FundamentalsBeginnerFree labFree lab
Fundamentals · in-browser
Decode the Beacon
Beginner50 ptsEncodingAnalysis
Objective: Decode a Base64 string used in a fake C2 sample.
An alert shows this Base64 blob. Decode it to recover the flag.
Runs entirely in your browser. No Wireshark, Burp, Docker, or cloud accounts required. External academies (PortSwigger / TryHackMe) are optional next steps in the Academy library.
Challenge workspace
Q1lOQVJLU3toZWxsby9sYWJ9
Hint
Use the in-app decoder (atob) — no CyberChef needed.
Explanation
Base64 is encoding, not encryption. Analysts decode it constantly in phishing and C2.