I'm guessing you're talking about anti-virus definitions update version?
As I don't use it, I can't really help, but I'm guessing you'll have to create a meta key to store the value (if it doesn't existe yet), and then use that meta key to create a report / chat.
What meta data is currently provided by your anti-virus logs? This will be a key component in any charting or reporting you want to do. Without this info it will be very difficult to assist you.