Not that that is anything new.
Reuters reports that Microsoft has announced that baddies are using vulnerabilities in Microsoft Office for Windows to recruit computers into botnets. The full story is here. An excerpt, including a link for help:
Hackers take advantage of the Office vulnerability by booby-trapping websites with malicious code that loads onto computers running Office software. Infected PCs are commandeered into a botnet, a network of hijacked computers. They are used for identity theft, spamming and other cybercrimes.
Microsoft did not say how many machines were attacked.
Users can prevent attacks by disabling functions within the Office software that allow it to work over the Web. Microsoft has posted a tool for doing that on its website — here.
Me, I use OpenOffice.