dpkg -l | grep virtualbox
ii  unity-scope-virtualbox                      0.1+13.10.20130723-0ubuntu1                   all          VirtualBox scope for Unity
rc  virtualbox                                  5.0.32-dfsg-0ubuntu1.16.04.2                  amd64        x86 virtualization solution - base binaries
ii  virtualbox-dkms                             5.0.32-dfsg-0ubuntu1.16.04.2                  all          x86 virtualization solution - kernel module sources for dkms
ii  virtualbox-ext-pack                         5.0.32-0ubuntu1.16.04.2                       all          extra capabilities for VirtualBox, downloader.
rc  virtualbox-qt                               5.0.32-dfsg-0ubuntu1.16.04.2                  amd64        x86 virtualization solution - Qt based user interface