Threat Intelligence |
Sponsored by |
|
In my last blog post I shared some of the general security challenges that come with the Internet of Things (IoT). In this post, I will focus on one particular security risk: distributed denial of service (DDoS) attacks. Even before the age of IoT, DDoS attacks have been turning multitudes of computers into botnets, attacking a single target and causing denial of services for the target's users. By "multitudes" we can be talking about thousands or even millions of victim devices. Now add IoT into the equation... more
Shadow IT -- the use of unsanctioned software and services by employees -- is a problem. It's a big one. According to Forbes, 72 percent of executives don't know how many "shadow" apps are being used on their network. Beyond overloading network resources and impacting data compliance, there is also the real threat of security breaches from unapproved apps. Managing IT you can't see is no easy task, but fortunately it's not impossible. Here are five tips to help bring light to the shadows. more
Over the last few years I've been hearing some people claim that botnets are the real spam problem and that if you can find a sender then they're not a problem. Much of this is said in the context of hating on Canada for passing a law that requires senders actually get permission before sending email. Botnets are a problem online. They're a problem in a lot of ways. They can be used for denial of service attacks. They can be used to mine bitcoins... more
Unlike consultant-led penetration testing, periodic or continual vulnerability scanning programs have to operate harmoniously with a corporation's perimeter defenses. Firewalls, intrusion prevention systems, web proxies, dynamic malware analysis systems, and even content delivery networks, are deployed to protect against the continuous probes and exploit attempts of remote adversaries -- yet they need to ignore (or at least not escalate) similar probes and tests being launched by the managed security service providers an organization has employed to identify and alert upon any new vulnerabilities within the infrastructure or applications that are to be protected. more
The indicators of compromise (IOCs) outlined in my last blog post can be used as a baseline for developing intrusion sets and tracking attack campaigns and threat actors. When launching an attack, threat actors use a variety of vectors and infrastructure, which Verisign iDefense analysts -- as well as analysts across the cybersecurity community -- correlate to group attacks, tracking actors and determining attack methods. more
To those of us who have worked on crypto policy, the 1990s have become known as the Crypto Wars. The US government tried hard to control civilian use of cryptography. They tried to discourage academic research, restricted exports of cryptographic software, and -- most memorably -- pushed something called "escrowed encryption", a scheme wherein the government would have access to the short-term keys used to encrypt communications or stored files. more
I previously provided a brief overview of how Verisign iDefense characterizes threat actors and their motivations through adversarial analysis. Not only do security professionals need to be aware of the kinds of actors they are up against, but they should also be aware of the tactical data fundamentals associated with cyber-attacks most commonly referred to as indicators of compromise (IOCs). Understanding the different types of tactical IOCs can allow for quick detection of a breach... more
Facebook just announced support for PGP, an encrypted email standard, for email from them to you. It's an interesting move on many levels, albeit one that raises some interesting questions. The answers, and Facebook's possible follow-on moves, are even more interesting. The first question, of course, is why Facebook has done this. It will only appeal to a very small minority of users. Using encrypted email is not easy. more
For the last couple of years, the most common attack vector against the DNS system is the attack against the registrar. Either the attack is on the software itself using weaknesses in the code that could inject DNS changes into the TLD registry, or social engineering the registrar support systems and the attacker receives credentials that in turn allows the attacker to perform malicious changes in DNS. DNSSEC is the common security mechanism that protects the DNS protocol, but by using the registrar attack, any changes will result in a proper working DNS delegation. more
News flash: to help fight California's drought, Samsung is offering a $100,000 prize to the innovator who creates "the most effective use of IoT and ARTIK [Samsung's IoT platform] technology for reducing water consumption by individuals or municipalities." When the average reader of this news headline needs no explanation of what "IoT" means or what this contest is about, we know IoT, or the Internet of Things, is for real. There are already an estimated 25 billion connected devices around the world, according to expert estimates. more
It is not often I go out to my driveway to pick up the Washington Post -- yes, I still enjoy reading a real physical paper, perhaps a sign of age -- and the headline is NOT about how the (insert DC sports team here) lost last night but is instead is about an IT technology. That technology is the Border Gateway Protocol (BGP), a major Internet protocol that has been around for more than a quarter century, before the Internet was commercialized and before most people even knew what the Internet was. more
The new Anti-Phishing Working Group (APWG) Global Phishing Survey has just been released. Written by myself and Rod Rasmussen of IID, the report is the "who, what, where, when, and why" look at phishing, examining the second half of 2014. The report has many findings, but here I'll concentrate on the new gTLDs. The second half of 2014 was when an appreciable number of new gTLDs entered general availability and started to gain market share. more
Although IPv6 DDoS attacks are not yet a common occurrence, there are indications that malicious actors have started testing and researching IPv6 based DDoS attack methods. more
Paul Vixie proposes a 'cooling-off period' when domain names are registered in order to help detect and deter malicious activity. "There's no legitimate reason for a new domain name to be registered and go live in less than a minute... more
During the 4th quarter of 2014, a record number of malware variants were detected -- an average of 255,000 new threats each day, according a recent report by Anti-Phishing Working Group (APWG). The group further reports that the number of unique phishing reports submitted to APWG during Q4 was 197,252 -- an increase of 18 percent from the 163,333 received in Q3 of 2014. more
A World-Renowned Source for Internet Developments. Serving Since 2002.
