Adobe investigating attacks on PDFs using zero-day flaw
FireEye warns the world to check before you click
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Vulnerability researchers at FireEye are reporting that Adobe's Reader software has a zero-day flaw that hackers are already exploiting in the wild.
You've been pwned (click to enlarge)
The flaw is found in Adobe Reader 9.5.3, 10.1.5, and 11.0.1 and involves sending a specially crafted file to the target. Once opened, the malware installs two DLLs – one that shows an error message and opens a decoy PDF document, and a second that opens a backdoor to allow the code to communicate with a remote server.
"We have already submitted the sample to the Adobe security team. Before we get confirmation from Adobe and a mitigation plan is available, we suggest that you not open any unknown PDF files," said the FireEye team in a blog post.
Adobe has responded with a brief blog post acknowledging that the problem has been noted and is being investigated further. No doubt its security engineers will be burning the midnight oil to investigate the issue and try and find a workaround or patch.
Those poor devils are having a very busy time of it this month. Last week Adobe rushed out two emergency patches for Flash after attackers started using them in active attacks. But while most people can get by without Flash, PDFs are another matter – by some estimates, Reader is on 90 per cent of PCs in the Western world.
Hackers realize this, of course, and Adobe's products have been a primary attack vector for years now. And it's not just Adobe having problems – the popular Foxit PDF reader plugin for web browsers got a zero-day exploit of its own in January that took nearly two weeks to fix. ®
COMMENTS
Re: Simple solution (if you have Chrome)...
Chrome?
C'mon this is the Reg, less of the spyware.
there are a whole bunch of these zero days
we just were spear-phished with some very obfuscated Adobe pdf stream objects, plus the vxers helpfully threw in a handful of other discrete .doc viruses in the .rar blob folder. Thankfully we've successfully taught our main 'target' users what this years' bad things look like.
None of the antivirus programs that I've scanned the pdfs with have yet remarked that they are plausible/valid documents which have been hollowed-out and stuffed with trojans.
The code page & iso font codes probably indicate China, but we inevitably start the slippery smoke and mirrors slope of attribution...as I'd use 'fake' attributes if I was the USA hacking team
Re: Couldn't have said it better myself..
And even if the BBC wrote their s/w from scratch there still would be zero day attacks because it would be a popular program used by many naive users and so a worthwhile target for hackers to investigate.
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