Hi! El Thu, Jul 06, 2006 at 03:18:14PM +0800, James Lau escribio: > My program is a utility for internet payment. It takes an important role in > the payment process to ensure security. One of the key functions is that > the program should detect which machine is paying. So while virtual machine > (like QEMU) is present, it can cheat the program. > Checking the hard disk model, cpu type, and other hardward informations > makes little sense. Because the users or the hackers can easily modify > these informations. So I need a QEMU internal checking method that hackers > can't easily bypass. >
Well, as others have argued, this is probably worthless. But there is a way to detect virtual machines under x86, see http://invisiblethings.org/papers/redpill.html But if you run qemu without direct instruction copying, it won't work (and qemu will run slower), because qemu will correctly emulate the unprivileged instructions. Daniel. _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
