Register: A malware infection which drew headlines January has returned and is using new techniques to infect and spread amongst users.
Known as Sefnit, the botnet infection was spotted in September of 2013 and triggered alarms earlier this year when researchers warned that millions of systems were likely infected with the malware. Associated with click fraud and bitcoin mining activities, Sefnit was noted for its use of the Tor anonymising network as a means of avoiding detection.
