Somehow I receive many weird requests from one of Googlebot's. These use some very strange HTTP header, if I can even call that a header! modsecurity blocks all of them at once, but it just seems very strange since it has nothing to do with HTTP.
The two requests I have seen go like this:
0x16 0x03 0x01
0x80 0x2B 0x03 0x01
As you can see I show you the hexadecimal codes because these are controls!!! (Ctrl-V, Ctrl-C, Ctrl-A in the first request, and PAD, +, Ctrl-C, Ctrl-A)
I just have no idea what that is. I'm glad that modsecurity kicks those request out, but I'm wondering why am I