I am using the ASUS K70IC Notebook (Intel Core 2 Duo P8700, NVIDIA MCP79D Chipset , 6GB DDR2 800MHz Memory, 512GB HDD, DVD RW, Windows XP). I use it mostly for my business purpose only. But when i am at home, my son us ti for gaming and internet purpose. He download many things from internet and play online games also. I have install McAfee trial version of antivirus in laptop. Recently, it showed the alert that your system is infected by TROJ_PIDIEF.VF. I have no idea about this alert(malware), and don't how should i remove it?? Please help me out on this.