This is using Sophos anti-virus. One of the USB external HDD - 320GB was found with viruses. I installed Sophos and successfully detected most of the viruses. The main issue now is, whenever I un-plug and plug in the above external HDD, Sophos always show a virus is detected on autorun.inf file. The file is attributed system, hidden, and read-only. Even I un-hidden these 3 attribs, and eventually deleted it, it re-created itself again.
Any way to delete the virus one for all?