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Threat Intelligence / Featured Blogs

How Big is the Storm Botnet?

The Storm worm has gotten a lot of press this year, with a lot of the coverage tending toward the apocalyptic. There's no question that it's one of the most successful pieces of malware to date, but just how successful is it? Last weekend, Brandon Enright of UC San Diego gave a informal talk at the Toorcon conference in which he reported on his analysis of the Storm botnet. According to his quite informative slides, Storm has evolved quite a lot over the past year... more

In Praise of OpenDNS and a Wii Factoid

If you are not already using OpenDNS on your home network I have one question for you. Why not? When it debuted, OpenDNS' main advantage was speed. It is a great deal faster than the DNS operated by most ISPs so, if you configure your border router/DHCP server to use OpenDNS name servers, the t'internet magically speeds up... On looking at the OpenDNS stats for my home network the other day, one item gave me cause to scratch my head a little. There was a non-trivial number of AAAA look-ups going on. In case you don't know (and I know you do), AAAA look-ups are IPv6 address look-ups... more

Ameritrade Leaks User Information Yet Again, Blames Hacker X

OK, you know things are getting bad when Ameritrade leaks its customer information yet again, and I don't even bother to report it because it's not news anymore. Well, recent updates to the story have prompted me to correct that omission. Yes, it happened again. Roughly a month ago, correspondents began to receive pump-n-dump spam to tagged email addresses which they had given only to Ameritrade... This now marks the third major confirmed leak of customer information from Ameritrade. In addition, the Inquirer reported the loss of 200,000 Ameritrade client files in February 2005. One correspondent informs me that this has happened to him on four or five previous occasions. more

If WHOIS Privacy is a Good Idea, Why is it Going Nowhere?

ICANN has been wrangling about WHOIS privacy for years. Last week, yet another WHOIS working group ended without making any progress. What's the problem? Actually, there are two: one is that WHOIS privacy is not necessarily all it's cracked up to be, and the other is that so far, nothing in the debate has given any of the parties any incentive to come to agreement. The current ICANN rules for WHOIS say, approximately, that each time you register a domain in a gTLD (the domains that ICANN manages), you are supposed to provide contact information... WHOIS data is public, and despite unenforceable rules to the contrary, it is routinely scraped... more

Spamford Wallace Gets Sued Yet Again

If there were a lifetime achievement award for losing lawsuits for being annoying, Sanford Wallace would be a shoo-in. Fifteen years ago, his junk faxing was a major impetus for the TCPA, the law outlawing junk faxes. Later in the 1990s, his Cyber Promotions set important legal precedents about spam in cases where he lost to Compuserve and AOL. Two years ago, he lost a suit to FTC who sued his Smartbot.net for stuffing spyware onto people's computers. And now, lest anyone think that he's run out of bad ideas, he's back, on the receiving end of a lawsuit from MySpace... more

The Case Against DNSSEC

I was talking to my good friend Verner Entwhistle the other day when he suddenly turned to me and said "I don't think we need DNSSEC". Sharp intake of breath. Transpired after a long and involved discussion his case boiled down to four points: 1. SSL provides known and trusted security, DNSSEC is superfluous, 2. DNSSEC is complex and potentially prone to errors, 3. DNSSEC makes DoS attacks worse, 4. DNSSEC does not solve the last mile problem. Let's take them one at a time... more

Defending Networks Against DNS Rebinding Attacks

DNS rebinding attacks are real and can be carried out in the real world. They can penetrate through browsers, Java, Flash, Adobe and can have serious implications for Web 2.0-type applications that pack more code and action onto the client. Such an attack can convert browsers into open network proxies and get around firewalls to access internal documents and services. It requires less than $100 to temporarily hijack 100,000 IP addresses for sending spam and defrauding pay-per-click advertisers. Everyone is at risk and relying on network firewalls is simply not enough. In a paper released by Stanford Security Lab, "Protecting Browsers from DNS Rebinding Attacks," authors Collin Jackson, Adam Barth, Andrew Bortz, Weidong Shao, and Dan Boneh provide ample detail about the nature of this attack as well as strong defenses that can be put in place in order to help protect modern browsers. more

Phishers Now Targeting Domain Registrars

This is an issue of some concern and should be watched carefully: phishers are now trying to get passwords of domain registrants (domain owners). Currently, correspondents inform me that GoDaddy is the target, but there's no reason to think the phishers won't expand to other registrars. Normally, phishers go after bank accounts or other financial information, or sometimes the online accounts of users so that they may send spam. It's not known precisely why phishers are after domain registration information, but the possibilities are chilling... more

Let’s Be Careful Out There: Bogus Windows Domains

Last week, my colleagues over at Sunbelt Software discovered a bogus Windows domain being registered earlier this month (where the "w" in "windows" is actually two "v"s). Today, I've been alerted to the fact that are several additional Windows domains which have registered where the "w"s have been also been replaced with "v"s... more

VoIP/IP Telephony in Estonia: Disrupted by Botnets?

With my post earlier this month about the possibility of SIP botnets [also featured here on CircleID], I've had a number of people asking about more information and wondering about the possible impacts. And while I will write more on botnets in general, as far as the potential impact of "botnets" in general, one need only look over at the current situation in Estonia... Now, perhaps Russia is behind the attack... perhaps not. There are obviously much larger political issues going on between the two states. more