P2PAV: Anti-virus through P2P

Antivirus software is one of the most widely installed software for protecting computer from malicious attacks. However, traditional host-based antivirus needs to store all viruses´ pattern or sample, which not only needs large local storage, but also fails to detect modern threats in time. The newly come cloud-based antivirus, which needs no extra local storage and compares virus´ pattern on provider´s cloud servers, has the disadvantages of being more likely to be attacked when offline. This paper advocates P2PAV, a new model for malware detection through P2P network, which takes advantages of traditional ones and cloud antivirus, reduces local storage, and meanwhile, improves the ability of detecting modern virus than traditional ways, and combating virus when offline than cloud-based antivirus.