I had a chat with a guy on Stackoverflow:
http://stackoverflow.com/questions/1...cutable-binary
Where he claims, that the hackers, have uploaded a symlink to his hosting directory and were able to access his dir from some other account on the server.
This has completely puzzled me, cause I am sure, that it's impossible to access the dir using a symlink, if you don't have sufficient rights. Does anybody know, how this could happen?