That is certainly a scam. The Department of Justice does not act that way and whoever operates that site is preying on the fear of naive internet browsers.
In fact, after a review of different listings on the internet, it appears you may have a virus that is part of the scam on your computer - see http://forums.anvisoft.com/viewtopic-54-4861-0.html
Here is a warning about this scam and virus from the FBI - http://www.fbi.gov/news/stories/2012/august/new-internet-scam
Maury D. Beaulier
Attorney at Law
CALL 612-240-8005 for a Consultation. Disclaimer: Nothing in this email message creates an attorney client relationship absent a retainer agreement with this office. Any response to email inquiries should be considered general in nature and should not be relied upon as legal advice. You should always consult a lawyer in your state regarding your specific legal matter. Visit online at http://www.minnesotaLawyers.com
Totally bogus scam. Not real. Do not pay the $.
Call 612-210-0629 For a Free Consult. This is not legal advice. This site is only to be used for general information, not advice on what to do with your specific case.