McAfee VirusScan Plus 2009 (3 Users) for $9.99 shipped after this $40 rebate. Here is a screenshot for your reference. This program helps shielding PCs from viruses, spyware, and has a firewall to protect against network attacks. It also features McAfee SiteAdvisor, which is an online safety guide that warns about risky web sites before users visit them. Most places have this McAfee program for about $50.