I remember it. It was a real event. I was working closely with IBM at the
time. I had a BP or similar IBM PROFS account.

It was a Christmas greeting in the PROFS system that when you opened it, it
executed a script that re-sent the greeting to everyone in your PROFS
address book. IBM had to take down PROFS for a day or two to get things
cleaned up.

Charles



-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Hal Merritt
Sent: Sunday, April 30, 2006 11:58 PM
To: [email protected]
Subject: Re: Batch JCL on Windows/.NET ???


I have been curious about this so called "Christmas Tree Virus" for many
years. I hear it mentioned, but have never been able to verify it as a
real event or urban legend. 

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Tim Hare
Sent: Friday, April 28, 2006 10:40 AM
To: [email protected]
Subject: Re: Batch JCL on Windows/.NET ???

"Now you can get JCL errors AND viruses right on the same machine."

You always could -  ex: the "Christmas Tree Virus" which was probably
more 
of a "worm" on VM/Profs  which I'm sure affected some machines with MVS 
guests (and it's old enough that it was called MVS then I believe, 
possibly MVS/XA or /ESA but still MVS).

It's just a lot harder to do, and a LOT  harder to infect the operating 
system itself. Applications, however, are probably easier.

Tim Hare
Senior Systems Programmer
Florida Department of Transportation
(850) 414-4209

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