Towards De-Anonymization of Google Play Search Rank Fraud
| Autor: | Bogdan Carbunar, Duen Horng Chau, Nestor Hernandez, Mizanur Rahman |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
De-anonymization
business.industry Computer science media_common.quotation_subject Supervised learning Rank (computer programming) Internet privacy Competitor analysis Crowdsourcing humanities Computer Science Applications Promotion (rank) Computational Theory and Mathematics Stylometry ComputingMilieux_COMPUTERSANDSOCIETY Quality (business) business health care economics and organizations Information Systems media_common |
| Zdroj: | IEEE Transactions on Knowledge and Data Engineering. 33:3648-3661 |
| ISSN: | 2326-3865 1041-4347 |
| Popis: | Search rank fraud, the fraudulent promotion of products hosted on peer-review sites, is driven by expert workers recruited online, often from crowdsourcing sites. In this paper we introduce the fraud de-anonymization problem, that goes beyond fraud detection, to unmask the human masterminds responsible for posting search rank fraud in peer-review sites. We collect and study data from crowdsourced search rank fraud jobs, and survey the capabilities and behaviors of 58 search rank fraud workers recruited from 6 crowdsourcing sites. We collect a gold standard dataset of Google Play user accounts attributed to 23 crowdsourced workers and analyze their fraudulent behaviors in the wild. We propose Dolos , a fraud de-anonymization system that leverages traits and behaviors we extract from our studies, to attribute detected fraud to crowdsourcing site workers, thus to real identities and bank accounts. We introduce MCDense, a min-cut dense component detection algorithm to uncover groups of user accounts controlled by different workers, and use stylometry and supervised learning to attribute them to crowdsourcing site profiles. Dolos correctly identified the owners of 95 percent of fraud worker-controlled communities, and uncovered fraud workers who promoted as many as 97.5 percent of fraud apps we collected from Google Play. When evaluated on 13,087 apps (820,760 reviews), which we monitored over more than 6 months, Dolos identified 1,056 apps with suspicious reviewer groups. We report orthogonal evidence of their fraud, including fraud duplicates and fraud re-posts. Dolos significantly outperformed adapted dense subgraph detection and loopy belief propagation competitors, on two new coverage scores that measure the quality of detected community partitions. |
| Databáze: | OpenAIRE |
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