I looked through attacks in my access logs. Here's what I found
nishtahir.com
nishtahir.com
Also has great, modest, explanations of the attacks, complete with references so you can decide for yourself if the author has correctly attributed which type of vulnerability the bottom- feeders are looking for.
Makes one wonder how much time/energy/resources is spent on such botnets.
One could just as easily assume that the mere scans are aggregated and sold later. If your HTTP server gives back a file "aws.yml", the URL may just get sold. It's well known that cyber criminals work in an economy with division of labor, and specialize in particular skills.