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January 08, 2007Microsoft Office Helping Spread Bot-Nets
The MS Office programs Excel, Outlook, PowerPoint, and Word are proving to be one of the main beachheads hackers use to gain control over computers and add to the growing bot-net problem. As reported by Brian Krebs on his Security Fix blog, an attack last month against a US based public utility came as a PowerPoint document of heartwarming reflections intended for the holiday.
Apparently, this much forwarded greeting, which had already been making the email forwarding rounds, was picked-up by what is believed to be a China based hacker syndicate, and the greeting was left totally intact, but the file was encoded with malware that would give control over the machine to anyone who opened the file. What’s most worrying, the PowerPoint files was not picked up as bad by the utility's anti-virus filter.
The attack is just another example of what is developing into one of the biggest problems for Microsoft. Microsoft patched a total of 41 critical vulnerabilities in Office products last year, accounting for 1/3 of all of Microsoft’s patches. Even more worrisome, none of the patches last year corrected three remaining vulnerabilities in Word, two of which Microsoft has noted hackers continue to actively exploit.
Therefore, this warning from Microsoft should be closely adhered to: "Do not open or save Microsoft Office files that you receive from untrusted sources or that you receive unexpectedly from trusted sources."
On another MS note, Microsoft’s unwillingness to acknowledge widespread weaknesses in any of their software, as well as their continuance to adhere to a somewhat outmoded monthly patch schedule, means that for 2006, Brian Kreb calculated that Internet Explorer was unsafe for 284 days last year, which means MS Explorer was only safe 22 percent of the time spent surfing the internet.
I guess that means you can surf the internet anytime you want, but you can only do it safely 22 percent of the time. That, then, is a computer catch-22.
Tags: Microsoft Office, Bot-net, PowerPoint
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