BackDoor PolyDrop Removal:

• Click Start, point to Programs, and then click MS-DOS Prompt.
  
• Type cd windows in the DOS window, and then press Enter.
  
• Type copy regedit.exe regedit.com and then press Enter.
  
• Type exit and then press Enter.
  
• Click Start, point to Find, and then click Files or Folders.
  
• Type regedit.com in the box, and then click Find Now.
  
• Double-click the Regedit.com file in the results pane
  
• Start the Registry Editor, and then proceed to the Edit the registry section.
  
• Proceed to the Edit the registry section.
  
• Click Start go to RUN , Type In REGEDIT
  
• Look for the following keys
  
• HKEY_LOCAL_MACHINE\Software\Classes\exefile\shell\open\command
  
• Double-click the (Default) value in the right pane.
  
• Delete the current value data, and then type: "%1" %*
  
• Close the Registry Editor and go on to the next section.
  
• Edit system files
  
• Click Start, and then click Run type sysedit and enter