sysmon-modular project, when should a security team use this simpler config versus adopting the modular approach?
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