ICMP packets but No Found Rule........

Bug?

I'm at IDLE when this happens.
No File Sharing.
Been like this since install.

This has happened after Multiple new IP addresses.
/Flushed the DNS every time.

No Spy ware/Add crap found by Spy bot.
This is what I get.

7/30/2008 8:59:34 PM No usable rule found 91.153.0.229 xxx.xxx.xxx.xxx ICMP

What I get from RIPE:

Code:

% This is the RIPE Whois query server #3.
% The objects are in RPSL format.
%
% Rights restricted by copyright.
% See http://www.ripe.net/db/copyright.html

% Note: This output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '91.153.0.0 - 91.153.255.255'

inetnum:         91.153.0.0 - 91.153.255.255
netname:         ELISA-ADSL
descr:           Elisa Oyj
country:         FI
admin-c:         KH-RIPE
tech-c:          KH-RIPE
status:          ASSIGNED PA "status:" definitions
mnt-by:          ELISA-MNT
source:          RIPE # Filtered

role:            Elisa Hostmaster
address:         Elisa Oyj
admin-c:         KH-RIPE
tech-c:          KH-RIPE
nic-hdl:         KH-RIPE
abuse-mailbox:   abuse@elisa.fi
mnt-by:          ELISA-MNT
source:          RIPE # Filtered

% Information related to '91.152.0.0/13AS719'

route:           91.152.0.0/13
descr:           Elisa Oyj
origin:          AS719
mnt-by:          ELISA-MNT
source:          RIPE # Filtered

I have alot of these guys trying to ping EKRN.exe.

Most have turned out to be Universitys, but I am now starting to smell rotten trout.

Please amuse me.