Security metrics have received significant attention. However, they have not been
systematically explored based on the understanding of attack-defense interactions, which …

Botnets, which are networks formed by malware-compromised machines, have become a
serious threat to the Internet. Such networks have been created to conduct large-scale …

Ransomware is a type of malware that encrypts the files of infected hosts and demands
payment, often in a crypto-currency like Bitcoin. In this paper, we create a measurement …

Goals capture, at different levels of abstraction, the various objectives the system under
consideration should achieve. Goal-oriented requirements engineering is concerned with …

Botnets are now the key platform for many Internet attacks, such as spam, distributed denial-
of-service (DDoS), identity theft, and phishing. Most of the current botnet detection …

Botnets, networks of malware-infected machines that are controlled by an adversary, are the
root cause of a large number of security problems on the Internet. A particularly …

We present the Crossfire attack--a powerful attack that degrades and often cuts off network
connections to a variety of selected server targets (eg, servers of an enterprise, a city, a …

Botnets are now recognized as one of the most serious security threats. In contrast to
previous malware, botnets have the characteristic of a command and control (C&C) channel …

We present a new kind of network perimeter monitoring strategy, which focuses on
recognizing the infection and coordination dialog that occurs during a successful malware …

Among the various forms of malware, botnets are emerging as the most serious threat
against cyber-security as they provide a distributed platform for several illegal activities such …