Win32:Patched-US[Trj]

What do you means “Win32:Patched-US[Trj]”?

My avast show me other information:

Object: C:\WINDOWS\system32\DRIVERS\tcpip.sys
Process: C:\Programmi\Awil Software\Avast5\AvastSvc.exe

Is Avast a itself Trojan? ???

(Is a red notice)