ICMP reply, but no stimulus

[Robert Buckley <rbuckley () synapsemail com>]

Anyone ever see this payload before?

There is a windows 2k system that is replying to its two Wins servers and
two DNS servers with echo replies, but no icmp 
request has been sent to it.

11:39:09.494312 IP 10.n.n.n > 10.n.n.n: icmp 44: echo reply seq 11106
0x0000   4500 0040 058e 0000 8001 97f4 0ab0 c4c8        E..@............
0x0010   0ab0 c312 0000 631d 001d 2b62 150f 0800        ......c...+b....
0x0020   4545 4545 4545 4545 4545 4545 4545 4545        EEEEEEEEEEEEEEEE
0x0030   4545 4545 4545 4545 4545 4545 4545 4545        EEEEEEEEEEEEEEEE

> Robert Buckley
> Security Administration
> ********************************************************************
> The information in this transmission is privileged and confidential 
> and is intended only for the recipient(s) listed above.  If you have 
> received this transmission in error, please notify the sender 
> immediately by E-mail and delete the original message.
> ********************************************************************

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