Network Security Monitoring Masterclass | TryHackMe | SOC Level 1 2025

This mega‑video combines six essential TryHackMe rooms into a complete introduction to Network Security Monitoring (NSM). According to the official module description, this path teaches how to monitor network perimeters, analyze traffic, and detect attacker activity such as MITM, network discovery, and data exfiltration. We begin with Network Security Essentials, where you learn how networks function, how defenders gain visibility, and how to analyze firewall, IDS, and VPN logs to identify suspicious behavior.

Next, we move into Network Discovery Detection, covering internal vs external scanning, horizontal vs vertical scans, and how to detect reconnaissance using logs, CSV exports, and Zeek/Kibana analysis. From there, we explore Data Exfiltration Detection, learning how attackers steal data using DNS tunneling, FTP, HTTP POST exfiltration, and ICMP payloads — and how to detect these patterns in PCAPs and SIEM logs. Then we dive into MITM Detection, where you analyze ARP spoofing, DNS spoofing, and SSL stripping attacks using Wireshark and Splunk to reconstruct the full attack chain.

After that, we cover IDS Fundamentals, learning how intrusion detection systems work, how signatures are structured, and how IDS tools fit into SOC workflows.

Finally, we wrap up with Snort, where you write and test detection rules, analyze malicious traffic, and use Snort to identify anomalies and real‑time threats.

🔍 What you’ll learn: • How to monitor and protect network perimeters • How to detect reconnaissance and scanning activity • How to identify data exfiltration across multiple protocols • How to detect MITM attacks using ARP, DNS, and HTTP indicators • How IDS systems work and how Snort detects threats • How SOC analysts correlate logs, PCAPs, and alerts to confirm attacks

🚀 Try the rooms yourself: • Network Security Essentials: https://tryhackme.com/room/networksecurityessentials • Network Discovery Detection: https://tryhackme.com/room/networkdiscoverydetection • Data Exfiltration Detection: https://tryhackme.com/room/dataexfildetection • MITM Detection: https://tryhackme.com/room/mitmdetection • IDS Fundamentals: https://tryhackme.com/room/idsfundamentals • Snort: https://tryhackme.com/room/snort

FOR EDUCATIONAL PURPOSES ONLY

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