My sites been... comprimised

[murekhalir]

I was told by my host that my site has been comprismised.


http://40kterra.com/28-11-2008-40kterra.com.jpg

That my site was extremely going overload on my shared server usage.

My awstats began to run all crazy.

http://img.photobucket.com/albums/v6...uron/stats.jpg


My host said this:

Most of your .htaccess files contain 'ErrorDocument 404 //forums/67370.php'. This indicates that your site has been compromised and there are backdoors left.

My site was running on 3.73... did this have to do anything with a big vulnerability with my website?

My host gave me these two options....


1. Cleaning all of the suspicious code in your files. The price is $50 one time. This is a partial solution which does not prevent your site from being hacked again. If this is your choice, please follow this link .

2. Cleaning all of your files, updating your outdated applications and securing additionally your site. The price is $150 and gives maximum protection to your site. If this is your choice, please follow this link .


I'm unsure what I should do. I can just hire the 50$ solution, change all my passwords, and update vbulletin, or should i spend the extra 100$.... But their service for that seems rather vague. Has anyone run into hacking? How should i deal with it. Any tips will be great!