Measurement and Analysis of Spyware in a University Environment

Over the past few years, a relatively new computing phenomenon has gained momentum: the spread of "spyware." Though most people are aware of spyware, the research community has spent little effort to understand its nature, how widespread it is, and the risks it presents. This paper is a first attempt to do so. We first discuss background material on spyware, including the various types of spyware programs, their methods of transmission, and their run-time behavior. By examining four widespread programs (Gator, Cydoor, SaveNow, and eZula), we present a detailed analysis of their behavior, from which we derive signatures that can be used to detect their presence on remote computers through passive network monitoring. Using these signatures, we quantify the spread of these programs among hosts within the University of Washington by analyzing a week-long trace of network activity. This trace was gathered from August 26th to September 1st, 2003. From this trace, we show that: (1)...

• Type: Conference
• Year: 2004
• Where: NSDI
• Authors: Stefan Saroiu, Steven D. Gribble, Henry M. Levy
• Keywords: Computer Networks, Host Running Spyware, NSDI 2004, Passive Network Monitoring, Spyware Programs