dpkg -l | grep virtualbox
ii  unity-scope-virtualbox                        0.1+13.10.20130723-0ubuntu1                all          VirtualBox scope for Unity
ii  virtualbox                                    5.0.10-dfsg-2ubuntu1                       amd64        x86 virtualization solution - base binaries
rc  virtualbox-guest-utils                        5.0.10-dfsg-2ubuntu1                       amd64        x86 virtualization solution - non-X11 guest utilities
rc  virtualbox-guest-x11                          5.0.10-dfsg-2ubuntu1                       amd64        x86 virtualization solution - X11 guest utilities
ii  virtualbox-qt                                 5.0.10-dfsg-2ubuntu1                       amd64        x86 virtualization solution - Qt based user interface
ii  virtualbox-source                             5.0.10-dfsg-2ubuntu1                       all          x86 virtualization solution - kernel module source