Steps to avoid “This site may harm your computer” note in Google Search Results:
- Clean your computer with any Good Antivirus software (NOD 32, Norton or Microsoft One)
- Change the FTP password of your website and other sensitive data
- Download the website and clean it antivirus and upload or reload the unaffected website from backup’s, if you are using any third party CMS, upgrade with the latest patches
- Check if any forms in your website is accepting special characters, if so disable special characters insertion, Examine your own PHP or ASP.NET code for security holes
- Change the FTP password after the upload
- Register at http://www.google.com/webmasters and submit your website for reconsideration
- Allow 24 to 48 hours to respond for your reconsideration request to Google
More information: http://www.google.com/support/webmasters/bin/answer.py?answer=35843&hl=en
