Near zero. In fact, this method now automatically flags the student. 2.4 Virtual Machine (VM) / Sandboxie Claim: Run the quiz inside a virtual machine (VMware, VirtualBox) so that host machine resources (notes, browser, chat apps) are accessible without the firewall detecting them.
VU’s firewall actively blacklists known VPN exit nodes (IP ranges belonging to NordVPN, ExpressVPN, etc.). Furthermore, the LMS performs WebRTC and DNS leak tests. If a VPN is detected, the quiz immediately shows: “Unstable network environment. Contact admin.” vu quiz firewall bypass
DNS tunneling is extremely slow (suitable only for text commands) and requires a dedicated external server. It is completely impractical for a JavaScript-heavy, image-loaded VU quiz. Moreover, the firewall monitors DNS traffic frequency; unusual volumes get instantly blocked. Near zero
This technique worked for a brief period (2019–2021). However, current VU quizzes include VM detection scripts that check for hypervisor signatures, virtual GPU drivers, and abnormal timing loops. If a VM is detected, the quiz terminates. VU’s firewall actively blacklists known VPN exit nodes