NYB - Removal

Risk Level 1: Very Low

Discovered: February 17, 1995

Updated: February 13, 2007 11:47:37 AM

Also Known As: B1

Type: Virus

Read all the instructions before you begin.

CAUTION:

If you do not correctly perform the steps described in this document, data loss could result. Unless you are completely familiar using the DOS FDISK command, we suggest that you obtain the services of a qualified computer consultant.
If your computer uses a Dynamic Drive Overlay, or if you are not sure, first follow the instructions in the document, "How to repair a virus when using a dynamic drive overlay or a disk compression utility."

Removing the virus

Shut down Windows, and then turn off the power. Do not simply press the reset button.
Wait 30 seconds for the memory to be cleared.
Do only one of the following:
- If you have a Norton AntiVirus 2001 (or later) CD, and your computer can start from the CD-ROM drive:
  1. Insert the Norton AntiVirus CD in the CD-ROM drive.
  2. Restart the computer and follow the prompts.
  3. Choose to repair all the infections.
  4. Remove the CD from the CD-ROM drive, and then restart the computer.
  5. Start Norton AntiVirus, and then run a full system scan.
- If you have a current Rescue Disk set, or can create one on an uninfected computer:
  1. Insert the first, write-protected disk of the Rescue Disk set in the floppy disk drive.
  2. Restart the computer and follow the prompts.
  3. Choose to repair all the infections.
  4. Remove the floppy disk, and then restart the computer.
  5. Start Norton AntiVirus, and then run a full system scan.
- If you do not have a clean Rescue disk or a Norton AntiVirus 2001 (or later) CD:
  1. Insert an uninfected, write-protected, bootable disk, which also contains the FDISK program, into the floppy disk drive. Then restart the computer.
  2. Type the following, and then press Enter:
    
    fdisk /mbr
  3. Remove the floppy disk, and then restart the computer.
  4. Start Norton AntiVirus, and then run a full system scan.

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