Diplomarbeit aus dem Jahr 2011 im Fachbereich Informatik - IT-Security, Fachhochschule Salzburg (Informationstechnik und System-Management), Sprache: Deutsch, Abstract: Click Fraud is an upcoming and increasing challenge for all aspects of e-commerce and online-marketing. This diploma thesis tries to categorize the term click fraud. Common ways of performing click fraud (botnets, forced browser-clicks) are described and analyzed. The approaches of circumvention of click-fraud by the operators of ad-networks and searchengines are shown, as also the possibilities of afterwards detection of click fraud by companies. A framework with examples is provided to develop and analyze algorithms to detect click fraud.