/usr/lib/mono/4.5/Microsoft.VisualBasic.dll is in libmono-microsoft-visualbasic11.0-cil 3.0~pre20130627.4dcc70f-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/mono/4.5/../gac/Microsoft.VisualBasic/11.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll