Do computer viruses affect all user accounts on a computer?

Do computer viruses affect all user accounts on a computer?

IF a virus affects a local user will that effect administrator account and vise-versa?

Viruses are all different and designed to do different things. The infection you were asking about in the other responder's message, "W32.Korgo.G", is actually a worm. It exploits a vulnerability in the LSASS.

After digging through some of the documentation on the worm at the Symantec site I can safely say this does affect all users on the machine.

Since it's a worm it may have affected other machines on your network as well.

When a virus, worm, trojan, rootkit, or any other type of malware is installed, the privileges of the user account that was initially infected come into play. Some malware takes advantage of exploits in operating systems and applications with higher privileges than the user and spreads that way throughout a machine. In other cases some malware may spread to a shared folder or networked resource where it can infect other users. Some will infect bios on the local machine. It really depends on the OS being used, the permissions of each user, the structures in place in the network and system where the infection takes place, and the method of infection.

This will depend on what the virus does.
But in most of the cases, it will affect all the user account. I cant go into more details without talking about a specific virus.