Last Wendsday, Adobe came in and patched two of their best programs, Reader and Acrobat, but there seems to be a problem with it. Apparently the security hole was open for hackers for as long as 18-days and it has been exploited really hard in these several weeks.
The hackers were using malicious banner ads as a host for infected PDF, which will later infect you with Zonabec Trojan. The trojan will then deactivate your antivirus protection and will be in charge with modified search results and changing banner ads all over the place.
Adobe managed to get the problem fixed with their 8.12 update but knowing that it took them 18 days and they can't even share with us what they patches is a big question mark for me. It's not really a good sign to know that the company you're using a product from, knew of an exploit and couldn't take action faster. Much faster.
Symanted researcher Hon Lau, rethorically asked:
"With more and more of these attacks happening, how much longer will it be before people implicitly attach a higher risk association to PDF files and avoid them altogether?"
Knowing all of these, the big format popularity and the fact that there seem to be more and more threats to PDF that Adobe knew about, I'm already thinking seriously of staying on the bar for a while with PDF documents, until the waters clear a little bit.
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