/usr/lib/libopenvas_hg.so.2 is in libopenvas2 2.0.4-2.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libopenvas_hg.so.2.0.4
/usr/lib/libopenvas_hg.so.2.0.4