Tagbotnets

Big botnet takedown

The Department of Justice and the FBI took aggressive action against the Coreflood botnet this week. They not only seized domain names and some hardware, they also received permission to actively respond to infected machines. This TRO allows the government to intercept and respond to infected computers. This essentially cuts off the botnet at it’s knees. I haven’t heard any comments...

More spam graphs

Ken Simpson, CEO of Mailchannels, was kind enough to give me permission to post their graph of spam and email volumes from September 1, 2010 through Jan 3, 2011. This chart also shows the trend of declining volumes of spam. There are some differences, though, which I think highlight how you get different pictures when looking at different data sources. For instance, the amount of real mail (blue...

Spam volumes in 2010

I started hearing various people comment about lower spam volumes sometime in mid December. This isn’t that unusual, spam volumes are highly variable and someone is always noticing that their spam load is going up or going down. The problem is extrapolating larger trends from a small selection of email addresses. There’s too much variation between email addresses and even domains to...

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