Snort mailing list archives

Re: Fizzer Virus Signature


From: Chris Keladis <Chris.Keladis () cmc optus net au>
Date: Wed, 14 May 2003 20:40:27 +1000

Jeremy Junginger wrote:

Many Thanks!  Also, could someone clarify what's going on with the |00|
stuff?  I've seen it here and there, but don't really understand it.  I
can see the obvious "Microsoft R Windows System Init" and "lservc.exe"
(which looks strange, because it should be looking for iservc.exe AFAIK.
Anyhow, thanks!

Windows for the most part, employs the Unicode character set.

Unicode has multi-byte representations of characters, so when displaying your normal ASCII characters represented as Unicode, the high-order (i think it was) bytes are set to 00.

If you look at most Windows protocols you will see the same thing going on. You can learn more about unicode from www.unicode.org




Regards,

Chris.



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