C2 Detection – Command & Carol | AoC 2025 Day 22 | TryHackMe | Beginner Friendly скачать в хорошем качестве

C2 Detection – Command & Carol | AoC 2025 Day 22 | TryHackMe | Beginner Friendly

Advent of Cyber 2025 – Day 22: Command & Carol! Something is quietly talking back to the outside world… and it’s not Santa 🎄📡 In today’s challenge, we step into the role of a Blue Team analyst investigating suspicious network traffic. Hidden inside a large PCAP are signs of Command & Control (C2) communication — long‑lived connections, strange domains, unusual DNS behaviour, and covert data transfers. To uncover it all, we use Zeek and RITA (Real Intelligence Threat Analytics) — powerful tools used by real SOC teams for threat hunting. In this walkthrough, we cover: • What Command & Control (C2) traffic looks like on a network • How Zeek converts raw PCAPs into structured network logs • How RITA analyzes Zeek logs to detect beaconing and C2 patterns • Using threat modifiers to assess severity and likelihood • Identifying suspicious domains, IPs, and long‑running connections • How threat intel feeds strengthen network investigations This challenge highlights how defenders detect malware communication even when payloads are encrypted, using behaviour instead of signatures. Everything is explained clearly and step‑by‑step so beginners can follow along confidently and understand modern network threat hunting. Follow the AOC 2025 playlist to keep learning a new cybersecurity skill every day this December! 🎄🔐✨ #adventofcyber #aoc2025 #tryhackme #C2Detection #blueteam #threathunting #Zeek #RITA #cybersecurityforbeginners #infosec