When I read this first time, I thought it is a joke, but it is not, so read carefully and check whether your are infected or not.
On July 9, 2012 Many users will loose their internet connections as there are nearly 350,000 virus infected machines worldwide, and the virus will start working on July 9 and will not get internet access by changing the DNS server.
The DNSChanger malware is a Trojan horse infection that at its peak affected approximately 4 million PC systems worldwide, with about 500,000 of those being in the United States. When installed, the malware changes the system's DNS server settings to point to a rogue DNS network set up by the malware developers.
To Check whether you are infected or not
1. Visit the website DCWG.org
2. Click on the URL (choose your language)
3. it will say you are affected or not, if you are affected it will give you instructions to clean the malware
This is really important, and please share this information with your friends and relatives.
Image is taken from FBI Website