It is a fairly typical virus in that it spreads primarily through email, but it also uses file sharing utilities to copy itself. It copies itself to various directories and shared folders. In one interesting twist, it attempts to copy itself to C:\WINDOWS\FVProtect.exe. The name would make many people (including otherwise technically savvy people) think this program was actually part of some antivirus utility. It also copies itself to C:\WINDOWS\userconfig9x.dll. Again, it would appear to be a system file, thus making people less likely to delete it. What is it?