Microsoft last Friday encouraged Windows users to barricade on-going approaches versus Adobe's well-known PDF viewer by deploying one of Microsoft's enterprise tools. Adobe recalled Microsoft's advice, stating the Enhanced Migration Experience Toolkit (EMET) would block attacks directing Reader and Acrobat.

Called scary and clever, the in the way exploit went public last week when security researcher Mila Parkour reported it to Adobe following analyzing a rogue PDF document tied to spam. Adobe first admonished users Wednesday of the terror, but at the time gave users no advice on how to defend themselves till a patch was ready.

Microsoft stepped in on Friday. "The beneficial news is that if you have EMET enabled. it blocks this exploit," stated Fermin Serna and Andrew Roths, two engineers with the Microsoft Security Response Center (MSRC) in an entry on the group's blog. EMET, which Microsoft upgraded to version 2.0 earliest this month, is a makeshift planned to keep older applications ensure until companies upgrade to up-to-date, and theoretically securer, edition of those programs.