[comp.virus] Possible hypercard virus

jwagner@umaxc.weeg.uiowa.edu (Joseph Wagner) (04/09/91)

I'm hoping someone out there can help me.  I have a user (I'm a
consultant) who thinks he may have a virus.  When he is using
HyperCard 1.2.5 with a stack that is 300-400 K in size (it is just one
specific stack) he is getting a lot of bombs.  When he tries to script
a new card for the stack he gets a bomb at various times as follows:
	As soon as he starts scripting
	When he tries to end the scripting

His machine also freezes at times when he does the above.  Sometimes
the bomb is an out of memory error.

All this work has been done on an SE/30 with 5mb of RAM and also on a
IIci with 4mb RAM with the same results.  Both machines are running
system version 6.0.5.

Any ideas would be greatly appreciated.  Since this is within HC, I
doubt if Disinfectant 2.4 will pick it up.  He is currently trying
Disinfectant.

Thanks in advance.

___________________________________________________________________________
| Joseph Wagner			   |  Life is divided into the horrible   |
| jwagner@umaxc.weeg.uiowa.edu     |  and the miserable - Woody Allen     |
___________________________________________________________________________

CANDERSO@uga.cc.uga.edu (Christopher T. Anderson) (04/11/91)

A Suggestion for your "possible HyperCard virus."  Running 6.0.5 on
those Macs suggests to me that you may be running into a heap-stack
collision.  If you are running a moderate number of INITs, you may
wish to get Heap Tool (available at Sumex).  This adjusts the size of
your heap upwards, avoiding such collisions.  Write back with any
questions.

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