qemu-anti-detection
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zhaodice
QEMU still detected by hasp dongle drivers as virtual machine
Latest version still detected by HASP dongle drivers as virtual machine. All patches applied. Still no success. Can we fix it?
Actually, the RDTSC patch by WCharacter only applies when a VM is running, so it isn't too concerning. However, if you don't have a beefy computer, patching the code means recompiling the kernel which can be time consuming. And when you are at it, you may want to use a custom kernel like Linux-TKG. It is definitely worth it, though, as it improves both performance and responsiveness.
Actually, the RDTSC patch by WCharacter only applies when a VM is running, so it isn't too concerning. However, if you don't have a beefy computer, patching the code means recompiling the kernel which can be time consuming. And when you are at it, you may want to use a custom kernel like Linux-TKG. It is definitely worth it, though, as it improves both performance and responsiveness.
Pretty sure the RDTSC patch you linked drains performance since it works by causing vm-exits for rdtsc. Adjusting the tsc offset should give you better performance but increases the complexity. Here is an old example by h33p doing it with kernel hooks: kvm-rdtsc-hack
Cool, I haven't seen this one. It isn't a drop-in patch like the other one, but seems interesting. Thanks!
But I have to add that I've been using it for quite some time now, and I have never countered CPU issues. VMs always have other bottlenecks in my opinion especially disk IO. Perhaps I will measure the performance loss from this patch someday.