are you infected with DNS changer malware [ security ]

INTRO ( source f-secure ) 

DNSChanger is a trojan that will change the infected system's Domain Name Server (DNS) settings, in order to divert traffic to unsolicited, and potentially illegal sites.
The trojan is usually a small file (about 1.5 kilobytes) that is designed to change the 'NameServer' Registry key value to a custom IP address. This IP address is usually encrypted in the body of a trojan. As a result of this change a victim's computer will contact the newly assigned DNS server to resolve names of different webservers.

Top DNS Changer Infections by Country

+----+------------+
| cc | unique_ips |
+----+------------+
| US |      69517 |
| IT |      26494 |
| IN |      21302 |
| GB |      19589 |
| DE |      18427 |
| FR |      10454 |
| CN |      10304 |
| ES |      10213 |
| CA |       8924 |
| AU |       8518 |
| MX |       7054 |
| AR |       6078 |
| BR |       6074 |
| JP |       5867 |
| PL |       4916 |
| RU |       4383 |
| HU |       4021 |
| TR |       3884 |
| TH |       2941 |
| CZ |       2134 |
| CL |       2004 |
| GR |       1886 |
| NL |       1733 |
| BE |       1721 |
| PK |       1682 |
+----+------------+

link : http://www.dcwg.org/top-dns-changer-infections-by-country/

As Posted on  FBI site check your pc

https://forms.fbi.gov/check-to-see-if-your-computer-is-using-rogue-DNS 

http://www.dns-ok.us/

http://www.dns-ok.de/

http://www.dns-ok.fi/

http://www.dns-ok.ax/

http://www.dns-ok.be/

http://www.dns-ok.fr/

http://www.dns-ok.ca/

http://www.dns-ok.lu/

http://dns-ok.nl/ Dutch/English SIDN

get the all related info  http://www.fbi.gov/news/stories/2011/november/malware_110911/DNS-changer-malware.pdf  

as posted in details on  f-secure blog : 

http://www.f-secure.com/v-descs/trojan_osx_dnschanger.shtml 

http://www.f-secure.com/v-descs/dnschang.shtml 

other resources and link 

http://news.discovery.com/tech/dns-changer-fbi-warning-july-9-doomsday-120426.html