Symantec Anti-Malware Virtual Appliance Solution for ESX??

Hi,

Does Symantec provide any kind of Virtual Appliances for VMware, capable of detecting viruses and other malware on the rest of VMs that reside inside a ESX server? I'm asking because a client said that he had heard about such product, but can't remember its name. He wants to buy it for his virtual environment, and asked me to help him find more information about it.

Thanks in advance.