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STR#_208.txt
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1995-11-21
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before sending them out to be duplicated and distributed.
ΓÇó If you sell software, please check your master disks for infections
software you receive.
distributing it. You should also, of course, run VirusScan on all new
Mac community. Please carefully test all new software before
public domain and shareware software have a special responsibility to the
ΓÇó Bulletin board operators and other people who maintain and distribute
WDEF virus for details.
recommend deleting the Desktop file if it exists. See the section about the
grant the ΓÇ£make changesΓÇ¥ privilege on server root directories. We also
AppleShare server. To avoid these problems, administrators should never
ΓÇó The WDEF virus can cause serious performance problems if it infects an
backup.
ΓÇó Back up your servers frequently. Run VirusScan just before each
ΓÇó Check all new software with VirusScan before installing it on a server.
discussion in the ΓÇ£Special FeaturesΓÇ¥ section.
on the server disk. For more details on scanning servers, see the
the only way to guarantee that VirusScan will be able to scan all the files
and restart it using your Virus Tools or emergency startup disk. This is
uninfected. For best results, you should take the server out of production
ΓÇó Check server disks frequently with VirusScan to make certain they are
when it is possible.
write-protected folders, but you should make every attempt to do this
own file or folder, it is not always possible to put applications in
spread very rapidly. Since some applications insist on writing to their
protected by a VirusScan Extension. This is one way in which viruses can
will in turn quickly infect any other Macs on the network which are not
infection to the application on the server. If it is a popular application, it
network which accesses the disk and uses the application might spread the
application is in a writable server folder, any infected Mac on the
not have the ΓÇ£Make ChangesΓÇ¥ privilege. On the other hand, if an
disks. Viruses cannot infect applications if they are in folders which do
ΓÇó Try to put software in write-protected folders on AppleShare server
the application. Distribute printed copies of the VirusScan manual.
against them. Give them copies of VirusScan and teach them how to use
ΓÇó Educate the people in your organization about viruses and how to protect
discovered that students love to play with the start-up disks.
Extension is still installed and active on all your startup disks. We have
they are uninfected. Also check to make certain that the VirusScan
ΓÇó Check all your lab disks frequently with VirusScan to make certain that
ΓÇó Install the VirusScan Extension on all your lab startup disks.
make certain that their software is free from infection.
viruses. People who sell software also have a special responsibility to
share Macs, or share a Mac network, is a perfect breeding ground for
domain and shareware software. An environment where many people
networks, Mac laboratories, Mac bulletin boards, or collections of public
The remaining recommendations are for people who manage Mac
are clean.
backup. This has the added advantage that it makes certain your backups
One strategy which many people use is to do a full scan just before every
every once in a while will detect any such infections.
installed, it is possible for a virus to infect your hard drives. Doing a scan
start up from a floppy disk which does not have the VirusScan Extension
just to make certain that they are still uninfected. For example, if you
You should, however, periodically do a full scan of all your hard drives
VirusScan Extension do its job and trust it.
It is also not necessary to scan your hard drives frequently. Let the
block viruses before they can spread or cause any damage.
as you have the VirusScan Extension properly installed, it will detect and
to scan all floppy disks before using them. This is a waste of time. As long
Macintosh. It is not necessary to scan all new software before using it or
For most people, this is all you have to do to protect your personal
against known viruses and makes no attempt to detect new viruses.
viruses. This is particularly true of VirusScan, which only protects
versions of anti-viral software are very often ineffective against new
ΓÇó Keep your anti-viral software up-to-date. This is very important. Old
ΓÇó Make periodic backups of your hard drive, at least once per week.
for a virus to infect files on a locked floppy.
a copy, and use the copy. Never unlock the original disk. It is impossible
new piece of software, immediately lock the disk on which it came, make
ΓÇó Keep original software on locked floppies. Use copies. When you obtain a
takes a minute to install and it can save you much grief.
ΓÇó If you do nothing else, religiously use the VirusScan Extension. It only
viruses.
minutes per week to effectively protect your Macintosh against the known
should take the problem seriously. Using VirusScan, it only takes a few
There is no need to panic over the current virus situation. However, you
åRecommendations
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