[comp.virus] Surviving warm boot

frisk@rhi.hi.is (Fridrik Skulason) (12/03/90)

>>On Tue, 20 Nov 90 14:11:00 +0100, Peter van der Landen <LANDEN atHROEUR5> sai
d:
>> I have experimented quite a bit with Jerusalem-B but I have never seen
>> it survive a warm boot.

>Neither did I. Possibly the originial contribution has confused it with
>some other virus that indeed can survive a warm boot.

Jerusalem does not survive warm boot, and makes no attempt to do so, but there
are several viruses known which attempt it, and also the following two cases:

The Pentagon "virus" from the Philippenes contains code clearly intended to
survive Ctrl-Alt-Del, and if it worked at all (instead of being totally unable
to infect anything) we would have a virus which could survive warm boot.

Fu Manchu intercepts Ctrl-Alt-Del, but will not survive the boot process.

- --
Fridrik Skulason      University of Iceland  |
Technical Editor of the Virus Bulletin (UK)  |  Reserved for future expansion
E-Mail: frisk@rhi.hi.is    Fax: 354-1-28801  |

SESPC374@YSUB.YSU.EDU (12/06/90)

On November 16, A colleague and I found a strain of the Jerusalem B
virus (at least that's what virusscan said it was) which upon being
cleaned locks the machine and trashes the disk.  It also seems to
survive a warm boot.  Can anyone explain why or send me any
information on how to deal with this mutation?  I would appreciate the
help.  I am currently doing research on viruses for a class of mine.
Thanks.
                                                  Michael J. Walp
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Michael J. Walp
Student Programming Consultant
Youngstown State University

mjw/MJW

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