Hello All Gurus - We had this virus in our file servers which was changing the Excel files extension to AAA. We did identified and isolated those file servers. My Question is how should we be sure that SharePoint Database is safe and no files has been uploaded with AAA extension and that database is not infected. 

Regards,

Hi,

Please check these links

http://www.harbar.net/archive/2013/02/22/Antivirus-and-SharePoint-2013.aspx

http://sharepoint.stackexchange.com/questions/106202/running-anti-virus-software-on-sharepoint-2013-wfe-and-db-servers

https://social.technet.microsoft.com/forums/sharepoint/en-US/bab1a929-d98e-40a8-9a85-5ccc0177f3cc/onprem-antivirus-solution-for-sharepoint-2013

Hi Khushi- you could run a powershell script to find any instances of the AAA extension.

HI Khushi,I think you have installed some sort of antivirus in the servers,You can check the logs of Anti virus and get to know that the DB is infected with virus or not.Please check the link below that explains more details about the various antivirus patterns if your not installed in your farm.Some of the folders we need to excluse from antivirus to function properly.Please check the link that shows the same.

http://expertsharepoint.blogspot.com/2014/03/antivirus-for-sharepoint.html

http://expertsharepoint.blogspot.com/2014/06/antivirus-exclusions-for-sharepoint.html