virtualbox.org

Hi, if i get viruses in my VIRTUAL PC is it possible that viruses can damage my REAL PC? I don't do anything with that virtual pc, just web browsing.

If you use shared folders yes. Otherwise it shouldn't be possible at all.

A virus compromised VM is like any virus compromised machine behind your LAN firewall. There are various attacks that it can mount, but in general the thread level is materially lower than having a virus inside your host. As baf says, if you think that there is a risk of infection do not use folder sharing.

Also think about excluding your VDI extensions from the host virus scanner. This will aid VDI I/O performance. Also if your guest does get a virus then the host could end up quarantining the entire VDI which is not quite what you might want to do.