Dissecting One Click Frauds Authors: Nicolas Christin, Sally S. Yanagihara, Keisuke Kamataki Proceedings of the ACM CCS 2010 Reporter: Jing Chiu Advisor:

Dissecting One Click FraudsAuthors: Nicolas Christin, Sally S. Yanagihara, Keisuke KamatakiProceedings of the ACM CCS 2010Reporter: Jing ChiuAdvisor: Yuh-Jye LeeEmail: [email protected]

112/04/19 1Data Mining & Machine Learning Lab

Outlines• Introduction

▫ One Click Fraud• Data Collection

▫ Channel BBS▫ Koguma-neko Teikoku▫ Wan-Cli Zukan

• Data Analysis▫ Infrastructural loopholes▫ Grouping miscreants▫ Evidence of other illicit activities

• Economic Incentives▫ Cost-benefit analysis▫ Fraud profitability▫ Legal aspects▫ Field measurements

• Conclusions112/04/19 2Data Mining & Machine Learning Lab

•One Click Frauds

Introduction

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•2 Channel BBS▫The largest bulletin board in Japan▫March 6, 2006 ~ October 26, 2009

•Koguma-neko Teikoku▫Privately owned website▫August 24, 2006 ~ August 14, 2009

•Wan-Cli Zukan▫Privately owned website▫September 6,2006 ~ October 26, 2009

Data Collection

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•Data parsing•Extracted attributes•Store to MySQL database

Data Collection (cont.)

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Data Collection (cont.)

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• Infrastructural loopholes▫Phone numbers▫Bank▫DNS registrars▫DNS resellers

• Grouping miscreants▫Use undirected graph to represent the dataset▫Fraud distribution

• Evidence of other illicit activities▫Eight blacklisting services and Google Safe

Browsing

Data Analysis

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•Cost-benefit analysis•Fraud profitability•Legal aspects•Field measurements

Economic Incentives

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•Collect and analyze a corpus of over 2,000 reported One Click Fraud incidents

•Describe a number of potential vulnerabilities which be used for scam

•Shows an important reason for why scam flourish

Conclusions

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•Questions?

Thanks for your attention

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•Top 10 popular registrars vs. Top 11 in One Click Frauds

DNS Registrars

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DNS Resellers

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Fraud Distribution

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Evidence of other illicit activities

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Ten most common amounts of money requested

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Press reports of One Click Fraud arrests

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