Malicious Software

There is an unprecedented amount of computer viruses, worms, Trojan horses, spyware, and other malicious software roaming the Internet. Reactive defenses won't win the war: we are proactively looking at new threats and how to stop them, and examining new ways to stop old threats. Some of our recent work has identified times when the Internet is especially vulnerable to attack, new ways that malicious software might obscure its code, and new configurations and uses for hijacked computers.