Hierarchical Clustering Algorithms for Document Datasets
Data Mining and Knowledge Discovery
Botnet spam campaigns can be long lasting: evidence, implications, and analysis
Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems
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In this paper, we conduct a comprehensive study of SMS spam in a large cellular network in the US. Using one year of user reported spam messages to the network carrier, we devise text clustering techniques to group associated spam messages in order to identify SMS spam campaigns and spam activities. Our analysis shows that spam campaigns can last for months and have a wide impact on the cellular network. Combining with SMS network records collected during the same time, we find that spam numbers within the same activity often exhibit strong similarity in terms of their sending patterns, tenure and geolocations. Our analysis sheds light on the intentions and strategies of SMS spammers and provides unique insights in developing better method for detecting SMS spam.