Threat Intelligence

IPv6 Security Myth #1: I’m Not Running IPv6 so I Don’t Have to Worry

Now that IPv6 is being actively deployed around the world, security is more and more a growing concern. Unfortunately, there are still a large number of myths that plague the IPv6 security world. These are things that people state as fact but simply aren't true. While traveling the world, talking to the people who've already deployed IPv6, I've identified what I believe are the ten most common IPv6 security myths. more

Can We Create a Secure Caller ID For VoIP?

Can we create a "secure Caller ID" for IP-based communications, a.k.a. voice-over-IP (VoIP)? And specifically for VoIP based on the Session Initiation Protocol (SIP)? Can we create a way to securely identify the origin of a call that can be used to combat robocalling, phishing and telephony denial-of-service (TDOS) attacks? That is the challenge to be undertaken by the "Secure Telephone Identity Revisited (STIR)" group meeting tomorrow morning, July 30, 2013, at 9:00 am in Berlin, Germany, as part of the 87th meeting of the Internet Engineering Task Force (IETF). more

Typosquatting Continues to Pose Dangers to Enterprises, Consumers

While typosquatting is not a new phenomenon, recent research highlights that it is being used to collect sensitive corporate information from employees and lure consumers to interact with dubious websites. ... Security consultancy Godai Group recently uncovered the use of a specific type of typosquat - a "doppelganger domain" - to collect sensitive enterprise information via email-based attacks. more

Actions Required by Developing Economies Against Spam

My OECD paper on spam problems in developing economies is now linked from the OECD Anti-Spam Toolkit page, as part of section 8 of the Anti-Spam Toolkit (Outreach). This ZDNet article provides a reasonably good summary of my paper as well. I welcome comments and suggestions from CircleID readers. "Spam is a much more serious issue in developing countries as it is a heavy drain on resources that are scarcer and costlier in developing countries than elsewhere..." more

Typosquatted Domain Names Pose Plenty of Risk But Surprisingly Little Malware

A recent study took an in-depth look at the scale and the risk of domain name typosquatting -- the practice of registering mis-spellings of popular domain names in an attempt to profit from typing mistakes. "Applying every possible one-character typo to the domain names of Facebook, Google, Twitter, Microsoft, Apple and Sophos," Paul Ducklin, Sophos' Asia Pacific head of technology collected HTTP data and browser screenshots from 1502 web sites and 14,495 URLs. In this report, Ducklin analyses the data revealing unexpected results within the typosquatting ecosystem. more

M3AAWG Releases Anti-Abuse Best Common Practices for Hosting and Cloud Service Providers

Jointly published by the Internet Infrastructure Coalition (i2C) and the Messaging, Malware and Mobile Anti-Abuse Working Group, the new document outlines proven activities that can help Web hosting services improve their operations and better protect end-users. more

Taking the Leap to Cloud-Based Malware Inspection

Is desktop anti-virus dead? Someday I'd love to make that announcement, but it still feels to me that there's a Patron Saint of Voodoo with an affinity for bringing it back to life -- like some macabre mirror image of the malicious zombies it's supposed to provide protection against. It's kind of ironic that today's innovation in desktop anti-virus isn't really happening at the desktop; rather it's occurring in the cloud. more

91.3% of Malware Use DNS as a Key Capability

Nearly 92 percent of malware use DNS to gain command and control, exfiltrate data or redirect traffic, according to Cisco's 2016 Annual Security Report. It warns that DNS is often a security "blind spot" as security teams and DNS experts typically work in different IT groups within a company and don't interact frequently. more

VeriSign’s New Security Seal Too Trusting?

On November 4, 2003, VeriSign announced a new "trust enhancing" seal which they built using Macromedia's Flash technology...While there are problems inherent to VeriSign's approach that call into question their understanding of "The Value of Trust," there are ways they could have made this particular implementation less trivially spoofable. The flaws I demonstrate on this page are flaws in the concept and the execution rather than anything inherently flawed in Flash. Overall this kind of graphical "trustmark" is extremely easy to forge just by recreating the artwork. But in this case, you don't even have to do that. The seal can still be called directly off the VeriSign servers, yet it is easily modified, without recreating artwork, and without doing anything untoward with VeriSign's servers! more

IETF Reaches Broad Consensus to Upgrade Internet Security Protocols Amid Pervasive Surveillance

Internet security has been a primary focus this week for more than 1100 engineers and technologists from around the world gathered at the 88th meeting of the Internet Engineering Task Force (IETF). Participants are rethinking approaches to security across a wide range of technical areas. more

How Registrants Can Reduce the Threat of Domain Hijacking

Because domain names represent the online identity of individuals, businesses and other organizations, companies and organizations large and small have expressed increasing concern over reports of "domain name hijacking," in which perpetrators fraudulently transfer domain names by password theft or social engineering. The impact of these attacks can be significant, as hijackers are typically able to gain complete control of a victim's domain name - often for a significant period of time. more

The Internet Needs a Security and Performance Upgrade

Many of you will have seen news stories that explained what was going on: a huge DDoS attack on the infrastructure of Dyn had taken down access to many large websites like Twitter. A great deal of digital ink has since been spilled in the mainstream press on the insecurity of the Internet of Things, as a botnet of webcams was being used. Here are some additional issues that might get missed in the resulting discussion. more

Person to Person Security and Privacy Infringement

IT security strategies invariably focus on maintaining impenetrable fortresses around computers and network systems. Firewalls, virtual private networks and anti-virus programs are the tools IT engineers use to create their digital security. Sophisticated defense systems can be very effective at keeping the obvious attackers at bay, yet they often create a false sense of security because the real attacks, the kind that inflict irreparable damage on a system or network, avoid the obvious routes into the secure fortress. more

Search Engines and Registrars Getting Creative with Whois Database?

One of the best sources of information about sites on the web is the Whois database. A trio of patent applications from Go Daddy, published last week at the US Patent and Trademark Office, explores whether adding additional information to the Whois database might help reduce spam, phishing, and other fraudulent practices and improve search engine results. The patent filings from Go Daddy would add reputation information to the published Whois data to let others use it for a number of reasons, including enabling search engines incorporate it into their ranking mechanisms. ...The patent application from Google focuses upon fighting web spam using a wide range of data, including that associated with domain names. ...We can't really be certain that Google is presently using this information, but there are some indications that they may be... more

A Survey of DNS Security: Most Vulnerable and Valuable Assets

The following provides and introduction to a study by Venugopalan Ramasubramanian and Emin Gun Sirer, called "Perils of Transitive Trust in the Domain Name System". The paper presents results from a large scale survey of DNS, illustrating how complex and subtle dependencies between names and nameservers lead to a highly insecure naming system... "It is well-known that nameservers in the Domain Name System are vulnerable to a wide range of attacks. We recently performed a large scale survey to answer some basic questions about the legacy DNS." more