/usr/lib/linux-tools/4.18.0-1007-azure/usbip is in linux-tools-4.18.0-1007-azure 4.18.0-1007.7~18.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.18.0-1007-azure/../../linux-azure-edge-tools-4.18.0-1007/usbip