W32/Autorun-QF is a component of a worm that spreads via USB keys.

The worm spreads together with an autorun.inf file detected as W32/Autorun-AV.

W32/Autorun-QF may be installed with the filename desktop.dll. It may be installed together with a file (System)\winview.ocx.

More information can be found at this Sophos page.