Archive for August, 2009

What Europeans do at Night

August 17, 2009 by Craig Labovitz

The New York Times recently had an interesting piece on the changing daily Internet usage patterns in the US. The basic gist of the article was Americans are using the Internet more than in the past and starting to twitter / surf / email much earlier in the day. Which made us wonder if Europeans [...]

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Twitter-based Botnet Command Channel

August 13, 2009 by Jose Nazario

UPDATED TO ADD STATS AND JAIKU PROFILE AND A TUMBLR PROFILE While digging around I found a botnet that uses Twitter as its command and control structure. Basically what it does is use the status messages to send out new links to contact, then these contain new commands or executables to download and run. It’s [...]

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The Other Attacks Last Thursday

August 7, 2009 by Craig Labovitz

Yesterday morning was a busy time for Internet security. As an illustration of this activity, the graph below shows a summary of attack traffic across the 77 Observatory ISPs reporting anonymized attack statistics. Each line or rectangle represents a distinct attack (we saw over 770 attacks Thursday covering a wide variety of scale and targets). [...]

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