Can anything that lives in that firewalled environment reach out to the internet or have stuff reach in? If so, it’s only a matter of time before something gets popped and it’s a bastion to access everything else behind the firewall.
This isn’t even nation state level attacks, it’s pretty standard behavior for botnets and ransomware.
Is the scenario here that they're already compromised with a relay between outside and inside that doesn't need the VB6 app, and then they can compromise the VB6?
Extra malicious hosts are never great but this isn't exactly a dealbreaker.
This isn’t even nation state level attacks, it’s pretty standard behavior for botnets and ransomware.