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Nominum Warns of Home Router DDoS Attack Threat

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4/2/2014
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REDWOOD CITY, Calif. -- New research by Nominum, the innovation leader in DNS and Internet Activity applications for Communication Service Providers, today reveals evidence that DNS-based DDoS amplification attacks have significantly increased in the recent months, targeting vulnerable home routers worldwide. A simple attack can create 10s of Gbps of traffic to disrupt provider networks, enterprises, websites, and individuals anywhere in the world. Nominum’s latest research reveals:

  • More than 24 million home routers on the Internet have open DNS proxies which expose ISPs to DNS-based DDoS attacks
  • In February 2014, more than 5.3 million of these routers were used to generate attack traffic
  • During an attack in January 2014, more than 70% of total DNS traffic on a provider’s network was associated with DNS amplification
  • DNS is by far the most popular protocol for launching amplification attacks, with more available amplifiers than the next four protocols combined

    DNS amplification attacks require little skill or effort and cause major damage; this is the reason why they are increasingly popular. Because vulnerable home routers mask the target of an attack it is difficult for ISPs to determine the ultimate destination and recipient of huge waves of amplified traffic. Nominum recently launched Vantio ThreatAvert to address the gaps in existing ISP DDoS defenses. The solution leverages Nominum’s Global Intelligence Xchange (GIX), a database of malicious DNS amplification domains that is continuously updated, and Precision Policies, which enable ISPs to pinpoint and neutralize attack traffic. Together they enable ISPs to protect their networks proactively.

    Nominum Inc.

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