Kragdor is a virus that is usually transmitted from PC to PC via portable hard drives (Flash Thumb-sized drives), and I suspect also through the Local Area Network. Now, the weird thing with this virus is that it's not new, but all of the AntiVirus program's CANNOT detect it. Not only that, but there is no way of actually SEEING the file within a folder. So there is no commercial cure for this computer disease besides ERASING your ENTIRE OS or flash drive, however, there is a makeshift solution that was discovered by this author.
The first step in any bug hunting situation is to assess whether or not you have the virus. First, check your thumb drive if it has the bug by going to My Computer, and RIGHT click on the thumb drive. If you see two Opens with one being "0pen" and the other being "Open", you know you've got kragdor in your system.
Next, check YOUR computer if it has kragdor by pressing ctrl+alt+delete to bring up the windows task manager. Click on the Processes tab, and click on Image Name to alphabetize all your system processes. If you see krag.exe, you surely have the bug. Click on krag.exe and end process. This just freezes the bug, but doesn't cure it: it will appear the next time if you boot up.
Curing the bug from the flash drive and the Desktop is very easy and very simple: just follow the steps that I've laid out.
The situation now is that you have a virus in your Desktop and your flash drive: the priority is to get the virus out of your flash drive first. Before doing this, disable krag.exe via the Windows Task Manager>

rocesses>EndProcess procedure that I had explained earlier. This prevents krag.exe from reinfecting your flash drive.
Next, copy out all your files from the flash drive into your desktop. Then, go to My Computers and right click on your flash drive to bring up a menu. Select Format and click okay. This erases everything in your flash drive, including krag.exe. Now, load the files back in by copying and pasting. The flash drive is now sanitized, congratulations.
Next, its the Desktop's turn. One thing that the author discovered was that the location of the executible krag file is located within the Windows folder. Unfortunately, there is a complicated masking system which disallows the normal user to see the krag.exe file. The solution to this is fairly simple:
First, on your navigation window (where you see your files) look up at the toolbar. Select Tools, select Folder Options, select View, and search for the option "Hide extensions for known file types" and make sure it's unchecked.
Second, go back to C:\ and right click on the empty space and create a text file. Name it "Krag.exe" and click on okay. This is NOT Krag.exe the virus; this is Krag.exe the useless file. Copy the new Krag.exe and paste it within the Windows folder. Overwrite the old real Krag.exe virus with the new, inert, and completely friendly Krag.exe file-which-is-really-a-text-file-with-nothing-in-it.
Third, pop open a can of beer or wine and celebrate in your triumph as you've just ridden yourself of a potentially debilitating krag.exe virus.
Fourth, if you liked this post, please spread the word and link it back here. Thank you for your time, and thanks for trusting this guide to exterminating the computer virus called Krag.exe