Manual disinfection of Sasser worm :
- first apply the Microsoft patch
MS04-011- kill "avserve.exe" or "avserve2.exe" process with Task Manager
- delete C:\WINDOWS\avserve.exe and/or C:\WINDOWS\avserve2.exe
- run regedit.exe and go to {SOFTWARE\Microsoft\Windows\CurrentVersion\Run}
and delete key(s) with avserve.exe and/or avserve2.exe
- then reboot your system
That's all