there are so many anti virus software's for SharePoint. here is the lists
Please check the below link to get the details regarding the anti virus software's for SharePoint.
Antivirus and SharePoint
Update: Here is an another Excellent Article Antivirus for SharePoint 2013
Here are the few points from the Antivirus for SharePoint 2013 link
Symantec Protection for SharePoint Servers
Familiar vendor to a lot of environments
Can be used with Symantec Enterprise Vault for SharePoint and Symantec Backup Exec for SharePoint to deliver a comprehensive security, archiving, and data recovery solution.
ESET® Security for Microsoft SharePoint Server
First engine for SharePoint 2013 – very customisable / powerful.
Very light and efficient antivirus
Kaspersky Security for Collaboration (SharePoint)
Light and well known vendor, well trusted security solution
Hope it helps