[comp.sys.mac] 7 Meg MacWrite? Virus?

REEVES-T@osu-20.ircc.ohio-state.edu (Dusty) (04/17/89)

This is a strange one. I observed an oddity on a Mac SE
in a public acess pc site here at OSU. The MacWrite program
on the hard disk was taking up 7 megs of space. I thought
it was probably a messed up directory listing, so I just threw it away
and restored MacWrite. No Problem. A couple of weeks
later I noticed that the MacWrite on my office SE was now 7,600,000 bytes.
I can't be sure if this is exactly the same size as the prior instance
 This time I investigated. Using res edit, i comared the MacWrite
file with a normal copy. I found that the STR resource (38 bytes) 
ID=801, found in normal copies of MacWrite 4.5, had been replaced by
FIVE STR ID=801, each wiht a listed size of
1,819,044. AS 5*1.8 is>7.6 there
is something esle going on too, but I didn't find it.

I found nothing more. I trashed that MacWrite. Alls well.

But - is this just a bizarre coincidence? Anyone seen this out there?

Both copis of the 7 meg Macwrite still functioned, by the way.



Terry Reeves
Reeves-t@osu-20.ircc.ohio-state.edu

alexis@ccnysci.UUCP (Alexis Rosen) (04/28/89)

I've seen this on one SE. I first noticed it almost a year ago. I has no
ill effects other than chewing up 7 MB of disk, so I left it (space isn't
critical on that machine).

This is NOT A VIRUS. If it were, I'm sure I would have detected other effects
by now. My best guess is that it's some very obscure bug in MacWrite 4.6
(and maybe 5.0).

---
Alexis Rosen
alexis@ccnysci.{uucp,bitnet}
alexis@rascal.ics.utexas.edu  (last resort)