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Re: Warning - new trend of attempts to infect ISP users (possibly virus)

  • From: Kevin Oberman
  • Date: Wed Mar 03 12:53:55 2004

> Date: Wed, 3 Mar 2004 16:15:39 +0000 (GMT)
> From: "Stephen J. Wilcox" <>
> Sender:
> > > Erm is it me or are the writers of Bagle and Netsky determined to keep morphing 
> > > their code to outwit the virus scanners.. is this a new trend in virus writing - 
> > > beat the systems by evolving your code quicker than the security firms can 
> > > release updates?
> > 
> > new trend in that it started only a decade ago?
> Perhaps I'm only following this as its affecting us more, but I dont recall a 
> time previously when I've had so many viruses hitting us and getting thro our 
> scanners with nothing we can do about it. I dont recall seeing viruses with 
> variants as high as 'j' before, especially in the relatively short time since 
> the previous variants were out
> Seriously, drop some references if I'm off-track.. its just my perception and 
> I'm not an expert at all with viruses...

They are getting batter at it, but the WANK worm (1989) used
self-modifying code so that no two replicas were the same. (Note: This
worm only infected VMS systems running on the global DECNET internet,
mostly DOE, NASA, and DEC corporate systems.)
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail:			Phone: +1 510 486-8634

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