A new mass-mailer known as W32/Famus <A HREF="http://www.esecurityplanet.com/alerts/article.php/3349871">tries to look like a Microsoft Excel spreadsheet file.</A> W32/Famus-A is a mass mailing worm for the Windows platform that copies itself to the system folder as the file PentagonSecret.xls.exe, where the second extension is several white space characters after the first, in an attempt to disguise itself as a Microsoft Excel spreadsheet file.