
 This is a revised version of the NetZ tools, first released in 1994.
 This version contains improved features, concurrent with InVircible
 version 6.10.

 FIXBOOT.
 --------
 FixBoot can be used as a generic utility to clean the boot sector of
 floppies by installing a generic boot sector to them. FixBoot can
 process floppies from 360 kbyte to 2.88 mbyte. The floppy to be treated
 should be placed in drive A or B and the first argument following
 FIXBOOT on the command line should be either A: or B:.

 FixBoot will usually identify the size of the floppy and install an
 appropriate boot sector. In the instance that the diskette is
 inaccessible, such as after being infected by certain boot infectors,
 the /S (size) switch can be used. FixBoot will prompt for a floppy
 size. Just select from 1 to 5, according to the floppy size.

 FixBoot installs a standard MS-DOS 4+ boot sector, and the floppy will
 be bootable if it contains the system files. FixBoot will identify if
 the floppy has MS-DOS or PC-DOS/DR-DOS files and install an appropriate
 boot sector to keep it bootable. Yet the user may force an IBM boot
 sector (MS-DOS is the default) if needed, by adding the /IBM switch to
 the command line.

 This version of FixBoot will let process floppies in bulk. All the user
 need to do is to answer 'Yes' when prompted if to process another
 floppy in the same drive.

 Creating a CLEAN bootable floppy on a computer that is infected with a
 boot virus: Format a floppy in the boot drive with the system option
 (FORMAT /S). Issue the command FIXBOOT A: and remove the floppy from
 the drive immediately when done, or it may become infected again.

 SWAPBOOT.
 ---------
 There are instances in which you may want to swap roles between the
 physical floppy in drive A and B, without needing to open the
 computer's cover. For example, you may need to boot from a floppy that
 suits drive B's format, not drive A.

 SWAPBOOT will install a special boot sector to a floppy in drive A.
 When booted from, it will prompt with several options. The default is
 booting from the hard drive, after a predetermined delay, even if the
 floppy is left in drive A.

 If F2 is pressed during the boot delay sequence, then drive A and B
 swap roles. The BIOS will seek for a bootable diskette in drive B, and
 boot from, if there is one. After booting, physical drive B will be
 assigned as A for ALL purposes, including formatting etc., and physical
 A will become B. Until rebooting the machine.

 XMONKEY
 -------
 Monkey is a common boot-mbr infector. When there is more than one hard
 drive on a computer, all the hard drives' partition sectors will be
 affected too. While Monkey is active in memory, all drive will still be
 accessible. If the virus is removed from the first (master) hard drive,
 without taking care of drive 2 and higher, all access to the higher
 drives will be lost.

 XMONKEY will remove Monkey from all drives and recover access to all
 drives, if due to the improper removal of Monkey. XMONKEY will seek for
 up to 8 chained hard drives.

 Since XMONKEY uses the SeeThru (c) technique, embedded in InVircible,
 it will function even if the virus is active in memory. XMONKEY can be
 used from the infected hard drive itself, or from a floppy diskette,
 after booting clean from DOS.

 **********************************************************************
 Fixboot, SwapBoot and XMonkey are the copyright (c) 1994-95 of Zvi
 Netiv, all rights reserved. All three are derived from InVircible
 technologies.

 The three above programs are hereby donated by the author to the public
 domain.
 **********************************************************************

 -----------------------------------------------------------------------
 Zvi Netiv, author InVircible   Internet Web Page: http://invircible.com
 NetZ Computing Ltd, Israel  Voice: +972 3 532 4563  Fax +972 3 532 5325
 email: netz@actcom.co.il    netz@datasrv.co.il   CompuServe: 76702,3423
 Anonymous ftp:    ftp.datasrv.co.il/pub/usr/netz/    ftp.InVircible.com
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