How to Delete Autorun.inf virus from PEN DRIVE?

HI

My PEN DRIVE is infected with AUTORUN.INF virus
and it is hidden in pen drive and search for
f:attrib autorun.inf -s -h -r but fail to find

and i formated the whole PEN DRIVE but again it come back is their any software to remove this virus ,,,,,help needed

Regards
Meer Akbar Ali