[libvirt-users] vendor_id state='off' not working as expected

Hi All, I'm trying to counter VM detection methods for a malware sandbox, using Pafish as a benchmark tool. https://github.com/a0rtega/pafish I have <hyperv><vendor_id state='off'/></hyperv> defined in a Windows 7 domain on Ubuntu 17.10, but for some reason this just changes the hypervisor vendor to "Microsoft Hv" instead of the default "KVMKVMKVM" vendor. How can I remove the hypervisor vendor completely?