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An Internet-Wide View of Internet-Wide Scanning

Tuesday, July 29, 2014 - 4:00pm
Authors: 

Zakir Durumeric, Michael Bailey, and J. Alex Halderman, University of Michigan

Abstract: 

While it is widely known that port scanning is widespread, neither the scanning landscape nor the defensive reactions of network operators have been measured at Internet scale. In this work, we analyze data from a large network telescope to study scanning activity from the past year, uncovering large horizontal scan operations and identifying broad patterns in scanning behavior. We present an analysis of who is scanning, what services are being targeted, and the impact of new scanners on the overall landscape. We also analyze the scanning behavior triggered by recent vulnerabilities in Linksys routers, OpenSSL, and NTP. We empirically analyze the defensive behaviors that organizations employ against scanning, shedding light on who detects scanning behavior, which networks blacklist scanning, and how scan recipients respond to scans conducted by researchers. We conclude with recommendations for institutions performing scans and with implications of recent changes in scanning behavior for researchers and network operators.

Zakir Durumeric, University of Michigan

Michael Bailey, University of Michigan

J. Alex Halderman, University of Michigan

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BibTeX
@inproceedings {184493,
author = {Zakir Durumeric and Michael Bailey and J. Alex Halderman},
title = {An {Internet-Wide} View of {Internet-Wide} Scanning},
booktitle = {23rd USENIX Security Symposium (USENIX Security 14)},
year = {2014},
isbn = {978-1-931971-15-7},
address = {San Diego, CA},
pages = {65--78},
url = {https://www.usenix.org/conference/usenixsecurity14/technical-sessions/presentation/durumeric},
publisher = {USENIX Association},
month = aug,
}
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