since those are different between the two OSes.
Given that, how can they possibly be a virus? It's not like they can reproduce without writing to the disk, and writing to the disk is a system call in every OS.
You said programs, not viruses, but even normal non-virus programs have to do input or output to actually *do* anything -- and I/O is a syscall thing too. (You can do I/O at the BIOS level without the help of the OS, but that won't work in Linux because AFAIK nobody has permission to run BIOS interrupts but root, and maybe not even root.) |