Threat Intelligence

Dotless Domains Considered Harmful, Says IAB

In light of recent controversies around the implementation of dotless domains, the Internet Architecture Board (IAB) has released a statement calling the practice harmful. From the executive summary: "It has come to the attention of the IAB that there are proposals for so-called "dotless" domains in the root zone, and that some existing top-level domains (TLDs) are already operating in such a mode. TLD operators of dotless domains are intending that single label names -- those containing no dots -- resolve to the TLD itself, rather than be resolved locally, within the context of the local site at which the user resides." more

Standing Up for a Safe Internet

Back when I started working in this industry in 2001, ICANN was small, the industry was tight, and things moved slowly as interest groups negotiated a balance amongst the impacts of change. Change often meant added overhead and, at the very least, a one-time cost effort to implement on the commercial side. Registries and registrars preferred to be hands-off when it came to how their domains were being used. But e-crime became big business during the 2000s. more

What Smaller Institutions Can Learn from DDoS Attacks on Big Banks

Since last fall, several waves of distributed denial of service (DDoS) attacks have targeted major players in the U.S. banking industry. JPMorgan Chase, Wells Fargo and PNC were among the first to sustain intermittent damage. Eventually, the top 50 institutions found themselves in the crosshairs... In the months to come, security experts would praise the banks' collective response, from heightened DDoS protection to candid customer communications.. these larger institutions have learned some painful lessons that smaller firms might heed as they seek to minimize risks. more

Internet Infrastructure: Stability at the Core, Innovation at the Edge (Part 2 of 5)

For nearly all communications on today's Internet, domain names play a crucial role in providing stable navigation anchors for accessing information in a predictable and safe manner, irrespective of where you're located or the type of device or network connection you're using. Over the past 15 years hundreds of millions of domain names have been added to the Internet's Domain Name System (DNS), and well over two billion (that's Billion!) new users, some ~34 percent of the global population, have become connected. more

Google Data on State of Web Security

As part of its Transparency Report, Google recently released large amount of data related to unsafe websites. Google groups unsafe websites into two main categories: Malware and Phishing sites. more

Introduction: New gTLD Security and Stability Considerations (Part 1 of 5 )

Verisign recently published a technical report on new generic top-level domain (gTLD) security and stability considerations. The initial objective of the report was to assess for Verisign's senior management our own operational preparedness for new gTLDs, as both a Registry Service Provider for approximately 200 strings, as well as a direct applicant for 14 new gTLDs... However, in cataloging internal and external risks related to the new gTLD program, we found several far-reaching and long-standing issues that need to be further explored and/or resolved with varying levels of urgency. more

Jugaad Innovation and Applications of DNSSEC

It would be one of the ironies of global technology development that the West has effectively so far followed a Jugaad principle of "good enough" innovation for DNS security, whereas India could well embrace all the latest advances in DNS security as its Internet economy grows. Like most other protocols from the early Internet, the DNS protocol was not designed with security built in. For those protocols, security services were typically either implemented at a different layer of the protocol stack, or were added on later. more

How to Prepare for the Day When Your Domain(s) Are Misbehaving

For a number of years, there have been many different high profile incidents where major websites were defaced, taken offline, or crippled due to issues related to their domain registration. Last night, there was an incident where several high profile domains went offline due to issues at their registrar, and they are now coming back online after what I am sure was a few crazy hours for their operations teams and management. more

Multi-Layer Security Architecture - Importance of DNS Firewalls

In today's world with botnets, viruses and other nefarious applications that use DNS to further their harmful activities, outbound DNS security has been largely overlooked. As a part of multi-layer security architecture, a DNS Firewall should not be ignored. After serving as a consultant for multiple organizations, I have encountered many companies that allow all internal devices to send outbound DNS queries to external DNS servers - a practice that can lead to myriad problems. more

Bypassing Geo-Locked BYOD Applications

In the wake of increasingly lenient bring your own device (BYOD) policies within large corporations, there's been a growing emphasis upon restricting access to business applications (and data) to specific geographic locations. Over the last 18 months more than a dozen start-ups in North America alone have sprung up seeking to offer novel security solutions in this space - essentially looking to provide mechanisms for locking application usage to a specific location or distance from an office, and ensuring that key data or functionality becomes inaccessible outside these prescribed zones. more

Arrest Made in Connection to Spamhaus DDoS Case

According to a press release by the Openbaar Ministerie (the Public Prosecution Office), a dutch man with the initials SK has been arrested in Spain for the DDoS attacks on Spamhaus. more

Massive Spam and Malware Campaign Following Boston Tragedy

On April 16th at 11:00pm GMT, the first of two botnets began a massive spam campaign to take advantage of the recent Boston tragedy. The spam messages claim to contain news concerning the Boston Marathon bombing, reports Craig Williams from Cisco. The spam messages contain a link to a site that claims to have videos of explosions from the attack. Simultaneously, links to these sites were posted as comments to various blogs. more

DNS Bug Disclosure: ICANN Releases New Guidelines

The Internet Corporation for Assigned Names and Numbers (ICANN) has released new guidance concerning the reporting and disclosure of bugs that affect the Domain Name System, including information of how ICANN itself will behave in response to vulnerabilities. Until recently, ICANN, which is responsible for maintaining the root domain servers at the heart of the DNS system, had no specific guidelines for the reporting of vulnerabilities, leaving responsible disclosure protocols up to the researchers who discovered the bug. more

Don’t Blame Open Recursives For DDoS Attacks and Why You Should Implement BCP38

There has been plenty of buzz and chatter on the Internet recently concerning a very large DDoS attack against CloudFlare, with coverage on their blog, the New York Times, and the BBC, among many others. While attacks of this nature are certainly nothing new, the scale of this attack was surprising, reported to hit 120Gbps. For a sense of scale, your average cable modem is only about 20Mbps, or about 0.016% of that bandwidth. more

U.S. CERT Issues Alert on DNS Amplification Attacks

Neil Schwartzman writes to report that U.S. Cert issued Alert TA13-088A on Friday March 29, 2013. "It is a solid how-to guide to test for, and remediate DNS configurations that can be used for Distributed Denial of Service attacks." more