/usr/bin/vbnc2 is in mono-vbnc 4.0.1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 | #!/bin/sh
exec /usr/bin/mono --debug $MONO_OPTIONS /usr/lib/mono/4.5/vbnc.exe /sdkpath:/usr/lib/mono/2.0/ "$@"
|