Security experts had noticed a downturn in botnet activity at the end of 2010. It was just a temporary effect. Botnets are coming back strong in 2011. Some popular botnets running amok now are the Waledac botnet and the Rustock botnet. These are email spamming botnets that operate on a huge scale.There are predictions that the Zeus crime ware toolkit will take home the prize for 2011. This is a tool that steals personal data. Specifically it targets banking info. You can use this toolkit to create your own botnet variant. Since it is easy to use, even noons can get down with Zeus. This tool attacks traffic (even secure traffic) send through the browser.
