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Free anti-virus software for OSX

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  • John Rethorst
    This is supposed to be the best available, or maybe the only available. As we know, there are no OSX viruses yet. I suspect the day may come. This program uses
    Message 1 of 17 , Aug 29, 2007
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      This is supposed to be the best available, or maybe the only available. As
      we know, there are no OSX viruses yet. I suspect the day may come. This
      program uses the open-source ClamAV, giving it a GUI front end. Easy
      to install and run, and optionally will check new files in any folder, like a
      folder action, and will also check all inbound email using Apple Mail.

      My father traded lots of files with PC users, and I keep a backup of his
      files.. When I first ran Clam, I found more than half a dozen PC trojans in
      files he had received. I never noticed them of course, but if I send these
      files to a PC user the trojans could do what they were designed to do.
      Impressive.

      In the Links section here, as "ClamXAV".

      John R.
    • Randy B. Singer
      ... There are no viruses for OS X yet. But there is malware that can infect a Mac running OS X. There are a ton of Word and Excel macro viruses that are
      Message 2 of 17 , Aug 30, 2007
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        On Aug 29, 2007, at 11:03 PM, John Rethorst wrote:

        > This is supposed to be the best available, or maybe the only
        > available. As
        > we know, there are no OSX viruses yet.

        There are no viruses for OS X yet. But there is malware that can
        infect a Mac running OS X. There are a ton of Word and Excel macro
        viruses that are cross platform. There are OS 8/9 viruses that can
        still infect Classic. And there are OS X Trojans which are not mere
        "proof of concepts', though these are very rare and not self-
        propogating.

        >
        > In the Links section here, as "ClamXAV".

        ClamXAV is free, which is, of course, very attractive. However, the
        product is misleading. ClamXav is an OS X port of ClamAV, which is a
        UNIX server anti-virus application for use with Windows networks.
        (For instance, ClamAV
        comes with Mac OS X Server.) The problem is that ClamXav uses ClamAV's
        anti-viral database, with few additions in consideration of the
        Macintosh.
        You can search the ClamAV database here:
        http://clamav-du.securesites.net/cgi-bin/clamgrok
        As a test, do a search for, for instance, for "Macintosh", or for one
        of the
        known (though very rare) Macintosh Trojans, for instance: "Opener" or
        "Renepo," and see if anything shows up. (Nothing will.)
        What this means is that ClamXav doesn't look for much in the way of
        Macintosh-specific malware. Sometimes free isn't a good deal.

        In addition, if a Macintosh-only virus were to appear in the wild,
        there is no indication that the ClamAV database would be updated to
        deal with it. (The developer of ClamXav has admitted that not only
        has he not contributed any Macintosh definitions to the database, but
        that he doesn't know how to write such definitions.) Note that all
        of the commercial anti-virus program developers aggressively seek out
        new malware threats and share collected examples of these threats,
        allowing them to quickly push out an update to their software that
        will protect users. There is no one from the ClamAV project that is
        doing this for the Macintosh. So, the ClamAV folks might never get
        an example of a new Macintosh Malware threat, and even if they did,
        there is no indication that there is anyone who would update ClamAV
        to recognize that threat.

        In other words, ClamXav is practically worthless for use with the
        Macintosh, and worse, I fear that it lulls Mac users into a false
        sense that it is protecting them, when in fact it doesn't protect
        them from much at all. (It does provide protection from cross-
        platform Word and Excel macro viruses.)

        Since ClamXav does not scan for Macintosh-only viruses, if you use
        Classic, ClamXav does not protect you from any OS 9 viruses, which
        can also infect Classic. It also does not scan for the three known
        OS X Trojans in the wild, or the "Concept" Trojans (which is not a
        real, or malicious, Trojan, but it does sort of provide a model for
        someone who wants to create one, so it would be nice if your anti-
        viral software identified derivatives of it.)

        Also, ClamXav does not disinfect infected files and software. It can
        only flag such software for you. You then have to delete such
        software to be rid of the virus.

        ClamXav also does not scan files interactively.

        ClamXav *is* good at scanning for, and detecting Windows viruses on
        your Macintosh, but that is of questionable value, as these are
        harmless on the Mac, and they are easy to detect and just trash.
        (Usually they manifest themselves as gibberish e-mail attachments.) A
        Macintosh is highly unlikely to spread Windows viruses to Windows
        users, so software to detect Windows viruses resident on a Mac is of
        questionable value.

        I simply don't see ClamXav as being a substitute for a commercial
        anti-virus program. Admittedly, you probably don't need any sort of
        anti-virus program to begin with, but if you feel that you do, you
        probably want one that is actually going to protect you from
        conceivable threats.


        ___________________________________________
        Randy B. Singer
        Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

        Macintosh OS X Routine Maintenance
        http://www.macattorney.com/ts.html
        ___________________________________________
      • Phillip Jones, C.E.T.
        On OS9 Norton AntiVirus was Great! did what it said and caused no problems. However; Although I do have Nav for OSX I haven t used it since OSX.2 because its a
        Message 3 of 17 , Aug 31, 2007
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          On OS9 Norton AntiVirus was Great! did what it said and caused no problems.

          However; Although I do have Nav for OSX I haven't used it since OSX.2
          because its a flat out PIA. It slows the system down, and actually more
          of a hindrance for email or WWW.

          Is there anything for Mac OSX.3 /.4/ .5 that works that don't interfere
          and cause more problems than is supposed to cure.
        • Randy B. Singer
          ... Yes, Symantec breaks the rules and adds kernel extensions to OS X to have things work. This causes instability and conflicts. ... Intego s Virus Barrier
          Message 4 of 17 , Aug 31, 2007
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            On Aug 31, 2007, at 12:45 PM, Phillip Jones, C.E.T. wrote:

            > On OS9 Norton AntiVirus was Great! did what it said and caused no
            > problems.
            >
            > However; Although I do have Nav for OSX I haven't used it since OSX.2
            > because its a flat out PIA. It slows the system down, and actually
            > more
            > of a hindrance for email or WWW.

            Yes, Symantec breaks the rules and adds kernel extensions to OS X to
            have things work. This causes instability and conflicts.

            >
            > Is there anything for Mac OSX.3 /.4/ .5 that works that don't
            > interfere
            > and cause more problems than is supposed to cure.

            Intego's Virus Barrier ($80)
            http://www.intego.com/virusbarrier/

            is stable, it doesn't slow your Mac down, it doesn't interrupt your
            work to do scans, and you don't even know that it is running until it
            finds malware on your Mac.

            ___________________________________________
            Randy B. Singer
            Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

            Macintosh OS X Routine Maintenance
            http://www.macattorney.com/ts.html
            ___________________________________________
          • Syth
            ... Like what? it did nothing that Disinfectant didn t do much better and with 1% of the resource hit. ... Bwahahahahaha. The money I made recovering
            Message 5 of 17 , Aug 31, 2007
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              On 31-Aug-2007, at 13:45, Phillip Jones, C.E.T. wrote:

              > On OS9 Norton AntiVirus was Great! did what it said

              Like what? it did nothing that Disinfectant didn't do much better
              and with 1% of the resource hit.

              > and caused no problems.

              Bwahahahahaha. The money I made recovering people's machines from
              Norton FUBARs more than paid for my Dual G4.

              > Is there anything for Mac OSX.3 /.4/ .5 that works that don't
              > interfere
              > and cause more problems than is supposed to cure.

              There are no OS X viruses, so any anti-virus software is a waste of
              time, energy, money, and resources.

              --
              There is NO Rule six!
            • John Rethorst
              Good thoughts all, from one of the leading experts on this list. ... Which Clam picks up. At this point that s all there is to do for a Mac, but well worth
              Message 6 of 17 , Aug 31, 2007
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                Good thoughts all, from one of the leading experts on this list.
                Some observations:

                --- In wordperfectmac@yahoogroups.com, "Randy B. Singer" <randy@...> wrote:
                >
                >
                > On Aug 29, 2007, at 11:03 PM, John Rethorst wrote:
                >
                > > This is supposed to be the best available, or maybe the only
                > > available. As we know, there are no OSX viruses yet.
                >
                > There are no viruses for OS X yet. But there is malware that can
                > infect a Mac running OS X. There are a ton of Word and Excel macro
                > viruses that are cross platform.

                Which Clam picks up. At this point that's all there is to do for a
                Mac, but well worth doing if you trade files with PC users.

                > The problem is that ClamXav uses ClamAV's
                > anti-viral database, with few additions in consideration of the
                > Macintosh.

                But at this point there are no additions to be made, since there
                are no OSX viruses.

                > In addition, if a Macintosh-only virus were to appear in the wild,
                > there is no indication that the ClamAV database would be updated to
                > deal with it.

                Also no indication that as open source GPL software, the database
                would not be updated.

                > (The developer of ClamXav has admitted that not only
                > has he not contributed any Macintosh definitions to the database,

                No such definitions to be contributed at this point.

                > but that he doesn't know how to write such definitions.)

                As open source, and with increasing interest in (especially) the
                Mac community in contributing free solutions, I'd be surprised if
                someone didn't write a definition once a virus is propagated.

                > Also, ClamXav does not disinfect infected files and software. It can
                > only flag such software for you. You then have to delete such
                > software to be rid of the virus.
                >
                > ClamXav also does not scan files interactively.

                It will "quarantine" infected files: move them to another folder. Clam
                will watch folders and scan anything dropped in them. I have it watch
                my desktop, since everything I download goes there. There is also
                an Applescript that will scan incoming email.

                > ClamXav *is* good at scanning for, and detecting Windows viruses on
                > your Macintosh, but that is of questionable value, as these are
                > harmless on the Mac, and they are easy to detect and just trash.
                > (Usually they manifest themselves as gibberish e-mail attachments.) A
                > Macintosh is highly unlikely to spread Windows viruses to Windows
                > users, so software to detect Windows viruses resident on a Mac is of
                > questionable value.

                They're harmless on the Mac unless you pass them along to another
                Windows user. A Mac can spread Microsoft macro viruses to PCs as
                fast as a PC can.

                John R.
              • John Rethorst
                Although John Norstad s redoubtable Disinfectant does not run in OSX Classic, it runs under SheepShaver just fine. I wish I d included it in the SS install.
                Message 7 of 17 , Aug 31, 2007
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                  Although John Norstad's redoubtable Disinfectant does not run in
                  OSX Classic, it runs under SheepShaver just fine. I wish I'd included
                  it in the SS install.

                  IIRC although it doesn't check for Word and Excel macro viruses, it
                  does catch every virus written for OS 9 and earlier with the
                  exception of the AutoStart worm (which can be deactivated by
                  unchecking QuickTime's autoplay audio CDs option, in the OS 9
                  versions).

                  Most older viruses are probably out of circulation, but it wouldn't
                  hurt for SheepShaver users who receive files from anywhere to
                  download Disinfectant 3.7.1 from the Files section here and run it,
                  including installing the Disinfectant init.

                  John R.
                • Syth
                  ... Granted, it only had 20 something viruses to track, but it still the absolutely best anti-virus utility ever. it. just. worked. I think the final version
                  Message 8 of 17 , Aug 31, 2007
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                    On 31-Aug-2007, at 21:48, John Rethorst wrote:
                    > Most older viruses are probably out of circulation, but it wouldn't
                    > hurt for SheepShaver users who receive files from anywhere to
                    > download Disinfectant 3.7.1 from the Files section here and run it,
                    > including installing the Disinfectant init.

                    Granted, it only had 20 something viruses to track, but it still the
                    absolutely best anti-virus utility ever. it. just. worked.

                    I think the final version (3.7.1) might even have been updated for
                    the auto-start worm, but don't quote me on that.

                    --
                    "I don't care how much melanin you have in your skin nor who you
                    sleep with, you can't have my cheese."
                  • John Rethorst
                    I ran Clam on my Documents folder, and got two hits in the backups I have of my dad s Eudora mailboxes. Both the In and Out boxes had WScr.Unsafe.D in them.
                    Message 9 of 17 , Aug 31, 2007
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                      I ran Clam on my Documents folder, and got two hits in the backups
                      I have of my dad's Eudora mailboxes. Both the In and Out boxes had
                      "WScr.Unsafe.D" in them.

                      Following advice on the Clam forum, I pasted "WScr" into:

                      http://clamav-du.securesites.net/cgi-bin/clamgrok?display=virus&display=signature

                      to get the virus data. In hex, that is:

                      656e74697469657327293b7362663d666c2e537562466f6c646572733b666f722876617
                      2206d79653d6e657720456e756d657261746f7228736266293b216d79652e6174456e64
                      28293b6d79652e6d6f76654e6578742829296964643d6d79652e6974656d28293b6964
                      733d6e65

                      I pasted that into the Hex > ASCII Converter at

                      http://www.dolcevie.com/js/converter.html

                      to get:

                      entities');sbf=fl.SubFolders;for(var mye=new Enumerator(sbf);!mye.atEnd();mye.moveNext
                      ())idd=mye.item();ids=ne

                      I then opened the two text files in TextEdit, searched for and deleted
                      this string.

                      Clam found a couple of similar items, HTML code with "autoexec.bat" in
                      them. My DOS days are long gone, but I wonder if that HTML would not
                      automatically execute if the mail (not an attachment) was opened. I
                      haven't followed the Windows virus scene so I don't know, but I wouldn't
                      be surprised if those emails could do damage if I forwarded them to a
                      PC user.

                      John R.
                    • John Rethorst
                      ... OK, but does anyone know? A Google search on Disinfectant did not turn up much. Version Tracker says it runs in Classic . . . but I get a dialog box saying
                      Message 10 of 17 , Aug 31, 2007
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                        --- In wordperfectmac@yahoogroups.com, Syth <syth@...> wrote:

                        > I think the final version (3.7.1) might even have been updated for
                        > the auto-start worm, but don't quote me on that.

                        OK, but does anyone know? A Google search on Disinfectant did
                        not turn up much. Version Tracker says it runs in Classic . . . but
                        I get a dialog box saying it does not. Old software has a way of
                        disappearing into the ether. Except WP of course.

                        I'd like to know about Disinfectant and AutoStart for the docs for
                        an update to the SheepShaver install.

                        John R.
                      • Randy B. Singer
                        ... There are no viruses for OS X, it s true. But beyond that, the malware picture for the Macintosh, though rosy, isn t as simple as the Mac is immune or
                        Message 11 of 17 , Aug 31, 2007
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                          On Aug 31, 2007, at 5:57 PM, John Rethorst wrote:

                          > > The problem is that ClamXav uses ClamAV's
                          > > anti-viral database, with few additions in consideration of the
                          > > Macintosh.
                          >
                          > But at this point there are no additions to be made, since there
                          > are no OSX viruses.

                          There are no viruses for OS X, it's true.

                          But beyond that, the malware picture for the Macintosh, though rosy,
                          isn't as simple as "the Mac is immune" or "none exists." There *is*
                          malware that can infect your Mac. It's just very, very rare.

                          There are several Trojans/worms for OS X (not just "concepts"), but
                          they are incredibly rare, and they aren't self-propogating, so you are
                          unlikely to encounter them, and only then if you engage in downloading
                          from peer to peer networks. Trojans for OS X include Opener/Renepo, the
                          WordInstaller Trojan, MacCowHand, and MP3/Concept. MP3/Concept does not
                          exist in the wild as anything other than a proof-of-concept.
                          http://www.sophos.com/virusinfo/analyses/maccowhanda.html
                          http://www.sophos.com/virusinfo/analyses/shrenepoa.html
                          http://vil.nai.com/vil/content/v_129163.htm
                          http://www.macintouch.com/opener.html
                          http://securityresponse.symantec.com/avcenter/venc/data/
                          macos.mw2004.trojan.html
                          http://www.macworld.co.uk/news/index.cfm?NewsID=8651
                          http://www.intego.com/news/pr41.asp
                          http://www.securityfocus.com/archive/1/395107/2005-04-03/2005-04-09/0

                          As for MP3/Concept, when someone posts a proof-of-concept on the
                          Internet, my personal feeling is that it is sort of like providing a
                          construction kit for psychopathic geeks to create malware. Thus, the
                          mere
                          existence of such a proof-of-concept on the Internet heralds the need
                          for
                          increased vigilance.
                          (Many of the more common OS 8/9 viruses were simply minor updates of
                          the same two or three viruses.)

                          There are a ton of Word and Excel macro
                          viruses that are cross platform. Literally hundreds of them. Of
                          course, these are no threat whatsoever to you if you don't have
                          Microsoft Office. If you turn on "Macro Virus Protection" in Word
                          and Excel, macros can't run automatically, giving you great
                          protection, as long as you don't make a wrong choice and allow a
                          malicious macro to run.

                          There are classic viruses (for OS 8/9) that can infect Classic running
                          under OS X, but they have become very rare because they were designed to
                          propagate via floppy, and Macs haven't used floppies in ages. (Folks
                          don't seem to share user-recorded CD's like they did floppies.)

                          So, your chances of encountering any malware at all, if you are running
                          OS X, is miniscule. But Mac malware does exist. Most Mac users feel
                          that using anti-viral software
                          is a waste of money, and I don't disagree. However, some folks
                          simply must have anti-virus software, for various reasons. One is
                          that they are running a business and their date is very valuable/
                          important and they are required to do everything necessary to protect
                          it. In fact, if anything happened to some business users' data, and
                          it was discovered that they did not have anti-virus software
                          installed, they could be considered to be negligent just by that fact
                          alone. The other instance is if you are on a business network. Many
                          companies require you to have anti-virus software. It doesn't matter
                          that you have a Mac, they don't want to hear it, you must have AV
                          software.

                          Also, some folks want to be among the very earliest to receive
                          protection if a new, very malicious and virulent threat arises. Good
                          commercial AV companies, like Intego, as I said previously, band
                          together with others to find new threats, test them, and share them,
                          as early as possible. The ClamAV project isn't part of this effort.
                          When a new threat is discovered, users of a good commercial AV
                          product might receive updated definitions automatically via the
                          Internet as much as a week before folks on discussion lists and Mac
                          news sites even hear about the new threat!

                          I have used anti-virus software religiously for at
                          least the last couple of decades, and its been a long while since it
                          flagged anything other than a Windows virus that has shown up as an
                          e-mail attachment. (Windows viruses are completely harmless to
                          Macs.) But I have client files on my computer. I can't be without
                          AV software. Being without it would be per se negligent.


                          > > ClamXav *is* good at scanning for, and detecting Windows viruses on
                          > > your Macintosh, but that is of questionable value, as these are
                          > > harmless on the Mac, and they are easy to detect and just trash.
                          > > (Usually they manifest themselves as gibberish e-mail
                          > attachments.) A
                          > > Macintosh is highly unlikely to spread Windows viruses to Windows
                          > > users, so software to detect Windows viruses resident on a Mac is of
                          > > questionable value.
                          >
                          > They're harmless on the Mac unless you pass them along to another
                          > Windows user. A Mac can spread Microsoft macro viruses to PCs as
                          > fast as a PC can.

                          No, it can't; at least not if a normal user is involved. Many PC
                          viruses, and almost all of the ones that show up on a Mac, are self-
                          propagating. Since PC viruses don't run on a Mac, they can't mail
                          themselves out. That has to be done manually by the user for the
                          virus to spread.

                          A PC virus on a Mac is easy to spot. They are almost always a
                          gibberish file attachment to an e-mail. You would either have to
                          purposely want to send a viral attachment to someone else, or be
                          foolish enough to forward a file that you haven't looked at and don't
                          recognize to someone else, to spread a PC virus. I guess that both
                          of these happen, but I doubt that they happen with any kind of
                          significant frequency.

                          The claim that "Macs spread PC viruses" is mostly just propaganda
                          spread by Windows apologists hoping to keep Macs off their networks.

                          ___________________________________________
                          Randy B. Singer
                          Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

                          Macintosh OS X Routine Maintenance
                          http://www.macattorney.com/ts.html
                          ___________________________________________
                        • John Rethorst
                          ... That s true. John R.
                          Message 12 of 17 , Sep 1, 2007
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                            --- In wordperfectmac@yahoogroups.com, "Randy B. Singer" <randy@...> wrote:

                            > > They're harmless on the Mac unless you pass them along to another
                            > > Windows user. A Mac can spread Microsoft macro viruses to PCs as
                            > > fast as a PC can.
                            >
                            > No, it can't; at least not if a normal user is involved. Many PC
                            > viruses, and almost all of the ones that show up on a Mac, are self-
                            > propagating. Since PC viruses don't run on a Mac, they can't mail
                            > themselves out. That has to be done manually by the user for the
                            > virus to spread.

                            That's true.

                            John R.
                          • Phillip Jones, C.E.T.
                            I am trying the trial version of virusBarrierX after I installed I tried out the manual test and even though I know it just scans and doesn t repair; I noticed
                            Message 13 of 17 , Sep 1, 2007
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                              I am trying the trial version of virusBarrierX

                              after I installed I tried out the manual test and even though I know it
                              just scans and doesn't repair; I noticed what it did was cycle back and
                              forth. It counted from 100% down to 0 Percent% it had gone through this
                              twice before I notice it cycling back and forth. Is this normal. Looks
                              Like it would count files to determine how many there are to look at
                              then count to 100% to test. then when you get to 100% check it would
                              shut down. Should I have just let it cycle back and forth?
                            • Randy B. Singer
                              ... I really don t know what you are referring to. But then again, once you have installed VB, you never have to do a manual scan again. So if you can live
                              Message 14 of 17 , Sep 1, 2007
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                                On Sep 1, 2007, at 11:19 AM, Phillip Jones, C.E.T. wrote:

                                > after I installed I tried out the manual test and even though I
                                > know it
                                > just scans and doesn't repair; I noticed what it did was cycle back
                                > and
                                > forth. It counted from 100% down to 0 Percent% it had gone through
                                > this
                                > twice before I notice it cycling back and forth. Is this normal. Looks
                                > Like it would count files to determine how many there are to look at
                                > then count to 100% to test. then when you get to 100% check it would
                                > shut down. Should I have just let it cycle back and forth?

                                I really don't know what you are referring to.

                                But then again, once you have installed VB, you never have to do a
                                manual scan again. So if you can live with what it is doing, and it
                                can get through a scan, you're good.

                                There is a test (harmless) virus that you can download to see if the
                                program works:

                                EICAR virus
                                http://www.eicar.org/anti_virus_test_file.htm


                                ___________________________________________
                                Randy B. Singer
                                Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

                                Macintosh OS X Routine Maintenance
                                http://www.macattorney.com/ts.html
                                ___________________________________________
                              • Phillip Jones, C.E.T.
                                Nope I think I ll leave the harmless test virus alone. For some reason it found some type of OS 9 Virus on my OS9 drive even though there is no way to set for
                                Message 15 of 17 , Sep 2, 2007
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                                  Nope I think I'll leave the harmless test virus alone. For some reason
                                  it found some type of OS 9 Virus on my OS9 drive even though there is no
                                  way to set for a particular drive. It found 2 OS9 Viruses but took an
                                  hour and three quarters to check both drives.

                                  Randy B. Singer wrote:
                                  >
                                  >
                                  >
                                  > On Sep 1, 2007, at 11:19 AM, Phillip Jones, C.E.T. wrote:
                                  >
                                  > > after I installed I tried out the manual test and even though I
                                  > > know it
                                  > > just scans and doesn't repair; I noticed what it did was cycle back
                                  > > and
                                  > > forth. It counted from 100% down to 0 Percent% it had gone through
                                  > > this
                                  > > twice before I notice it cycling back and forth. Is this normal. Looks
                                  > > Like it would count files to determine how many there are to look at
                                  > > then count to 100% to test. then when you get to 100% check it would
                                  > > shut down. Should I have just let it cycle back and forth?
                                  >
                                  > I really don't know what you are referring to.
                                  >
                                  > But then again, once you have installed VB, you never have to do a
                                  > manual scan again. So if you can live with what it is doing, and it
                                  > can get through a scan, you're good.
                                  >
                                  > There is a test (harmless) virus that you can download to see if the
                                  > program works:
                                  >
                                  > EICAR virus
                                  > http://www.eicar.org/anti_virus_test_file.htm
                                  > <http://www.eicar.org/anti_virus_test_file.htm>
                                  >
                                  > ___________________________________________
                                  > Randy B. Singer
                                  > Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
                                  >
                                  > Macintosh OS X Routine Maintenance
                                  > http://www.macattorney.com/ts.html <http://www.macattorney.com/ts.html>
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                                • John Rethorst
                                  ... ClamXAV does not let you scan the entire startup disk, since Apple includes a symbolic link to that disk on that disk. When the scan reaches the link it
                                  Message 16 of 17 , Sep 2, 2007
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                                    --- In wordperfectmac@yahoogroups.com, "Phillip Jones, C.E.T." <pjones1@...> wrote:
                                    >
                                    > I am trying the trial version of virusBarrierX
                                    >
                                    > after I installed I tried out the manual test and even though I know it
                                    > just scans and doesn't repair; I noticed what it did was cycle back and
                                    > forth. It counted from 100% down to 0 Percent% it had gone through this
                                    > twice before I notice it cycling back and forth. Is this normal. Looks
                                    > Like it would count files to determine how many there are to look at
                                    > then count to 100% to test. then when you get to 100% check it would
                                    > shut down. Should I have just let it cycle back and forth?

                                    ClamXAV does not let you scan the entire startup disk, since Apple
                                    includes a symbolic link to that disk on that disk. When the scan
                                    reaches the link it begins to scan the disk again, recursively. With
                                    Clam, you can effectively scan the entire startup disk by selecting
                                    every visible item on the disk, in the Select dialog. VirusBarrierX
                                    might have the same issue.

                                    John R.
                                  • Randy B. Singer
                                    ... Well, that s what you use an anti-virus program for. ... As I said, once you install VirusBarrier, you only ever have to do a scan of your complete drive
                                    Message 17 of 17 , Sep 2, 2007
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                                      On Sep 2, 2007, at 7:40 AM, Phillip Jones, C.E.T. wrote:

                                      > Nope I think I'll leave the harmless test virus alone. For some reason
                                      > it found some type of OS 9 Virus on my OS9 drive even though there
                                      > is no
                                      > way to set for a particular drive.

                                      Well, that's what you use an anti-virus program for.

                                      > It found 2 OS9 Viruses but took an
                                      > hour and three quarters to check both drives.

                                      As I said, once you install VirusBarrier, you only ever have to do a
                                      scan of your complete drive once. From then on it works
                                      automatically to check any new or changed software.

                                      ___________________________________________
                                      Randy B. Singer
                                      Co-author of The Macintosh Bible (4th, 5th, and 6th editions)

                                      Macintosh OS X Routine Maintenance
                                      http://www.macattorney.com/ts.html
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