Yeah it does this to me, too.
Just started tonight.

It did a similar thing a few months ago, except that was with some .ini file in the mirc directory, and that was resolved after a few days.
This is worse because now it actually started deleting mirc.exe, forcing me to reinstall mirc.

I'm getting rid of this virus program because it obviously sucks, and i wouldn't want it to start finding non-existant viruses in any more important files, and deleting them too.
That could screw up the entire computer.