Christoph Göldi

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Finding the cause for congested virtual private network (VPN) links that connect an office network over the Internet to remote subsidiaries can be a hassle. Scan traffic of worm infected hosts is one important possible cause. We developed a scan detection tool, which continuously monitors network traffic on VPN gateway(s) and that reliably detects and(More)
The number of new worms on the Internet increases rapidly. Worm infections cause traffic overloads in office networks and congestions of Internet links which hurt the affected companies and which cost the industry yearly several billion dollars. The goal of this thesis is the implementation of a generic worm detection tool that runs efficiently on(More)
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