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mayo · Administrator Joined: 14 Jun 2009 Posts: 700

After gaining access to a host PC, the DNSChanger virus tries to modify the DNS (Domain Name Server) settings, which are essential for Internet access, to send traffic to malicious servers.
These poisoned web addresses in turn point traffic generated through infected PCs to fake or unsafe websites, most of them running online scams.
There are also reports that the DNSChanger virus also acts as a trojan, allowing perpetrators of the hack attack to gain access to infected PCs.
Read here:
http://www.thinkdigit.com/Internet/FBIs-op-on-DNSChanger-virus-may-knock_10057.html
How can you detect if your computer has been violated and infected with DNS Changer?
Read here:
http://www.dcwg.org/detect/