[comp.sys.mac] new virus

jap2_ss@uhura.cc.rochester.edu (Joseph Poutre) (10/01/89)

We appear to have found a new virus, or at least a new strain of a 
virus here at the University.  It attacks Macwirte and the System.  What
it does is alter ICN128 of Macwrite to have the word Macwite or perhaps
Macwight instead of the lines.  While in the system it causes problems
with the Chooser, preventing it from finding any printing resources or
Appletalk networks.  It appears to have a counter within the system, which
increases every few times the System is accesses, evne by something as
innocuous as Get Info.  Eventually the disk crashes, after causing boot
problems, problems with copying applications and documents between disks,
and eventually requiring possible reinitializing of the disk.  I am
not certain these are all symptoms, or if they are all the symptoms.
The only clues I have been able to find are an added STR 108 in Macwrite,
and the inability of Resedit to find about 2/3 rds of the System's 
resources.  We continue our work, and hope that something is know about
this.  If it is a new virus, be warned.
No anti-virus program we have can identify it, including the latest versions
of Vaccine, Anti-pan, Virex, Virus Rx, Interferon, and even Disinfectant
1.2.  It appears unable to write to a physically locked disk.  Whether
software locking works is unknown at this time.  I have also posted 
to comp.virus, but my message has not appeared yet.  Please send
me any programs you feel might help me root out this virus.  We have
Resedit, Fedit, all the above anti-virus software.  I would like a
file comparison program, is one is available free or as shareware.
Thank you for your time and effort.  I will post further information
as I get it.
The Mad Mathematician
jap2_ss@uhura.cc.rochester.edu
Understand the power of a single action.  (R.E.M.)