/usr/share/xen-tools/karmic.d/60-copy-host-files is in xen-tools 4.4-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/xen-tools/karmic.d/../common/60-copy-host-files
/usr/share/xen-tools/karmic.d/../common/60-copy-host-files