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Observation of port-scan packets performed over the Internet is involved with so many parameters including time, port numbers, source and destination addresses. There are some common port numbers to which many malicious codes likely use to scan, but a relationship between port numbers and the malicious codes are not clearly identified. In this paper, we propose a new attempt to figure characteristics...
Computer worms randomly perform port-scans to find vulnerable hosts to intrude over the Internet. Malicious software varies its port-scan strategy, e.g., some hosts intensively perform scans on a particular target and some hosts scan uniformly over IP address blocks. In this paper, we propose a new automated worm classification scheme from distributed observations. Our proposed scheme can detect some...
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