A new technique, named "DNS cache poisoning" was found in an attack on small number of DNS servers. When sending requests for google.com, ebay.com and weather.com, the poisoned cache redirects them to 7sir7.com, 123xxl.com and abx4.com, and attempts to install spyware.
Successful "DNS cache poisoning" puts false information in DNS servers and redirects them to hackers spoofed sites. These attack are rare, but very effective.
The new term "Pharming" is used for this next-generation "phishing" scam. Source