Here are the most dangerous viruses I have encountered

Here are the list of virus I have found by the Avira and Avast!:

• Sality (Program infecting and modifier.)
• Palevo (Disable the format function and the Folder Option of the C.P.)
• Hakaglan (Spool drainer of Epson printer LX-300 series.)
• Frethog (Password Stealer.)
• VB-Nik (Disable the loading operation of Power DVD and the Macromedia flash player.)
• Flot (JPEG file damager.)
• Rootkit-gen and Confi (Autorun.inf modifier and loader.)