To remove “Reported Attack Site!” tag from your web site at the earliest, you can use Google Webmaster Tools to analyze your web site. Using this tools, you can easily find the infected pages of your web site and then you can resubmit the request to Google.

Ok, why so many web sites marked as “Reported Attack Site!” by Google with following  message: How to remove “Reported Attack Site!” tag from your website.

“This web site at XXXXX.com has been reported as an attack site and has been blocked based on your security preferences.

Attack sites try to install programs that steal private information, use your computer to attack others, or damage your system.

Some attack sites intentionally distribute harmful software, but many are compromised without the knowledge or permission of their owners.”

As I search online, and find there are few reasons in which Google marks the web site as harmful site. Some of them are as follow:

1. If your web site pages are infected with malicious IFrame or JavaScript code. Generally, such Iframe and JavaScript codes link your web site to another maleware site.

2. Your site is hosting phishing page.

There are many reasons for JavaScript and Iframe code injection in your web sites.

1. If you have installed updated version of third party scripts, template, theme etc.

2. The tird party scripts which you are using in your web site are not secure.

3. Your FTP password is compromised.

4. The system from which you are managing your web site is infected by Maleware, Trojan, Spyware, Virus etc.

5. Insecure folder permissions set in your web site.

Ok, you can check your website as above list as soon as possible, because this reported will decrease your website traffic from Google search, and also can lost more old visitors.