REMOVE VIRUSES FROM PENDRIVE

If your Pen Drive infected with any of the following viruses then delete them all:

Autorun.inf
virus-pendriveAutorun.inf
New folder.exe
Iexplorer.vbs
Bha.vbs
nfo.exe
New_Folder.exe
ravmon.exe
RVHost.exe or any other files with extension.

Actually, these viruses are hidden and can’t be seen even after you enable show hidden folders. Following simple dos command will change the attributes of these files ,there after you can remove them.
Steps:

Step1.: Type cmd in Run

Step2.: Switch to the drive on which pen drive is connected (like C:\> h: enter..here h is letter of your pendrive)

Step3.: Type exactly as attrib -s -h *.* /s /d and hit enter (don’t forget spaces).

Now you can see hidden virus files and you can delete them