Experts at SophosLabs...have warned users about a new virus that infects Excel files under the camouflage of a fantasy football worksheet. XF97/Yagnuul-A is an Excel formula virus that infects .XLS spreadsheets, dropping an infected file that helps workers create their own fantasy football league with other fans...

A new Microsoft Excel virus is targeting fantasy soccer league fans, luring them with an offer of worksheets to track the performance of their team....