Its a virus called HEAP41a it will be loacted in c drive.. to view it
go to c:\heap41a
just copy and paste the thing in the address bar of my computer.. delete all the contents of the folder then follow this thing

1. Go to your Start menu, click on Run and open up your Registry Editor by typing “regedit” without the quotes and pressing OK.

2. Once there go to: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folde r\Hidden\SHOWALL

3. Delete the value CheckedValue. (Its type should be REG_SZ and data should be 2.)

4. Create a new DWORD value called CheckedValue (same as above, except that the type is REG_DWORD) by right clicking on the right pane->New->DWORD Value. Modify the value data to 1 (0×00000001).

This should let you change the “Hidden Files and Folders” option.

*Modify the Registry carefully. One wrong move and you’ll screw up your PC !