/usr/include/openvas/misc/ is in libopenvas-dev 8.0.8-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/openvas/misc/arglists.h
/usr/include/openvas/misc/bpf_share.h
/usr/include/openvas/misc/ftp_funcs.h
/usr/include/openvas/misc/internal_com.h
/usr/include/openvas/misc/kb.h
/usr/include/openvas/misc/network.h
/usr/include/openvas/misc/nvt_categories.h
/usr/include/openvas/misc/openvas_auth.h
/usr/include/openvas/misc/openvas_logging.h
/usr/include/openvas/misc/openvas_proctitle.h
/usr/include/openvas/misc/openvas_server.h
/usr/include/openvas/misc/openvas_uuid.h
/usr/include/openvas/misc/pcap_openvas.h
/usr/include/openvas/misc/plugutils.h
/usr/include/openvas/misc/popen.h
/usr/include/openvas/misc/prefs.h
/usr/include/openvas/misc/radius.h
/usr/include/openvas/misc/www_funcs.h