An Effective Method for Combating Malicious Scripts Clickbots

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Executive Summary

Online advertising has been suffering serious click fraud problem. Fraudulent publishers can generate false clicks using malicious scripts embedded in their web pages. Even widely-used security techniques like iframe cannot prevent such attack. In this paper, the authors propose a framework and associated methodologies to automatically and quickly detect and filter false clicks generated by malicious scripts. They propose to create an impression-click identifier which is able to link corresponding impressions and clicks together with a predefined lifetime. The impression-click identifiers are stored in a special data structure and can be later validated upon a click is received.

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