Users have been warned of a new virus that infects Excel files under the camouflage of a fantasy football worksheet.
Yagnuul-A is an Excel formula virus that infects .XLS spreadsheets and then drops an infected fantasy league file on to the user's hard drive.
The virus has been reported by security software company Sophos. Fantasy football-like leagues have been set up in offices across the country, and fans often keep track of how well they are doing by using Excel spreadsheets.
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“Every computer user needs to take great care not to fall foul of malware like the Yagnuul virus or they will find themselves paying the penalty,” said Graham Cluley, senior technology consultant for Sophos.
He said, “This is a virus of two halves - one part infects your existing Excel spreadsheets, while the other drops an infected file onto your drive. You may think you are just re-using someone else's harmless spreadsheet, but behind the scenes a virus may be preparing to strike.”
Sophos warned users to be careful about what files they opened on their computers.
Last week, Sophos reported on another football-related threat. It warned of a Trojan horse virus that has been spammed out over the internet. It poses as a wall-chart for the upcoming World Cup tournament in Germany.