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1991-04-30
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LVX v1.00 User Manual
May 1, 1991
FREEWARE
DISCLAIMER
LVX has been thoroughly tested and is the result of a constant
process of changes and updates. The program has proven to be
stable in everyday use. The author is not responsible for any
loss of data, damages to software or hardware that may result
directly or indirectly from the use of this program.
Preface
=======
This program is freeware, this means that you can copy it freely
as long as you don't ask any more money for it than a nominal fee
for copying. If you want to distribute this program you should
keep this document with it. This program cannot be used for
commercial purposes without written permission from the author.
If you have suggestions or remarks about this program, or if you
find any bugs, please let me know.
Write to the following address:
Peter Stuer
Kauwlei 21
B-2550 Kontich
Belgium - Europe
Requirements
============
LVX requires AmigaDOS Release 2 (KickStart 2.0 and Workbench
2.0) to run.
NOTE: Due to a bug in the dos.library of KickStart v36.xx you
may encounter problems when you use LVX to check a RAM: disk or
some non-standard devices. This bug has been fixed in KickStart
v37.xx. LVX will put up a requester reminding you of this of you
are using KickStart v36.xx.
Contents
========
1. Introduction
2. Usage
3. The Gadgets
4. Recognized viruses
1. Introduction
===============
LVX is an utility to check your files for linkviruses and
trojan horses. It can be started from the CLI or from the
Workbench. LVX will be constantly updated in the future to
recognize any new linkvirus or trojan horse (or any digital
vermin that comes along).
2. Usage
========
LVX can be run in three ways. You can run LVX from the CLI
like this:
1> LVX
From the Workbench, you either doubleclick the acompaning
icon or you select the Execute Command... item from Workbench
menu. In the resulting requester you enter:
LVX
3. The gadgets
==============
Devices
-------
This cycle gadget allows for easy selection of the device you
want to check. The current value of this gadget will be inserted
in the file requester when you start checking (see further).
Check files
-----------
When you click this gadget, a standard Asl file requester
will appear. Here you can select which devices/directory/file you
want to check. Selecting OK or double-clicking on a file in the
files list will start the checking. Selecting Cancel or the
Window Close gadget will cancel this operation.
LVX will display the file it is checking and a small
description. By default LVX only checks executables and enters
any directory it encounters. This can be changed (see further).
You can stop LVX by clicking anywhere in the window with either
mousebutton.
When LVX encounters a virus it will ask you:
Found < virus name >
in < filename >
Add a comment to this infected file ?
< virus name > is the name of the linkvirus or trojan horse
LVX thinks it found.
< filename > is the full pathname of the file the virus was
found in.
If you select Yes in the requester LVX will try to add a comment
to the file:
< virus name > (detected by LVX 1.00)
In addition LVX will set the protection bits of the file to
a---d, that is the archive and the delete bit will be set. If LVX
can not add the comment it will put up the following requester:
Unable to add a comment to
'< filename >'
In any case the protection bits will be changed !
About
-----
Click on this gadget to get some information about the
program.
Skip directories
----------------
This checkbox gadget determines whether or not LVX will skip a
child directory when it encounters one.
Check all files
---------------
When this gadget is checked LVX will check all files it
encounters. This may take a lot longer.
Enter directories interactively
-------------------------------
When this option is active LVX asks if it should enter a
directory everytime it encounters one. This is handy for scanning
hard-disks with lots of directories. A requester pops up giving
you the option to enter the directory (select the Yes gadget),
skip this directory (select the No gadget) or to enter all
directories from now on (select the All gadget).
Auto-remove read protection
---------------------------
AmigaDOS 2.0 recognizes and honours the protection bits of a
file. That means that if the read protection is on, programs are
not allowed to read that file. When LVX encounters such a file it
will ask you if you want to remove the read protection of the
file.
If you select Yes LVX retains all previous protection bits
with exception of the read protection bit. Read protection will
be turned off and the file will be re-checked.
If you select No LVX will report the file to be erroneous.
You also have the option to select All which temporarily
overrides the current gadget setting during this scan. From now
on all files will have their read protection removed.
If you wish to restore the read protection afterwards, use the
AmigaDOS command Protect like this
1> protect <filename> -r
which will give the file its read protection again.
Alternatively you can select the file from the Workbench by
clicking on its icon (or the filename if the setting is View By
Names) and selecting Information from the Icons menu. This will
open a window with at the right side 6 check gadgets that
represent the protection bits. To set the read protection click
on the gadget labelled Readable so that it is NOT checked. Then
select Save to make your changes permanent.
Auto comment viruses
--------------------
When LVX encounters a virus it will ask you if you wish to add
a comment to the file. Select this option when you want LVX to
comment all viruses it encounters without asking.
HINT: These last two options are especially handy when checking
hard-disks with a lot of files on them.
4. Recognized viruses
=====================
Bret Hawnes
BSG-9 (TTV1)
Butonic
Butonic 1.31 (JEFF)
CCCP
Centurions (The smily cancer)
Disaster Master
IRQ
The Traveling Jack 1 & 2
Saddam virus (trojan horse)
Revenge of the Lamer Exterminator (CList v33.18)
TTV1 2
Xeno
PROGRAM HISTORY:
****************************************************************
VERSION 0.99
o Pre-release on April 10, 1991 as FREEWARE.
****************************************************************
VERSION 0.99b
o Pre-release on April 21, 1991 as FREEWARE.
o Added an option to enter directories interactively.
o Keyboard shortcuts for the Check and About gadget are now
supported.
o The list of devices is built dynamically from DosList at the
start of the program.
****************************************************************
VERSION 1.00
o Released on May 1, 1991 as FREEWARE.
o Added a check for Butonic 1.31 (JEFF) linkvirus.
o Added a check for Bret Hawnes linkvirus.
o Fixed the check code for Butonic linkvirus.
o Bug fix: the filerequester lost the path settings from
previous calls.
o Added the auto-remove read protection gadget
o Added the auto-comment viruses gadget
LVX v1.00 written by Peter Stuer
_
_ //
Thanks to \X/ Amiga for being the best computer ever !