Hi Mohd Aman,
Follow these step to remove the virus -
1. Insert your pen drive into one of the available USB outlets on your computer. If a program dialog box displays, select "cancel." Do not double-click on the drive icon to open the drive.
2. Double-click on the "My Computer" icon on the desktop. Select "Tools," "Folder Options" and "View" from the menu bar. Make sure that the radio button next to "Show hidden files and folders" is selected. Uncheck the box next to "Hide extensions for known files." Uncheck the box for "Hide protected operating system files (Recommended)." If a warning message displays, click "OK." Click "Apply" and "OK" to save all changes.
3. Verify the drive letter that represents your USB or pen drive. For example, if the drive displays as Kingston (M:), the drive letter would be "M".
4. Click on "Start," "Run"; type "cmd" and press "Enter" to open the command prompt window.
5. Type the drive letter, for example, "M" followed by a colon (":"), and press "Enter" at the command prompt to open the root directory of the drive.
6. Type "dir/w/o/a/p" and press "Enter" to display a list of files and folders present on the flash drive. Note the existence of any of the following in particular:
Autorun.inf
New Folder.exe
Bha.vbs
Iexplore.vbs
Info.exe
New_Folder.exe
Ravmon.exe
RVHost.exe
svchost.exe
Heap41a
Any miscellaneous file name with an .exe extension
Any unfamiliar files
7. Unprotect the files to enable deletion. From the command prompt, type "attrib -h -r -s autorun.inf" and press "Enter."
8. Repeat Step 7 for each of the files identified in Step 6.
9. Delete each of the files that have been unprotected by typing "del", pressing the space bar and typing the file name, for example, "del autorun.inf".
10. Type "exit" and press "Enter" to return to the Windows operating system. Your USB flash drive is now virus free.
Thanks
Eric