Security company McAfee has released a new free DNS Check tool that help consumers to identify the risk of DNS malware and modify their DNS settings after servers are shut down by the FBI on July 9th.

DNSChanger is a trojan created by cybercriminals to redirect the Internet traffic of millions of unsuspecting consumers to websites where the thieves have profited from advertisements.

The new McAfee tool help users identify whether they have been affected by the DNSChanger and offers a free application to restore their Internet settings, if they have been infected.

McAfee Labs senior vice president Vincent Weafer said identifying and changing these settings manually can be difficult

"By providing a free tool that walks them through the process, we’re making it easy for consumers to fix their settings and stay connected. For us, this is part of our relentless focus on protecting and liberating consumers so that they may safely experience everything the Internet has to offer," Weafer said.

Computers infected with DNSChanger will no longer be able to access websites, email, chat, or social networking sites like Facebook after July 9th.

Domain Name System (DNS) converts user-friendly website names into the Internet protocol (IP) addresses that computers use to talk to each other.