Sonar Bypass v2
The second iteration of the Sonar verification research — rebuilt from scratch with cleaner packet handling and better documentation.
What it is
Sonar Bypass v2 continues the original research: reproducing Sonar's Minecraft anti-bot verification from a plain Node.js process. v2 cleans up the packet handling, documents the stages better and keeps everything reproducible.
Highlights
- Rebuilt, cleaner packet handling
- Better documentation of the verification stages
- Pure Node.js on the raw socket
- Educational reference for how Sonar behaves on the wire
Why I built it
After the first bypass taught me how Sonar verifies clients, v2 was about doing it cleanly — readable packets, documented stages, and notes other researchers can actually follow.
Tech stack
Built with Node.js, Minecraft, Research. The complete source code is open on GitHub at github.com/SirYadav1/sonar-bypass-v2 — clone it, read it, fork it, and open issues if something breaks.
Related projects
If this one interests you, also look at Minecraft AFK Bot, AdwanceSNI 2.0, AdwanceSNI — or browse all projects by SirYadav. The source for everything lives on github.com/SirYadav1.
More from SirYadav1
Sonar Bypass v2 is one of many open-source projects by Sundram Yadav. If you found it useful, star it on GitHub — github.com/SirYadav1/sonar-bypass-v2 — and check the rest of the profile at github.com/SirYadav1 for network scanners, Minecraft research, bots and developer tooling. New projects ship regularly; the project index on this site stays up to date with every one of them.
About the author
Sundram Yadav — known online as SirYadav (GitHub: SirYadav1) — is a backend developer and security researcher from India. He builds open-source software in PHP, Node.js, Python and Go: network scanners, Minecraft protocol research, Android apps, Telegram bots and automation tooling. Everything on this page — and much more — lives on his GitHub repositories. Browse the full collection on the project index, or connect on Telegram and X (Twitter).