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ANTIVIRUS BOOT II doc
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1978-01-06
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System-Z VirusProtector - The Manual
The System-Z VirusProtector will kill and destroy both the SCA Virus and the
Byte-Bandit virus. But it does more than that. It will PROTECT your
diskettes against them as well.
At first the main screen. at the lower side of the screen are four
gadgets, marked HELP, QUIT, WRITE and READ. HELP will give you some pages
of information about the System-Z VirusProtector (you're reading them).
QUIT will return you to the Workbench/CLI. WRITE will kill a virus on the
selected drive (more on that later). READ will read the bootblock and check
it on the presence of a virus. It will then highlight one of four options:
-NORMAL DOS DISK- This disk is completely safe to use
-BOOTBLOCK IN USE- It is not a standard bootblock. May be a intro, or a
loader for a game (for example BARBARIAN). Could be a
new virus. Watch out.
-SCA VIRUS- There is a SCA virus present on this disk. KILL!!!
-BYTE-BANDIT VIRUS= There is a ByeBandit virus on this disk. KILL!!!
So far, everything should sound fairly straightforward. But the power of
the System-Z VirusProtector is not in killing the virus, but in protecting
against a virus!
Because, instead of writing a stupid intro (RA VirusKiller) or a plain
bootblock (all others) on the disk, the System-Z VirusProtector writes a
COMPLETE NEW VIRUSKILLER on the infected disk. This bootblock will, once
loaded (just by resetting the computer with the disk inserted), stay
resident in memory, even after a reset. it will flash the screen green when
it's loaded, to indicate that it has installed itself succesfully in the
upper part of the memory (at $7c400, to be precisely).
It will now be activated during a reset, just after AmigaDOS has loaded a
bootblock for execution, but just before actually executing it. It then
quickly checks the contents of the bootblock, and warn you if it contains a
virus. It will then give you the option of either killing the virus on the
disk by pressing the LEFT mousebutton, or leave it on the disk pressing the
RIGHT mousebutton. Of course the virus will be cleared from memory. While
killing a virus, it writes the protective bootblock instead of just clearing
or installing it.
To indicate that the VirusProtector is still active after a reset (and not
overwritten by some game or intro) it will flash the screen light-blue while
playing a short sequence of tones. If you press and hold the left
mousebutton before the screen colours blue, the protective bootblock will be
written to the disk even if there's no virus on the disk. This is useful
for protecting a lot of diskettes in one batch, or if you suspect a new,
unknown virus to be on the disk. You can release the mousebutton if the
screen colours green. It you press the right mousebutton before the screen
colours blue, the VirusProtector will be removed from memory. This can be
useful if you think that the VirusProtector disturbs some program, or if
you're sick'n'tired of that tweaking after every reset.
Well, not much more to say I guess, just: GOOD HUNTING
P.S.: you may have seen our pre-version of the VirusProtector somewhere, it
just checks the memory for the presence of a virus. It is also
reset-resident, but colours the screen dark blue instead of light-blue STOP
USING IT. because it won't work under Kickstart 1.3 (this one will) Thanks
to Klein Manneke Stanneke of Madness dev. (now also System-Z) for spreading
this (PRE-RELEASE!)version (grrrrrr!)
P.P.S.: if you have an Amiga 1000, look out for our AntiVirus Kickstarts.
They come in different Flavours (KS V1.2AV, KS V1.3AV and even a special
version of Level42 One-Mega Kickstart with protection against ByteBandit)
P.P.S.: The colours mentioned in this text are liable to changes. there
are verions out there wich give completely different colours. The colours
mentioned here are the newest. (the version before had a light brown
screen, for example)
P.P.P.S.: A special HI to all my friends who have made this possible.
P.P.P.P.S.: You'll be hearing more from System-Z in the future.
P.P.P.P.P.S: System-Z is: ASS, Madness, and some more.
P.P.P.P.P.P.S: Always interested in good contacts for swapping. Write to:
>> System-Z, Welvaartstraat 15, NL 5684 ZJ, Best, Holland <<
P.P.P.P.P.P.P.S: This version was spread in Nijmegen, 11/6/1988
P.P.P.P.P.P.P.P.S: Amiga Forever!
P.P.P.P.P.P.P.P.P.S: Some guy needed 60K code to do less than this
bootblock on an Atari ST (HI CRONOS!!!!)
P.P.P.P.P.P.P.P.P.P.S: Get our CopyDisk V1.0 (V2.0 will be out SOON!)