By William Jackson
The scheduled shutdown of DNS servers established by the FBI as a safety net for computers infected with DNSChanger malware took place July 9 without creating major problems for users or their Internet service providers.
According to the latest figures from the FBI, about 42,000 unique IP addresses from the United States, and about 211,000 unique addresses worldwide, still were connecting with the servers as of July 8. Because the same address could be used by more than one device, the actual number of users affected by the shutdown could be larger.
Although the numbers are large, they represent a sharp drop from the millions of computers believed to have been infected when the criminal ring responsible for the malware was broken up by U.S. and European law enforcement in November. As recently as late June, more than 300,000 unique IP addresses still were communicating with the temporary servers worldwide, about 70,000 of them in the United States.