HP3000-L Archives

December 2003, Week 4

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Jeff Kell <[log in to unmask]>
Reply To:
Jeff Kell <[log in to unmask]>
Date:
Fri, 26 Dec 2003 13:27:15 -0500
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Johnson, Tracy wrote:
> Anyone ever got called from your ISP on the idea that your HP3000 is
> sending out 92 byte packets and this is indicative of virus-like
> behavior?
>
> I think only that a worm is pinging some of our systems. and the 92
> bytes is only a "can't-do" response to a Nachi virus attack.

I haven't packet-sniffed ICMP from the 3000 to determine a signature,
but as far as the 3000 having a Nachi attack, nope.

The Nachi ping is 106 bytes on the wire, 92 bytes of IP payload, and 64
bytes of ICMP data payload consisting of all 0xAA's.

Jeff

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