Yes. Old news. Do you know what you have to DO to actually become infected?

"A disk image will then start downloading, and (depending on the settings on your machine) may then mount and launch an installer which asks for your admin password.

Rule #1: Do not install software from untrusted sources, especially if that software comes as an installer package and requests your administrator's password! However, if you do proceed to run the installer..."

In other words, you have to activate it yourself. A trojan that rings the doorbell and asks you if it can come in. And please note the use of the word "may". Meaning, only if your machine settings allow it in the first place.