FWIIW, I have to scratch my head and wonder why you would want to start an AV company. The market seems to me to be saturated and has become a commodity... the

FWIIW, I have to scratch my head and wonder why you would want to start an AV company. The market seems to me to be saturated and has become a commodity... there are lots of free non-enterprise versions and the enterprise market is going to be extremely hard for a new, unproven company to break into. WRT signatures and databases, I would start by digging into ClamAV http://www.clamav.net/lang/en/about/ http://www.clamav.net/lang/en/about/ to see how they generate their signatures. I expect there is a lot of information that would help answer your questions on the mailing lists as well. http://www.clamav.net/lang/en/ml/ http://www.clamav.net/lang/en/ml/