/usr/ is in kde-telepathy-auth-handler 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libexec/
/usr/lib/x86_64-linux-gnu/libexec/ktp-auth-handler
/usr/share/
/usr/share/dbus-1/
/usr/share/dbus-1/services/
/usr/share/dbus-1/services/org.freedesktop.Telepathy.Client.KTp.SASLHandler.service
/usr/share/dbus-1/services/org.freedesktop.Telepathy.Client.KTp.ConfAuthObserver.service
/usr/share/dbus-1/services/org.freedesktop.Telepathy.Client.KTp.TLSHandler.service
/usr/share/doc/
/usr/share/doc/kde-telepathy-auth-handler/
/usr/share/doc/kde-telepathy-auth-handler/copyright
/usr/share/doc/kde-telepathy-auth-handler/changelog.Debian.gz
/usr/share/telepathy/
/usr/share/telepathy/clients/
/usr/share/telepathy/clients/KTp.ConfAuthObserver.client
/usr/share/telepathy/clients/KTp.SASLHandler.client
/usr/share/telepathy/clients/KTp.TLSHandler.client