Attack!

I've recently noticed repetitive attacks from various Russian IP addresses that are trying to access the files "easyboard.php" and "sign.php" on my websites. There are no links to these files on my site, and they do not exist.
I am assuming that a vulnerability was discovered in that PHP software (it's a bulletin board script), and that hackers are trying to take advantage of that by randomly accessing websites with the hope that some of them have installed the software. Please be warned.

 

I wonder if it's this guest book?

Spaced to avoid live link... h t t p : //www. onlinetools .org/tools/easyboard.php

 

Wel how do we know we are attacked? I also want to check it out...

 

I will venture a guess and say the server logs. Perhaps the 404's if you don't have that file?