Trojan-Spy.Win32.Agent.amhu [Kaspersky Lab] is known to be created as:
%System%\dllcache\userinit.exe
%Temp%\mousehook.dll
%Temp%\ntdll64.dll
Notes:
%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).