Why the most successful Retefe spam campaign never paid off
Switzerland is one of the main targets of the Retefe banking trojan since its first appearance in November 2013. At that time, it changed the local DNS resolver on the computer (See also blog post “Retefe Bankentrojaner” in German only). Almost a year went by until they changed to the still current approach of setting … Continue reading “Why the most successful Retefe spam campaign never paid off”