Index.php Hacked

[sateurope]

Hi all.

Just like a lot of other forums our Index got hacked last week.
After 2 times replacing the index from the update, we noticed that the index is in
777 mode(read write and execute for all)
To secure this , you have to set it to 644 (read for all en write only by owner)

Note that every time you do a install or upgrade the index you get is in 777 mode