Lovely, sadly i don't know as much about how to identify viruses with php but sadly my toolkit is limited only on server side scripts. As far as i know viruses are not really able to catch via script, but secure gateways such as
zorp, which identify the unnatural package transmissions.
Martin, thank you for your kind words i am thinking on this, but i need to learn hacking as first. Of course i am thinking on ethical hacking, but you must know how to attack a script/server to know how to defend it, so it will be a long way and i am only at the startline at the monent. My sister work for an information security company called Kurt, i guess you have never heard about it, but there works one of the biggest hackers on the whole planet. He was disqualified from the hacker world champion because he used some tool which was not allowed

I want him to be my mentor. Sweet dreams
I would like to release only FREE defending scripts in the future which cover wider area of web based attacks that might be installaed easily for everyone.