Wazuh on pyToshka's DevSecOps Blog

Wazuh Rule Static Analysis: Linter Evolution

ping@pytoshka.me (pyToshka) — Sat, 28 Mar 2026 00:00:00 +0000

“Wazuh Static Analysis” series:

Part 1: Decoders - decoder XML validation
Part 2: Rules (you are here) - rule validation and cross-type checking

In Part 1 we built a linter for Wazuh decoder XML files - a tool that validates structure, regex/order consistency, and parent-child decoder chains. But decoders are only half of the event processing pipeline. Decoders extract fields from raw logs, while rules decide what to do with those fields: generate an alert, escalate a threat level, or trigger an automated response. An error in a rule - a missed alert or a false positive - can be more dangerous than a decoder misconfiguration.

Wazuh MCP Server: Claude Desktop + OpenSearch (Part 2)

ping@pytoshka.me (pyToshka) — Mon, 23 Mar 2026 00:00:00 +0000

Introduction

In Part 1 we connected AWS Bedrock Claude to the Wazuh Dashboard chat via ML Commons. That approach works well for analysts working inside the Wazuh UI. In this part we open a second channel: Model Context Protocol (MCP), which allows any compatible client - Claude Desktop, custom applications, CI pipelines - to query Wazuh Indexer data through a standardized tool interface.

Wazuh + AWS Bedrock: AI Security in Docker (Part 1)

ping@pytoshka.me (pyToshka) — Mon, 16 Mar 2026 00:00:00 +0000

Introduction

In the previous article we embedded a local Ollama model directly into the Wazuh Dashboard chat via ML Commons. That approach provides full control over data with no cloud dependencies. In this series we take a parallel path: using AWS Bedrock - specifically Claude Sonnet 4.5 - as the inference backend, while all security data stays strictly within the local Docker network.

Static Analysis Tool for Wazuh Decoder XML Files

ping@pytoshka.me (pyToshka) — Tue, 17 Feb 2026 00:00:00 +0000

“Wazuh Static Analysis” series:

Part 1: Decoders (you are here) - decoder XML validation
Part 2: Rules - rule validation and cross-type checking

Wazuh decoder XML files define how raw log lines are parsed into structured security events. A misconfigured decoder – a missing <order> element, an orphaned parent reference, or a regex group mismatch – can silently drop critical fields from alerts, leaving blind spots in your SIEM pipeline. Manual code review catches some of these issues, but it does not scale across hundreds of decoder files shipped with Wazuh or maintained by your organization.

Ollama in Wazuh Dashboard: AI Security Analysis

ping@pytoshka.me (pyToshka) — Wed, 21 Jan 2026 00:00:00 +0000

Introduction

Integrating local language models directly into the Wazuh interface opens fundamentally new capabilities for information security teams. Unlike cloud-based AI solutions, Ollama enables security event analysis entirely within an organization’s isolated infrastructure, eliminating the transmission of confidential data beyond the network perimeter. Embedding an AI assistant into the Wazuh dashboard provides SOC analysts with instant access to intelligent alert interpretation, automatic incident correlation, and response recommendation generation directly within the workflow context. This approach significantly reduces the time required for initial threat analysis and decreases the cognitive load on specialists, allowing them to focus on strategic decision-making instead of routine event processing. Meanwhile, full control over the model and data remains within the organization, which is critically important for regulatory compliance and internal security policies.

Joining the Wazuh Ambassador Program

ping@pytoshka.me (pyToshka) — Thu, 11 Dec 2025 00:00:00 +0000

I’m excited to announce that I have officially joined the Wazuh Ambassador Program. This is a significant milestone in my journey with open-source security, and I’m honored to represent and contribute to a platform that has become central to my professional work.

My Journey with Wazuh

My path with host-based intrusion detection started long before Wazuh existed – with OSSEC, its predecessor. When Wazuh emerged as a fork and began evolving into the comprehensive security platform it is today, I transitioned along with it. That was over 10 years ago, and Wazuh has been an integral part of my security infrastructure work ever since.

Two LLM Security Assistants for Wazuh and AWS Analysis

ping@pytoshka.me (pyToshka) — Tue, 07 Oct 2025 00:00:00 +0000

When Your SOC Analyst Can’t Keep Up (Or Just Needs a Break)

Let’s be honest: analyzing thousands of security events every day isn’t the most exciting job.

Wazuh LLM: Fine-Tuned Llama 3.1 for Security Analysis

ping@pytoshka.me (pyToshka) — Thu, 02 Oct 2025 00:00:00 +0000

Introducing Wazuh LLM: Why Specialized Security Analysis Matters

In the cybersecurity world, SOC specialists deal with massive streams of security events daily. Analyzing each alert requires deep knowledge, experience, and time. That’s why I created a specialized language model to assist security analysts in their day-to-day operations.

Boosting Container Image Security Using Wazuh and Trivy

ping@pytoshka.me (pyToshka) — Fri, 28 Mar 2025 00:00:00 +0000

This article draws inspiration from the Wazuh blog post on enhancing container image security with Wazuh and Trivy.

Containerization has revolutionized software development and deployment, offering scalability and efficiency.

However, this agility can introduce security risks if container images aren’t properly secured.

Vulnerabilities within these images can expose your entire system to threats. This is where the combined power of Wazuh and Trivy comes in.

These open-source tools provide a comprehensive solution for boosting your container image security, ensuring your applications are protected from the ground up.

RAG for Wazuh Documentation: Step-by-Step Guide, Part 2

ping@pytoshka.me (pyToshka) — Wed, 05 Mar 2025 00:00:00 +0000

Related Reading:

Wazuh Integration with Ollama Series - Learn how to integrate Wazuh with Ollama
Wazuh LLM Security Event Analysis - Specialized model for Wazuh events

Prerequisites and Environment Setup

For local RAG development, ensure you have the following requirements:

RAG for Wazuh Documentation: Step-by-Step Guide, Part 1

ping@pytoshka.me (pyToshka) — Sun, 02 Mar 2025 00:00:00 +0000

Introduction to RAG

Retrieval-Augmented Generation (RAG) is a method that allows the use of information from various sources to generate more accurate and useful responses to questions.

Enhancing Wazuh with Ollama: Cybersecurity Boost (Part 4)

ping@pytoshka.me (pyToshka) — Sat, 01 Mar 2025 00:00:00 +0000

Continuing the Series: Integrating a Wazuh Cluster with Ollama - Part 4. Configuration and Implementation

Related: Check out our Wazuh LLM fine-tuned model for specialized security event analysis.

Enhancing Wazuh with Ollama: Cybersecurity Boost (Part 3)

ping@pytoshka.me (pyToshka) — Thu, 27 Feb 2025 00:00:00 +0000

Wazuh and Ollama: Part 3. Creating Integration Between Your Wazuh Cluster and Ollama

Wazuh offers vast and nearly limitless possibilities for integration with various systems. Even if a specific feature is missing, you can always create your own custom integration.

Enhancing Wazuh with Ollama: Cybersecurity Boost (Part 2)

ping@pytoshka.me (pyToshka) — Wed, 26 Feb 2025 00:00:00 +0000

Wazuh and Ollama: Part 2. Deploying the Wazuh Cluster

Now it’s time to set up Wazuh, which we will integrate with Ollama.

Enhancing Wazuh with Ollama: Cybersecurity Boost (Part 1)

ping@pytoshka.me (pyToshka) — Mon, 24 Feb 2025 00:00:00 +0000

Introduction

Welcome to the first part of our guide on enhancing Wazuh with Ollama!

How to Set Up a Custom Integration between Wazuh and MARK

ping@pytoshka.me (pyToshka) — Tue, 17 Dec 2024 00:00:00 +0000

Introduction

Integrating Wazuh SIEM with MARK (Mitigation Anomaly Revelation Keeper) enables automated threat detection and enriches security alerts with intelligence data. This guide walks you through setting up a custom integration for enhanced SOC operations.

Meet me

ping@pytoshka.me (pyToshka) — Mon, 01 Jan 0001 00:00:00 +0000

Professional Summary

Senior Site Reliability Engineer with 14+ years building, scaling, and maintaining critical infrastructure across diverse technology environments.