DNS, the Domain Name System, is a critical foundational component of the modern Internet, linking IP addresses to domain names that users can reach.

Given DNS’ critical role in enabling the modern Internet, it’s also a target for attack, as well as a place where attacks and threats can be discovered.
Security vendor Infoblox publishes a quarterly DNS Threat Index, which is now out with fourth-quarter 2015 data, showing some interesting trends in the security landscape.

The big finding is that there is an increasing number of malicious domains being created, with 49 percent more malicious domains created in the fourth quarter of 2015 than in the fourth quarter of 2014, thanks in large part to the Angler exploit kit. On a quarterly basis, malicious domain creation grew 5 percent from the third quarter.
In terms of malicious domain creation by geography, Infoblox reported that the United States was the leading culprit, representing no less than 72 percent of malicious domains where there was a knowable country of origin for a given malicious domain.
In this slide show, eWEEK takes a look at the highlights of the 4Q15 Infoblox DNS Threat Index report.