Tiger Security firm has discovered a series of DDoS attacks from China and that appear as run by a structured organization. Operation Distributed Dragons has already targeted thousand of machines worldwide, Canada, The Netherlands, Hungary and Germany are the countries hosting the greatest number of compromised PCs. The bad actors used brute force attacks to compromise the machines exploiting several kinds of flaw, including weak login credentials and out-of-date versions of products. The attacks are still ongoing and according to the experts the number of new infected machines is increasing rapidly.”]
Source: http://securityaffairs.co/wordpress/29421/cyber-crime/operation-distributed-dragons.html