The injected code points to itsallbreaksoft.net
This then bounces through paymoneysystem.info/in.cgi?michaeleknowlton before hitting a seemingly random PPC search engine site hosted on 188.8.131.52, for example sdeh.net/iframe.html. Sophos have an excellent write-up of the anatomyof the injection attack here, and it's pretty clear that somebody is ripping somebody else off for PPC traffic.. its hard to say who the victims actually are.
The domains itsallbreaksoft.net and paymoneysystem.info belong to the same person, these are interesting because of the registration details:
Nexton LimitedThese contact details are very well known for very bad things. Incidentally, the registrar is ruler-domains.com, also an enterprise registered to "Sergey Ryabov" (if that's a real person).
Ryabov Sergey (firstname.lastname@example.org)
Scherbakova st., 6-38
It's all kind of strange as there doesn't appear to be a malware payload, which is good. But because of the way click arbitrage works, finding the real victims and villains is tricky, although interested researchers may want to have a poke around.