This seems like woefully naive virtue-signaling to me. I geo-block all traffic from Iran, N Korea, China and Russia specifically at my clients' firewalls because I have watched the logs and could clearly see IPs from each of these countries attempt connections to American businesses every minute of every day. Try to single out the offending IP and tomorrow it moves to another; you will spend the rest of your days adding to that block list. It is perfectly sensible to block the country entirely; and better yet - as I've made a standard for my clients - block the entire world, and only allow specific countries to talk to your firewall. Then you can add more granular blocks on top of this. If something gets blocked that shouldn't, that's not painful to adjust. I have no doubt there are many fine people in Russia, but that doesn't mean there's a single computer in Russia that has any business talking to mine.

>with some malicious code

Obviously not.