[csdreamer7]

I wonder how feasible it would be for malware to inject networking support into FreeDOS? Drivers, a TCP/IP stack, not very familiar with how DOS is constructed compared to my studies on the modern Linux kernel.

[guerrilla]

I would think the hardest part would be knowing what NIC to target, otherwise it's just a matter of work.

[slim]

It's trivial. There's an opensource tcp/ip stack for dos. I used to use it back in 98 to connect to the internet with my 386sx