Look at str2, it says poutinecoutu
Seems to be the username of someone in Quebec (Canada), coutu being a very common last name and poutine being the national dish.
This nickname has been used quite a lot on different hacking forums:
https://www.google.com/search?q=poutinecoutu&aq=f&oq...
As I had noted in another comment, this product that this person is using is advertised on hackforums. (https://news.ycombinator.com/item?id=5531500) So I've gone on hackforums, searched for poutinecoutu, and what do you know? This might be him.
FoxyJava is a Java Drive-By, similar to this GalaxyJDB the exploit used. I wonder if he has also used GalaxyJDB? I can't see any replies, but it's possible. Let's go to the galaxyjdb site and see if the person who programmed the login was dumb enough to check username and password seperately: http://galaxyjdb.com/index.php?a=Login
...sadly not, it would seem. So I can't prove they use GalaxyJDB, or that this is even the person we're after, but I think it's very likely.