Type: Backdoor
Size: Varies
System Affected: Windows98, 95, Me, 2000, Xp, NT

Characteristics :

1) Creates the following registry keys :

◊ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices

◊ HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

◊ %windir% or %system% copy of itself