Hands-on with Wazuh SIEM: Security Monitoring, Log Analysis, and Threat Hunting

Basics of Wazuh

• Wazuh Crash Course | 2 Hour+ Free Course: https://lnkd.in/dQgmwpfR
• Wazuh Overview and Architecture: https://lnkd.in/dpG6iYuQ

Lab Setup

• Wazuh All-in-One Lab Setup: https://lnkd.in/d4TbFJau
• Wazuh Installation on Virtualbox: https://lnkd.in/ddD65zu3
• Wazuh Installation on Docker: https://lnkd.in/ddD65zu3
• Creating Custom Dashboards: https://lnkd.in/dZ-2CxhT

Log Analysis with Wazuh

• Log Ingestion on Wazuh: https://lnkd.in/dym9fFxq
• Windows Sysmon Log Analysis: https://lnkd.in/djvb9sZP
• Integrating Graylog with Wazuh: https://lnkd.in/d2BxixuY

Threat Detection

• Correlation Rules in Wazuh: https://lnkd.in/dHtXuXB5
• VirusTotal Integration with Wazuh: https://lnkd.in/dT6YnfpE
• Suricata IDS Integration: https://lnkd.in/dH4R4J-s
• Advanced Wazuh Rulesets: https://lnkd.in/dYFGbrZB

Incident Response

• Blocking SSH Brute-Force Attack: https://lnkd.in/d9eWmQUb
• Disabling a Linux User Account: https://lnkd.in/dAsW4jjt

Threat Hunting

• Threat Hunting Using Inventory Data: https://lnkd.in/dB97vg-f
• Threat Hunting with Wazuh FIM and Yara for Linux Endpoints: https://lnkd.in/dAwEkarW

Additional Resource

• Book: “Security Monitoring with Wazuh” (45% Discount on Amazon): https://lnkd.in/dQPpUWax

  You Should Know: Essential Wazuh Commands & Practices

Wazuh Installation (Linux)

 Install Wazuh manager (Ubuntu/Debian) 
curl -s https://packages.wazuh.com/key/GPG-KEY-WAZUH | sudo apt-key add - 
echo "deb https://packages.wazuh.com/4.x/apt/ stable main" | sudo tee /etc/apt/sources.list.d/wazuh.list 
sudo apt update 
sudo apt install wazuh-manager 
sudo systemctl enable wazuh-manager 
sudo systemctl start wazuh-manager 

Agent Deployment (Windows/Linux)

 Linux agent installation 
sudo apt install wazuh-agent 
sudo systemctl enable wazuh-agent 
sudo systemctl start wazuh-agent

Register agent with manager 
sudo /var/ossec/bin/agent-auth -m <WAZUH_MANAGER_IP> -A <AGENT_NAME> 

Log Analysis with Wazuh CLI

 Check agent status 
sudo /var/ossec/bin/agent_control -l

Search for alerts 
grep "alert" /var/ossec/logs/alerts/alerts.json | jq . 

Threat Hunting with YARA on Linux

 Install YARA 
sudo apt install yara

Scan for malware 
yara -r /path/to/malware_rules.yar /path/to/scan 

Blocking SSH Brute-Force Attacks

 Use Wazuh active response 
<active-response> 
<command>firewall-drop</command> 
<location>local</location> 
<rules_id>5710,5712</rules_id> 
</active-response> 

Disabling a Linux User Account

sudo usermod --expiredate 1 <username> 
sudo passwd -l <username> 

What Undercode Say

Wazuh is a powerful open-source SIEM and XDR platform for real-time threat detection, incident response, and compliance monitoring. By integrating tools like Suricata, YARA, and VirusTotal, security teams can enhance threat intelligence and automate responses. Key takeaways:

• Log analysis is critical for detecting anomalies.
• Active response helps mitigate attacks like brute-force attempts.
• Threat hunting with FIM (File Integrity Monitoring) and YARA improves detection.

For deeper learning, explore the Wazuh documentation and practice deploying agents, custom rules, and dashboards.

Expected Output:

A comprehensive guide on Wazuh SIEM deployment, log analysis, and threat hunting with practical commands and resources.

References:

Reported By: Ouardi Mohamed – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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