An Inside Look at a Banking Trojan

By Jean-Francois Legault

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A Closer Look at Technology and Fraud    





After I taught the breakout session, "How Technology Changed Fraud Investigations," at the 22nd Annual ACFE Fraud Conference and Exhibition in June, I received a number of questions about how banking Trojans work. The timing was perfect: In May, various underground forums leaked to the public the source code for the Zeus banking Trojan. Zeus, a highly configurable crimeware, is one of the most pervasive threats in the cyberlandscape. Its "public" release does not necessarily mean it is no longer a threat: More people will have access to it, and it can now serve as inspiration for future banking Trojans. This comes at about the same time as Zeus' author announced his retirement and turned the source code over to a competitor.    


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