If your website is marked as “This site may harm your computer” by Google, most likely your site is hacked. In that case, log in to Google Webmaster Tools and it will shows you which URLs are “infected”. This should help a lot to clean the malware.
So make sure you have configured Google Webmaster Tools for your live websites.
The most common form of malware could be found in the following locations
- .js
- .htaccess
- <iframe>
Follow the URL below and clean all the malware, then you can request Google to review the website at Google Webmaster Tools.
Done =)
Reference:
- Google Webmaster Tools
- Stop badware – Tips for Cleaning & Securing Your Website
- How to fix ‘This site may harm your computer’?
Eureka! 
Hey ykyuen,
Nice article. It will help to many people when they are face such type of problem
Why should you not write 1 article where security in code is less. Means post an article where Hacker attacks on website.
So developer & other also know where should be there security is less.
Thanks & Reply
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Hi Sandy,
Actually i am not familiar with those website security issue. I would like to share later if i learn more about that. =D
Thx~
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