W32/Fever is a Win32 worm.
It copies itself to the Windows system directory as "gp32.exe" and creates the registry entry
HKLM\Software\Microsoft\Windows\
CurrentVersion\RunServices = "gp32.exe"
so that the worm is run on start-up as a background process.
The worm may attach itself to emails.
The worm works on Windows 95/98/Me, Windows NT and Windows 2000.