Hello Andre,
I don't think that you have any virus affected files on your site. It seems to be the combination of the Mozilla FireFox browser and Symantec that causes the error. If I use another browser, Epic I do not get the error. If I use Firefox and McAfee I do not get the error. I am unaware how Symantec arrive at the conclusion they do, however as soon as I try to open purearea.net, a popup screen shows with the following text.
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Dangerous Website Blocked
You attempted to access:
http://www.purearea.net
This is a known dangerous website. It is recommended that you do NOT visit this site. The detailed report explains the security risks on this site.
For your protection, this web page has been blocked. Visit Symantec to learn more about phishing and internet security.
Exit this site
[visit this web page anyway.]
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Looking at the detailed report from the above gives the following information:
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Norton Rating
Safeweb Share
Norton Safe Web has analyzed purearea.net for safety and security problems. Below is a sample of the threats that were found.
Summary
Computer Threats: 11
Identity Threats: 0
Annoyance factors: 0
Total threats on this site: 11
The Norton rating is a result of Symantec's automated analysis system. Learn more.
The opinions of our users are reflected separately in the community rating on the right.
Community Reviews (0)
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Beyond the above I cannot be of further help as to the cause but I haven't had an issue when I've been on the site with another browser & McAfee. I haven't as yet opened the site from the [visit this site anyway] button when using Firefox & Symantec
Regards, C87