/usr/lib/linux-tools/4.13.0-26-lowlatency/usbip is in linux-tools-4.13.0-26-lowlatency 4.13.0-26.29~16.04.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.13.0-26-lowlatency/../../linux-hwe-tools-4.13.0-26/usbip