full-disclosure - New Windows worm?

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From: nick at virus-l.demon.co.uk (Nick FitzGerald)
Subject: New Windows worm?

dickcox@...pasa.com wrote:

> 5 of our office computers recently started behaving strangly.  Simptoms include
> -can't view logs in Event Viewer
> -can't transfer files over the network
> -can't view contents of directories (Windows directory and Program Files)
> -disable of copy/paste in Microsoft word
> -Lots of svchost errors
> 
> Anybody know what this might be caused by?  It all started today.  2
> of the computers are located here in the States, and 3 of them are
> located in Mexico.  I've already eliminated the new MSBlast worm. 

Are you sure they are not possible exposing DCOM/RPC services to a 
potentially "hostile" network?

They may not have been infected, but that may be because they are the 
wrong OS (or "odd" in some way such that the offset the worm uses 
doesn't work for those machines).  In such cases I'd expect you to see 
all kinds of weirdnesses of the sort you describe as the machine's RPC 
services will all be shot to bits internally.  Expect crashes.

Regards,

Nick FitzGerald