cannot remove brontok-bl worm

i’m using an avast home edition 4.8 and got this message on boot scan:

File C:\hiberfil.sys is infected by Win32:Brontok-BL [Wrm], Delete: Error 0xC0000043 {A file cannot be opened because the share access flags are incompatible.}

i tried deleting, moving it to chest and all the other options but it wont work. what should i do?

Got to start then Control panel then Power Options then Hibernate then un-check Enable hibernation then reboot and re-scan system.

The detected infection should be removed and you can enable Hibernation if you want.

Please, never post twice the same. Just double the effort of help.
http://forum.avast.com/index.php?topic=36743