Internet Infrastructure Review (IIR) Vol.10
February 2011

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• Executive Summary[490KB]
• Infrastructure Security "Malware Infection Resulting from Mashup Content" [1.47MB]

  In this report, we will explain incidents that occurred between October and December 2010, and discuss a series of DDoS attacks that took place in September 2010, malware infections resulting from mashup　content, alterations of software distribution packages, and the anti-Malware engineering WorkShop 2010.

• Messaging Technology "Examining the Relationship between Sender Authentication Technology and Spam" [719KB]

  In this report we will present an overview of spam trends for week 39 through week 52 of 2010. As was the case for the previous period, the United States was the number one source of spam in this survey. This time we also look at the relationship between spam and authentication results.

• Internet Operation "Understanding and Preparing for the IPv4 Address Exhaustion Issue" [700KB]

  The IPv4 address exhaustion issue that has been a point of discussion for the past few years has now become a reality. Here we explain the issues surrounding IPv4 address exhaustion and the responses that will be required from ISPs and corporations.

• Internet Topics "Nippon CSIRT Association"[793KB]