Dotkachef is a new exploit kit that appeared in early 2013. Unlike the Magnitude and Neutrino exploit kits, which appeared around the same time, Dotkachef did not receive the attention or coverage that those other exploit kits received when they surfaced. Dotkachef has returned with a very sneaky but very effective scheme. It infects known adware systems such as OpenX. Using ad systems has proven to be an extremely effective method of spreading malware through legitimate and trusted ad channels.