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VMK.doc
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1991-06-19
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Virus Memory Kill V1.0 ⌐ Chris Hames. 10th June 91.
(REMEMBER! no virus can copy itself to a write-protected disk.)
This utility is different to the previous versions in that it no
longer directly detects any virus. Instead it is now the most
powerful tool for detecting new viruses. It checks a heap of things
that viruses use and tells you when they have changed.
Firstly it checks CoolCapture, ColdCapture, WarmCapture,
KickTagPtr and the KeyboardReset to find anything that is trying to
survive reset. If any of these are abnormal it will alert you
including a display of the area of memory that they are pointing to.
You can look for words describing what the thing is and then decide
whether to do nothing or do a cold reset(note this is much more than
just a normal reset) which should clear memory of the virus.
Secondly it checks the jump tables of all resident libraries,
devices and resources and warns you if any are not pointing to ROM.
It will give you a message describing what isn't pointing to ROM and
where it is actually pointing. Most systems will get at least a few
of these warnings. Setpatch causes a few and other legit programs do
it as well.
FOR PEOPLE WHO DON'T UNDERSTAND A WORD I AM SAYING:-
This program is very technical I agree but a general user can
just have it in their startup-sequence and notice the messages it
gives. If they change and you haven't changed your system get the
latest best Virus Killer (One that checks your disks and files) and
run it to check out your system.
ALERTS THAT ARE CAUSED BY LEGIT PROGRAMS
Please note some legit programs will cause alerts.
SetPatch r (Workbench 1.3 command for 1/2 meg chip uses with RAD)
Changes the coldcapture.
RAD changes KickTagPtr
Stopping Alerts/Warnings that are caused by legit programs:-
You can stop a alert/warning by giving the full cause of the alert
which is best idea
eg -$01E(graphics.library)=$66666666
eg KickTagPtr=$77777777
You can stop a alert/warning by giving the full cause without the
location of the alert which is second best idea
eg -$01E(graphics.library)
You can stop a alert/warning by giving just the description of
the of the alert which is the worst idea
eg KickTagPtr
eg (keyboard.device)
Usage: VMK -ca alerts
-c will cold reset(this should kill any virus from memory)
-a will make library/devices/resources warnings into alerts
with memory display.
Examples of use:-
VMK -c ; Resets your machine safely!!
; (Should kill ANY virus from memory)
VMK KickTagPtr ; Stops alerts about the KickTagPtr (Say if you use
rad)
VMK KickTagPtr=$00000700 ; Stops the specific alert at this
location
; eg If RAD always at same location use it
VMK (dos.library) ; Stop all warnings/alerts about the dos library
VMK (dos.library) -$01E(graphics.library) ; no dos &
; no -$01E graphics alerts
If you find a new virus send it to:-
Erik Lovendahl
Snaphanevej 10
4720 Prst
Denmark
Bye,
Chris Hames (Available for any Amiga work)
Internet: bytey@phoenix.pub.uu.oz.au
ins760z@monu4.cc.monash.edu.au (1991 only)
FidoNet: 3:633/353