Comodo Internet Security Pro 2012 will help you out. Only antivirus is not enough! Get an all-in-one protection and GUARANTEE your safety 24/7. it has the following features enabled in it!
Antivirus: Prevent all Virus, Spyware
AntiMalware: Prevent all Malwares
Firewall: Prevent all online attacks and trojans
24/7 instant remote tech support
$500 Virus-Free Guarantee
To know more about it try here http://www.comodo.com/home/internet-security/antivirus.php