Open security training has a new class out some might like.
Flow Analysis & Network Hunting:
http://opensecuritytraining.info/Flow.html
Comments on course:
This course focuses on network analysis and hunting of malicious activity from a security operations center perspective. We will dive into the netflow strengths, operational limitations of netflow, recommended sensor placement, netflow tools, visualization of network data, analytic trade craft for network situational awareness and networking hunting scenarios
