Cause: Sites that are attacked by Malware, Virus, Trojan or any other hackers.
You can use the manual action viewer and the Security Issues tab in WMT to identify whether your site is penalized as “HACKED SITE” or not.
If you discover this penalty on WMT that indicates the following,
- Google found some pages on your site that are hacked by hackers or attacked by malwares.
- Hackers upload files or modify existing files on your website.
Here is an example for the Reported attack page: flixya.Com
- You’ have to learn technical assistance of your website as well as contact your web hoster to recover your site from the hackers.
- After removing this security issues, you need to carry out the backlink analysis, send the Disavow and Reconsideration request to Google with the efforts of removing this issues.