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From: eli@smectos.gang.umass.edu (Eli Brandt)
Newsgroups: comp.virus
Subject: Re: 640 K ? (PC)
Message-ID: <0007.9007231332.AA22186@ubu.cert.sei.cmu.edu>
Date: 19 Jul 90 17:19:55 GMT
Sender: Virus Discussion List <VIRUS-L@LEHIIBM1>
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Approved: krvw@sei.cmu.edu

WELFARE@ILNCRD.BITNET (A. SOLOMON EAGLSTEIN) writes:
>I just ran Immune version 9.0 and was informed that there was only
>639K insatead of 640K (PS/2 - 60). I then ran Scanres 1.4V61 and it
>checked out ok at 640K ! Is anyone familiar with the probl Do I
>have some mean and nasty bug ?

Maybe; it's certainly a technique that a virus could use.  However,
there's another possibility: on certain PS/2's, such as my 50, there
is a hardware error which causes the system clock to do bizarre
things.  The fix is a device driver with some peculiar name which, as
on your system, makes it look as if you have only 639K of DOS memory.
Check your config.sys for this device driver; I think it's called
dasddrvr.sys or something.