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Wednesday, March 12, 2008

Infected Excel Files Exploit Known Hole

Security experts have warned that malicious Microsoft Excel documents are making the rounds via e-mail, exploiting an unpatched Excel vulnerability that has been known publicly since January.

"This Trojan is circulating through email messages that contain attached Excel files," US-CERT said in an advisory. "Known file names for these attachments are OLYMPIC.XLS and SCHEDULE.XLS. These files may also contain Windows binary executables that can compromise an affected system."

The bug affects Excel 2003 Service Pack 2, Excel Viewer 2003, Excel 2002, Excel 2000, and Excel 2004 for Mac, Microsoft said. Successful attacks give the attacker the same rights as the local user.

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