To defend against PHP attacks, the number of attacks almost disapear, with this small technique that I apply last night. The number of visit decrease too, but since most of them were bots, I am not surpised. I really prefer to have few readers, than a notion of having a lot, being all of them, false.
I don't know if SysAdmins apply this rule I figure out in their company sites, but I see that the traffic that was growing based on this wordpress attacks, almost disapear. Naturally today I had 3, from different places, but compared to yesterday that I had about 10, is a good sign.