How to set Virtual Network

[Filip's World]

I want to test WannaCry, but I need to create virtual network.
My virtual network need to follow these steps:

Network is isolated, because I don't want to help WannaCry with spreading.
Machines have differeant IP addresses, because WannaCry don't want to infect same PC again.
Machines can see each other, because WannaCry need to see other virtual machines to infect.

What I need to do in Network settings on Virtual Box?

[GuiltySpark]

In VirtualBox or whichever virtual machine you're using, make sure bi-directional sharing is off (not selected) as this will infect your host machine.

I think you may have to select Internal networking instead of any other to add protection to your host network.

But don't quote me on any of this, do your research into setting up a virtual malware lab as I'm sure there are a ton of settings that need to be assessed.

[Britec]

Very important "Make sure your network card is set to Host Only"
Turn off any sharing between virtual machine and you machine.

This will help you understand network card settings

This guy has done video that might help you