Hi! My Question: If I want to build my own IDS, I wanted to know If there is a way of using existing attack signatures, if anyone could recommend a guide or manual, or an easier way to do it without using signatures. Also, I would like to know if CAPEC is actually an attack pattern language that can be used for such purposes. Thank you‏

PS: If I am not at the right place to ask this question I would be grateful if someone could redirect me to a place where I could get some advice.