Akamai Diversity
Home > DNS

Recently in DNS Category

Fast Flux Botnet: Research Results

Just like that, another Akamai Edge has come and gone. If you were able to join us this year, I hope you had a chance to stop by my presentation on Threat Intelligence Insights: An In-Depth Analysis of a Fast Flux Botnet.

Service providers looking to enhance and secure the online experience for their residential and business subscribers often struggle to find solutions that are easy for their customers to configure and use - particularly when it comes to setting policies that carry across fixed, mobile and converged networks. This type of simple, seamless management is actually a key distinguishing feature of Nominum, now part of Akamai, solutions. And not just from a "here's what our products can do" perspective, but from a "here's how easily your customers can do this" perspective.

Akamai's Leading Role in the DNS Renaissance

In case you haven't been paying attention, an unlikely technology, the Internet's Domain Name System, or DNS, is experiencing a renaissance. For much of its existence, DNS has maintained a simple and singular function - to resolve Internet names to IP addresses. Over the past several years, however, DNS, or more specifically, the recursive DNS (rDNS) resolver, has assumed a number of new roles, made possible by the fact that it's used by almost every Internet-connected device. rDNS is now a services platform. It's a security agent. It's a tool for optimizing delivery of Internet content and offloading traffic from ISP backbone networks. In short, the people who best understand rDNS have not only figured out new ways to use it, they've figured out ways to monetize it.

Introduction to DNS Data Exfiltration

Written by Asaf Nadler and Avi Aminov

Spyware is a malicious software (malware) used to gather information about a person or organization without their consent. In a typical setting, a remote server, that acts as a command and control server (C&C), waits for an incoming connection from the spyware that contains the gathered information. Statistics reported by Avast estimate that nowadays over 100M types of spyware are active worldwide.

In the presence of network security products (e.g., firewalls, secure web gateways, and antiviruses), spyware must communicate with its C&C server over a covert channel, to prolong its operation. Among commonly used covert channels, the domain name system (DNS) protocol stands out.

A Productive Path to NFV

Provider networks continue to experience growth in traffic, which raises costs, without corresponding growth in revenues. Accommodating this growth and increasing complexity while managing costs is forcing CSPs to assess how they build and maintain their networks. Everyone agrees everything ultimately resolves to software and fortunately there's been considerable innovation that will support provider business imperatives.

Keeping up with DNSSEC

DNS was first conceived in 1983, back when one of the most memorable movie quotes of all time was popularized: "Go ahead, make my day" (Clint Eastwood in "Sudden Impact"). The internet as we know it today did not yet exist; however, ARPANET, its predecessor network, was the exclusive domain of a small group of academics and researchers, so no one gave much thought to security. A lot has changed.

Akamai's DNS Contribution to Internet Resiliency

Background

Akamai Technologies recently contributed its "Serve Stale" DNS algorithm to Version 9 of the Internet Systems Consortium's (ISC) Berkeley Internet Name Domain (BIND) open source Domain Name System (DNS) project.

As the Internet's most widely used DNS implementation, BIND operates ubiquitously throughout the Internet. The ongoing availability of answers from BIND servers is a critical element for the ongoing availability of the Internet for many users.

Infographic: How Botnets Work

With IoT on the rise, consumers are rightfully afraid of privacy invasions. But, infected devices can serve far more sinister purposes. Herewith, we breakdown the ways a botnet works.

Take a Bite out of Cybercrime by Analyzing New Core Domains

We just conducted our monthly Cyber Insider discussion, this time focusing on what deep analysis of new core domains reveals about new threats and zero-day malware. As a company that processes 1.7 trillion DNS queries a day and analyzes 100 billion queries a day from our global service provider customers, we are in a unique position to gain insights.

What makes a good "DNS Blacklist"? - Part 2

In "What makes a good 'DNS Blacklist'? - Part 1", we explored the background and factors that have gone into Akamai's thinking behind New security products like Enterprise Threat Protect (ETP). This article continues with a list of factors and questions to ask any DNS Threat Feed providers, including Akamai.

What should enterprises look for in the DNS Threat Policies?

DNS Threat Policies are more than a DNS Blacklist.  The term "DNS threat policy" refers to a combination of three factors: the reputation of the FQDNs or IP, the reference to the threat vector (C&C, downloader, etc),  and the action (NXDOMAIN, Null Response, Redirect to Remediation Page, Redirect to Tracker, etc). A DNS Threat Policy is more than a "threat feed." It is more than a "DNS blacklist.".

1 2 3 4 5 6 7 8