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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

2605.0. "New Virus Killer Package on Market" by NZOV01::MCKENZIE (Diehard the hunter) Sun May 28 1989 20:41

    Over the weekend I purchased the latest virus killing program.....
    
    This little baby is great. Not only does it spot aprox 15 different
    virus types (including Byte Bandit/Byte Warrior/SCA etc etc etc)
    but it also allows you to build up a database of all the boot blocks
    of all your disks. 
    
    
    The beast can be auto loaded or loaded from workbench. When the
    appropriate icon is selected, it throws up a WIMP based menu. 
    
    The user then removes WB from DF0: and starts loading disks. When
    this kit comes across a non-standard boot block it advises the user
    of the situation and asks if the user wants to investigate it or
    forget it. If the user requests investigation, Virus killer displays
    the ASCII equivilant of of the boot block on the screen. This can
    Then. be searched by the user. When the user selects the search
    option, the virus killer searches the blocks looking for text string
    messaages that match what it has in its database. When it finds
    a match it displays the match. Based on the match the user can
    determine whether the boot block is a virus or a copy protection
    scheme etc. The boot block can be saved into the Virus killer database
    complete with 40 characters of test describing the disk the boot
    block came from. 
    
    The ASCII dump can also be printed for those that prefer hardcopy...
    and of course you can TERMINATE the virus (I love this)
    
    When you request to terminate a virus the message
    
    "Do you really want to kill the poor little thing?"
    
    is displayed on the screen (in a system-style requestor window)
    and you reply yes or no. When the user says YES the virus killer
    terminates the virus (provided the disk is not copy protected)
    and returns to its main menu. A display keeps track of the following:
    
    	o Number of disks checked ------------------------ xxxx
        o Number of disks with non-standard boot block --- xxxx

        Last status message...
    

    Users can install the newly virus-cleaned disk from a pull-down
    menu available.
    
    Documentation is reasonable though nothing marvelous. its on a 
    folded photo-copied sheet that comes in the plastic case. Easy
    enough to understand - just at times not so easy to READ!
    
    Priced at $40.00 (NZ) 
           => $25.00 (US) I think its a good buy. The version I
    have is produced in england for the PAL market and I'm not
    sure if a US version exists. 
    
    Cheers
    
    Phil
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2605.1AmmendmentNZOV01::MCKENZIEDiehard the hunterSun May 28 1989 20:4512
    whoops - I said in .0 
    
    the virus was killed provided the disk was not copy protected...
    
    This of course should have been....]
    
    the virus was killed provided the disk was not WRITE protected...    
        
    Sorry
    
    Phil
    
2605.2My suggestion: Don't buy a virus protectorEUCLID::OWENCthulhu called...Tue May 30 1989 11:108
    I don't think I could ever BUY a virus protector simply because
    there are new virus' comming out constantly.  As long as VirusX
    can keep up, I don't see much need to buy one. (other than the data
    base you mentioned)
    
    Anyone else feel the same way?
    
    Steve O
2605.3?EMC2::PELLATTThe Karmic SurferTue May 30 1989 11:537
    But won't VIRUS KILLER detect ALL viruses ( virii ?? ) when it checks
    the boot block or are there other ways of infecting yourself ?
         
    Otherwise I'd agree that regular updates of VirusX is likely all you
    need ( pity I haven't got a copy yet (8^(  ). 
    
    Dave 
2605.4double '?'EUCLID::OWENCthulhu called...Tue May 30 1989 16:307
    Virus writers are getting more creative.  For every virus-killer
    that comes out, there is a virus written that is made to fool the
    viurs-killer.
    
    I'm really not completely sure which way is the best though...
    
    Steve O
2605.5Help good programmersMQOFS::DESROSIERSLets procrastinate....tomorrowTue May 30 1989 18:5010
    Altough VIRUSX is puplic domain, and free, it must take an awfull
    amount of time for Steve Tibbet (the author) to write it and UPDATE
    it regularely.  Why not send him a few bucks, his address is in
    the doc files.  He deserves the money a lot more than some insipid
    software that MUST be bought sight unseen, at least you know this
    one is usefull.
    
    Jean
    
    PS My check is in the mail.
2605.6Yup!EUCLID::OWENCthulhu called...Tue May 30 1989 19:026
    re -.1
    
    you're right.  We should send him some money.  If he had 5 cents
    for every disk he's saved from virus' he'd be a rich man!
    
    Steve O
2605.7Hmmmm...NZOV01::MCKENZIEDiehard the hunterTue May 30 1989 20:5738
    I dont intend having to justify my purchase - I feel I got a reasonable
    deal.......but I'd like to balance this up a little
    
    There are a couple of things about viruses (at least at my level of
    understanding) that will remain the same:
    
    		o Sickos/Social rejects will always write viruses
                o Viruses need to be implanted on an area on disk
                  that is forcefully checked by the system at every
                  boot - aka: boot block
    
    I have used about 10 different virus killers - mostly public domain
    (although VirusX was not among them) and none of them did more than
    attempt to remedy the existing problem with a single strain of a
    certain type of virus. Some Public domain Virus
    killers even spread their own viruses after being stuffed around
    with by the nasty little virus-writing scumbags before distribution. 
    Hence I have not a lot of faith in my present sources (however
    limited) of public domain software PERIOD. Most virus killers also are 
    generally only effective against one type of virus. By building a
    dbase as every new nasty comes along, so will the updates to kill it. 
    Plus who knows. In the process of building a dbase some genius
    somewhere may discover a new strain floating around a little sooner
    than normal ... might save some novice like me a little frustration.
    
    I have heard plenty of good things about VirusX but have never seen
    a copy of it down this neck of the woods. Since no one
    in this country deals public domain except the various user groups. 
    And since much of their software is rather dubious .... Hmmmmmm
    
    Perhaps the title of this note was a little mis-leading 
    It will be changed.....
    
    Phil
    
   
    
    
2605.8Boot-block checkers may not be enoughTEACH::ARTThink the UNTHINKABLEWed May 31 1989 01:4713
	re .-1

	Sad to say, viruses do NOT need to live in the boot-block
	on the Amiga.  Another wonderful way to infect a system would
	be to hide the virus in an extra hunk of an executable program.
	When the program was run on a new machine, it would look in
	some likely directory (like C:), and add copies of the same
	extra hunk to a few executables there; every time  one of the
	infected programs were run, the virus could have its way you.
	Other than constantly checking the size of all your executables, 
	there's no  easy way to detect or correct this kind of virus...

	-Art
2605.9More to it than appears on the surfaceRLAV::LITTLETodd Little, NYA SWS, 323-4475Wed May 31 1989 03:108
    Boot block checking is definitely not enough.  Nor is checking the
    length of an executable.  It certainly would be possible to stuff a
    virus in some well known executable like DIR by replacing code that
    implements seldom used features with the virus code.  A better
    executable would be one that is invoked by most if not all
    startup-sequence scripts.
    
    -tl
2605.10Abandon All Hope Ye Who Enter HereTEACH::ARTThink the UNTHINKABLEThu Jun 01 1989 20:1213
	Yeah, unfortunately the real problem has to do with the
	fundamental design of AmigaDOG itself:  It has no notion
	of privilege or ownership associated with any of the
	objects in the OS.  Any piece of code can touch any file,
	anyone can access the trackdisk device.

	Of course, trying to enforce protection on a machine that
	doesn't have hardware memory protection is kind of silly...

	Sigh.

	-Art