Well it seems to be the week of virus alerts. This one from Slashdot popped up and caught my attention pretty quick.
I guess the old “know what you are installing” really kicks in here as well. I use Greasemonkey for a few minor scripts.
BitDefender has updated its products to detect it, and other vendors will likely follow suit quickly, Canja said. Users could avoid it by only downloading signed, verified software, but that’s a measure that restricts the usability of a PC, he said.
The malware is not present in Mozilla’s repository of add-ons, Canja said. Mozilla had taken steps to ensure that its official site hosting add-ons — also called extensions — are free from malware.
So it boils down to, keep your antivirus definitions updated and only download from trusted locations as much as possible. If a download looks fishy, just don’t.