/usr/share/doc/mrtg/examples/ovmrtg/ is in mrtg-contrib 2.17.4-4.1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/mrtg/examples/ovmrtg/README
/usr/share/doc/mrtg/examples/ovmrtg/buildht
/usr/share/doc/mrtg/examples/ovmrtg/buildrtov
/usr/share/doc/mrtg/examples/ovmrtg/cfgmakerov
/usr/share/doc/mrtg/examples/ovmrtg/index
/usr/share/doc/mrtg/examples/ovmrtg/installov
/usr/share/doc/mrtg/examples/ovmrtg/installov.cmds
/usr/share/doc/mrtg/examples/ovmrtg/installov.pl
/usr/share/doc/mrtg/examples/ovmrtg/mrtgmenu
/usr/share/doc/mrtg/examples/ovmrtg/newrtrov.txt
/usr/share/doc/mrtg/examples/ovmrtg/ovadd
/usr/share/doc/mrtg/examples/ovmrtg/ovcols
/usr/share/doc/mrtg/examples/ovmrtg/ovcullfile
/usr/share/doc/mrtg/examples/ovmrtg/ovcvtfile
/usr/share/doc/mrtg/examples/ovmrtg/ovdel
/usr/share/doc/mrtg/examples/ovmrtg/oveval.txt
/usr/share/doc/mrtg/examples/ovmrtg/ovin
/usr/share/doc/mrtg/examples/ovmrtg/ovmrtg.pm
/usr/share/doc/mrtg/examples/ovmrtg/ovsho
/usr/share/doc/mrtg/examples/ovmrtg/ovsysnms
/usr/share/doc/mrtg/examples/ovmrtg/ovtgts
/usr/share/doc/mrtg/examples/ovmrtg/ovtst
/usr/share/doc/mrtg/examples/ovmrtg/ovupdate