Detecting Complex Viruses

There are many metrics by which to measure the efficiency and effectiveness of an antivirus product and the response organization that is backing it. Some of the commonly used metrics today include the antivirus company's response time to new threats and well as the availability of proactive detection. But are these metrics enough?

The purpose of this paper is to examine the difficulties of detecting complex viruses, including polymorphic, metamorphic and entry-point obscuring viruses. Whether or not an anti-virus technology can detect these viruses can be a useful metric to consider when evaluating AV products.