Mevade Botnet

The Mevade Botnet, also known as Sefnit or SBC, is a massive botnet. Its operators are unknown and its motives seems to be multi-purpose.¹

In late 2013 the Tor anonymity network saw a very sudden and significant increase in users, from 800,000 daily to more than 5,000,000. A botnet was suspected and fingers pointed at Mevade. Trend Micro reported that its Smart Protection Network saw a tor module being distributed to Mevade Trojans.²