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CANARY.DOC
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1991-10-10
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For centuries, miners have brought a canary down into the mines with
them. They do not do this for the company or for the music; they do it
because a canary will die from small amounts of deadly gasses prior to
the miner feeling adverse effects. Installed and used properly, The PC
Canary may become infected by a computer virus and give you enough
warning to eradicate the virus and recover before serious damage is done.
The PC Canary is a passive virus detector which gives an alarm when it or
its data file becomes infected. The PC Canary scans for all types of
computer virus that infect your command processor, .exe programs or .dat
files, ie., virtually all viruses. It is able to scan itself even for
viruses that haven't been written yet, since it detects the effects of
the virus, rather than the virus itself.
The advantages of a passive virus detector include:
* Low maintenance. Since it detects the effects, rather than the
signature of a virus, it is not necessary to constantly update the
software for new virus strains.
* Low overhead. It is not memory-resident, and so does not require
CPU cycles and memory. Since it need scan only a limited number of
files for known results, it takes little processing time as compared
to programs that scan all files for matches on a signature table of
more than 200 possible viruses.
The files "Canary.exe" & "Canary.dat" are necessary for installation;
please see the detailed internal instructions (run the program and press
the [F1] key) for installation considerations.
PC Canary is easy to install and does not modify any files other than its
data file. This allows you to use this program in conjunction with other
security programs. It will automatically adjust for DOS changes, and so
will not report a problem in COMMAND.COM when you upgrade DOS.