Massive traffic - split off download manager traffic

Hey people. I hope this is the correct forum to post as I'm looking for a tool to do this job!

I recently bought a domain that was once a very large file sharing/hosting website (I can't say what it is and is kind of irrelevant anyway!). The website offered a free download manager. Aside from the expired and type-in traffic this name gets, I also see a lot of traffic which appears to be coming from the old download manager.

The question: I can split off type-in and expired traffic with some PHP code no problem, but what can I do to split off the traffic supposedly coming from the download manager? How am I going to be able to identify this traffic?

The reason I want to do this is to experiment to see if there is any value in this traffic alone.

Any help is great!

Thanks.
WW

Do you have the http headers sent by the download manager traffic?

Maybe you can find something in the headers that you can use to filter the traffic!