Security Firm eleven Reports Spam Trends a Year Following Rustock
Posted in: Spam at 15/03/2012 15:58
In a report released on Wednesday, German email security firm eleven released its observations almost year after the Rustock botnet was shut down on March 16, 2011. According to the report, spam levels in February 2012 were 61.2 percent below the value from February 2011, right before the Rustock shutdown.
Beta versions of Rustock malware first appeared around 2005, but Rustock.C, released in 2006, was when it really started to become a problem, according to a report by Ars Technica last year. It evaded detection for months, and infected many machines. At its peak in August 2010, it was responsible for about 60 percent of the spam sent daily, or about 30 billion spam e-mails a day.