According to virustotal.com, this is a known threat to one anti-virus company. Avast has that domain listed as malicious.
For the report, see this: https://www.virustotal.com/url/b9643d3e8ea2f2492adb8cb0a8b86ab9c877c5493da57cf6ed8c8ffc65b209c2/analysis/1356923412/
The above results may change at anytime.
I got a red screen notification from Avast (free) 12/23/12 - how it blocked:
From Avast's site, I also got these:
Is this a known threat?
It was trying to attack my browser, Firefox.
Keep up the great work, Avast!!!