Re: anti-malware progs ineffective
From: keith (krw_at_att.bizzzz)
Date: 01/29/05
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Date: Sat, 29 Jan 2005 13:43:28 -0500
On Sat, 29 Jan 2005 17:04:49 +0000, Ken Smith wrote:
> In article <pan.2005.01.29.04.19.21.358059@att.bizzzz>,
> keith <krw@att.bizzzz> wrote:
> [...me...]
>>> That is sort of what I suggested, but I don't think you can trust the
>>> downloaded version of a program for very long. The next time your
>>> computer gets hit, the virus may modify the downloaded files too.
>>
>>They normally infect the installed files, not the raw downloaded files.
>
> If the download file is a selfextracting file you run, it can be infected.
> Many viruses watch what you run and infect the files you exec. If you
> save the file and don't exec the saved on the virus may not see it to
> infect it.
>
>
>>
>>>>> Every time you create something you don't want to lose, write it onto a
>>>>> CD.
>>>>
>>>>...along with all the malware already installed.
>>>
>>> The "it" I mean is specifically what you created ei: the file you
>>> produced. If it gets infected before you save it to CD you lose it but
>>> assuming that you detect the virus, all the stuff before that point is
>>> safe.
>>
>>But that backup will re-infect all else after you reinstall.
>
> I still don't see your point or perhaps you don't see mine. I'll try an
> example:
Ok...
> (1)
> I make a documentment called Physics.html
>
> (2)
> I save Physics.html to the CD.
>
> (3)
> Months pass and lots of things happen
I edit Physics.html to add the proof of the existance of God.
> (4)
> My computer gets infected
I find more proof and in my research I've found the secret of cold
fusion.
> (5)
> I clean off my system and re-install from safe media
>
> (6)
> I copy Physics.htlm from the CD
> At this point my computer is not infected and I have Physics.html back.
...and lost the proof of God *and* the secrets of cold fusion. If you
saved the proof of God to CD *after* editing Physics.html, at least you
have that. If you saved after you added the secrets of cold fusion, that
copy is infected and your system is now reinfected.
>>> My wifes computer is less than 4 months from its last re-install and
>>> already stuff doesn't work. Re-installing is a majop pain because it
>>> uis an upgrade version so it wants to keep all the malware or refuses
>>> to install. When it is installed, it is complete virus bait and has
>>> to be patched, patched and patched again before the network is used.
>>
>>It sounds like you have some bit-rot going on there. Have you totally
>>eliminated the possibility of a hardware fault? I haven't had much
>>problem, well, at least until I tried installing PDF Reader 7.0, whcih
>>pretty much trashed all other versions, and itself. Since, downloads
>>have been iffy.
>
> It is hard to completely prove that there is not a hardware fault but I
> don't think there is one. The computer always seems to work fine until
> it is connected to the network. If I install Win98 on it, it works fine
> even when connected to the Network. Neither of these tests have been
> long enough to be sure.
>
> The failures seem to follow a pattern. The first one observed is
> usually that the machine will not shut down or that it runs very slow.
> When I check it after that there is usually an extra *.VXD file.
Could be infected. Slow usually means it is.
You say you installed Win98. On a clean partition? Is the MBR intact?
-- Keith > > --
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