Waves of DDoS attacks inflicting outages on Twitter, Spotify & other internet services.

We predicted these trends will start to emerge mainstream, and this could potentially become even targeted at specific countries social infrastructure or event critical service providers in the future....

We predicted these trends will start to emerge mainstream, and this could potentially become even targeted at specific countries social infrastructure or event critical service providers in the future. As dependence on internet-based services and digital services become practically utilitarian, those nefarious individuals and cooperations looking to dismantle social trust in an effort to extort confidence and financial benefit is set to only become a trend, unless security is decentralized on its own merit.

Several waves of major cyberattacks against an internet directory service knocked dozens of popular websites offline today, with outages continuing into the afternoon. Twitter, SoundCloud, Spotify, Shopify, and other websites have been inaccessible to many users throughout the day. The outages are the result of several distributed denial of service (DDoS) attacks on the DNS provider Dyn, the company confirmed. The outages were first reported on Hacker News.

“We are actively in the third flank of this attack,” Dyn’s chief strategy officer Kyle York told reporters around 4:30 p.m. ET today. “It’s a very smart attack. As we mitigate, they react.”

Dyn’s general counsel Dave Allen added that, with the help of other infrastructure companies Akamai and Flashpoint, Dyn has determined that some of the traffic used in the attacks comes from the Mirai botnet, a network of infected Internet of Things devices used in other recent large-scale DDoS attacks.
Dyn and other DNS providers operate as a link between the URLs you type into your browser and the corresponding IP addresses. DDoS attacks are frequently used to censor specific websites by overwhelming them with junk traffic and knocking them offline. However, by attacking Dyn, it’s possible to overwhelm that directory function and cause outages and loading problems across a large swath of the internet.

IoT and IoE end-points have been a source of worry for many experts in the Internet field as these terminals become part of the Internet with sometimes rudimentary functionality but based on open source operating systems which inadvertently become hijacked almost easily. Note, the flaw is not in the use of Open Source operating systems, but that in implementing these OS’s most vendors fail to fully harden the security on such terminals? Thus exposing them to infenious hacks. The field of IoT and IoE demands some very rapt attention in establishing standards and mechanisms for these terminals to be auto-managed by thee control centers.
Other sites experiencing issues include Box, Boston Globe, New York Times, Github, Airbnb, Reddit, Freshbooks, Heroku and Vox Media properties. Users in Europe and Asia may experience fewer problems than those in the U.S. — according to DownDectector’s outage map, the DDoS attacks against Dyn are primarily impacting U.S. users. The attacks on Dyn began this morning. Service was temporarily restored around 9:30 a.m. ET, but a second attack began around noon, knocking sites offline once again.The DNS provider said engineers were working on “mitigating” the issue, but a third wave began around 4:30 p.m. ET before being resolved roughly two hours later.

“The complexity of the attacks is making it complicated for us. It’s so distributed, coming from tens of millions of source IP addresses around the world. What they’re doing is moving around the world with each attack,” Dyn’s York explained.York said that the DDoS attack initially targeted the company’s data centers on the East Coast, then moved to international data centers. The attack contained “specific nuance to parts of our infrastructure,” he added.
The White House press secretary told members of the press this morning that the Department of Homeland Security is looking into the attacks. 

Dyn employees said the company is working with law enforcement to investigate the attacks and has received support from customers, competitors, and the State Department.
Dyn said it has not yet attributed the attack to any group or country, and that the DDoS traffic has been coming from tens of millions of discrete IP addresses around the globe. Although DDoS attacks are sometimes accompanied by extortion letters that ask a company to hand over bitcoin in exchange for ceasing an attack, Dyn said it has not received any messages from its attackers.  “We are working incredibly diligently on that with the law enforcement community and infrastructure community,” York said of the attribution process. 

“No one wants to be next.”

The DDoS attack on Dyn follows on the heels of one of the largest DDoS attack in history, which used the Mirai botnet to target the website of independent cybersecurity journalist Brian Krebs. Although DDoS attacks have historically used large networks of compromised computers called botnets to send junk traffic to sites, overwhelming them and making them inaccessible to legitimate users, the Krebs attack expanded in scale by using compromised Internet of Things devices like security cameras to build a botnet. IoT devices are cheaply manufactured and notoriously insecure, making them easy to compromise.

After the attack on Krebs’ website, the code used to build the botnet leaked online, making more massive DDoS attacks all but inevitable.
“There are 3.4 billion internet users globally and 10 to 15 billion IoT devices. Now imagine that by 2020 we are expecting 3 times that amount in IoT terminals live!!! It’s a complex world already and going to become even more super complex. 

“All we can do is lock arms together and see how we can rectify this,” ~ York.

Security researcher Bruce Schneier reported in September that several internet infrastructure companies had been targeted with DDoS attacks, although they had not caused the kind of widespread outages experienced today. Shneier wrote that the attacks seemed designed to test companies’ defensive capabilities:
“These attacks are significantly larger than the ones they’re used to seeing. They last longer. They’re more sophisticated. And they look like probing. One week, the attack would start at a particular level of security domain and slowly ramp up before stopping. The next week, it would start at that higher point and continue. And so on, along those lines, as if the attacker were looking for the exact point of failure.”

“Someone is extensively testing the core defensive capabilities of the companies that provide critical Internet services…” ~ Schneier.

If you’re experiencing connection problems, these days it will be good trying to set multiple DNS providers. For Dyn users the following are recommended, you can try changing your DNS settings (instructions for how to do this on Mac and Windows are here). Anecdotally OpenDNS ( and and OpenNIC servers are alternate servers that may offer a reprieve. You may sign up for their services now and perhaps use them as your tertiary DNS provider.  Internet services are no more a luxury but now become a critical part of our daily experience. My recommendation to folks is always think ahead with fallback techniques and processes for fully automated systems that are online. The case is different when the service provider relies heavily on “online” state, its high time we start reworking business processes for this potential dark exposure.

Developing story with sources from Darrell Etherington (@etherington), Kate Conger (@kateconger)

Global Affairs

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