Threat Intelligence

Geeks All Trust Each Other But Not in China

Brian Krebs has a post up the other day on his blog indicating that the amount of spam ending in .cn has declined dramatically due to steps taken by the Chinese government making it more difficult to get a domain ending in .cn... A cursory glance seems to confirm that the amount of spam from .cn as opposed to .ru has switched places. Indeed, if the CNNIC requires people to start writing in application forms, with a business license and identity card, that is seriously going to slow down the rate at which spammers can sign up and register new domains.

Live Long and (Do Not) Prosper: Lessons and Reminders from Yesterday’s Wikipedia Outage

Yesterday's Wikipedia outage, which resulted from invalid DNS zone information, provides some good reminders about the best and worst attributes of active DNS management. The best part of the DNS is that it provides knowledgeable operators with a great tool to use to manage traffic around trouble spots on a network. In this case, Wikipedia was attempting to route around its European data center because...

A Sophisticated Online Counterfeit Ring

Online fakes can be a lucrative business and difficult to crack down on, due to the ease and low-cost of setting up multiple virtual storefronts and the ability to obfuscate an operation's identity. A federal lawsuit filed on March 1, 2010 by Polo Ralph Lauren and VF Corp. illustrates these points and highlights many of the intricacies of an online counterfeit ring.

Perspectives on a DNS-CERT

Last week at the ICANN meeting in Nairobi, a plan was announced by ICANN staff to create a "CERT" for DNS. That's a Community Emergency Response Team (CERT) for the global Domain Name System (DNS). There are all kinds of CERTs in the world today, both inside and outside the Internet industry. There isn't one for DNS, and that's basically my fault, and so I have been following the developments in Nairobi this week very closely.

Another One (Partially) Bites the Dust

Following in the footsteps of Lethic, Waledac and Mariposa, yet another botnet has been taken offline. Not completely, though, it was only a partial disconnect. The Zeus botnet, also known as Zbot, is a trojan password stealer that captures passwords and sends them to the attacker.

Authorities Take Down the Mariposa Botnet

There are a number of sources talking about the takedown of the Mariposa botnet... Spanish authorities, working with researchers from Panda Labs, Defence Intelligence and a couple of other educational institutions, took down the Mariposa botnet (Mariposa is the Spanish word for "butterfly"). The Mariposa botnet is an absolutely enormous with around 12 million (!) nodes doing its bidding. It was involved in things like credit card phishing and identity fraud.

Closing in on the Google Hackers

Joseph Menn has an article on CNN.com wherein the crux of the story is that US experts are closing in on the hackers that broke into Google last month. It is believed by some that the Chinese government sponsored these hackers. China, naturally, denied involvement. My own take is that tools today are sophisticated enough such that you don't necessarily need state sponsorship in order to launch a cyber attack.

OpenDNS Adopts Proposed DNS Security Solution: DNSCurve

For more than 15 years, the IETF has been working on DNSSEC, a set of extensions to apply digital signatures to DNS. Millions of dollars in government grants and several reboots from scratch later, DNSSEC is just starting to see real world testing. And that testing is minimal -- only about 400 of the more than 85,000,000 .com domains support DNSSEC, fewer than 20% of US government agencies met their mandated December 31, 2009 deadline for DNSSEC deployment, and only two of the thirteen root zone name servers is testing with even dummy DNSSEC data.

Chuck Norris Botnet and Broadband Routers

Last week Czech researchers released information on a new worm which exploits CPE devices (broadband routers) by means such as default passwords, constructing a large DDoS botnet. Today this story hit international news... The spread of insecure broadband modems (DSL and Cable) is extremely wide-spread, with numerous ISPs, large and small, whose entire (read significant portions of) broadband population is vulnerable.

A Dangerous Buzz, and Opt-In Isn’t Just for Email

Google is great at generating buzz, and they've done it again with their new social vitality tool, appropriately named Google Buzz. Buzz takes all of your Gmail contacts (and presumably other connections from elsewhere within the Googleplex), and makes them all your "friends" by default; it then shares your activity from Google Reader, YouTube, and other tools with all of them, and vice versa...