The document analyzes the effectiveness of antivirus software against the Zeus malware based on real-world data collected from millions of consumer PCs. It finds that over half of Zeus infections occurred on PCs with up-to-date antivirus software installed. Using Bayesian analysis, it calculates that having up-to-date antivirus reduces the risk of Zeus infection by only 23% compared to having no antivirus at all. This reveals that the vast majority of Zeus infections are still undetected by antivirus products in the real world.
Human Factors of XR: Using Human Factors to Design XR Systems
Antivirus 23% Effective Against Zeus
1. Measuring the in-the-wild
effectiveness of Antivirus
against Zeus
Trusteer
September 14, 2009
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