Next attack - this time - phishing

Hi there,
after the first hack now i got a bigger problem.
Somebody implemented a phishing-Site of an US Bank on my Webspace.
Is there maybe a possibility to check my webspace against all know-security-risks? Maybe a tool?
I got no idea whats possible(necessary) to secure my webspace .. 2 attacks within 2 months - not good.
Hopefully IM3 will be released soon ..
after the first hack now i got a bigger problem.
Somebody implemented a phishing-Site of an US Bank on my Webspace.

Is there maybe a possibility to check my webspace against all know-security-risks? Maybe a tool?
I got no idea whats possible(necessary) to secure my webspace .. 2 attacks within 2 months - not good.
Hopefully IM3 will be released soon ..