Windows Firewall Mystery Garbage

Archived from groups: comp.security.firewalls (More info?)

Hi all,
I came home from work, turned on the computer, and had a
problem with my router. After I found out my router was bad, I checked
my Windows Firewall log just for kicks. This is what I saw:

2004-06-08 00:27:15 CLOSE TCP 192.168.0.2 66.201.179.76 6346 3960 - -
- - - - -





Õ·$ 
%bòKê%ÆÒ&)(!?,ã.s$d1"F+‘˸vPFZÕÓ?af 7YTbPA
H.¸<Wæø¦µ )h DR½#Pc$.)x$
+M-&ž2C2˜)é7aë%e²çHiÞüët öüƒ;š–0 °ñ
J!ÇL!A"&u"8"…ž#/"ãÇ#b"C"v&¯$|(r-ë+Ý1D2X05:595oA%"ö~"ŒÅ#0Ù
#Õ ì1$y %j
3!!&tÆ"('Y#/(‰ì$< )#%K)"¼&Z*
"T'h*‚&í+?-à.@368c7÷:ÆB¿?w@ôJé"*Rñ#/+ #Ñ+´
G$s,er%!-"Ò&%./ž'(/<j(+0I6)51?n*[1Ëu+2X"|,§2ä'ƒ-Ú3i,Ä,1¸0î39ƒ;­8>SF¡@SDçOT/9w "/¯:>
â0Y;01;Í
~1Ç<®•2¯=¯­3—>±Å4€?²Þ5œ@'<6îAO"à8@B(„9'BÊ.(;Ct4Ê7Ú@a:4…=+>ã8ÃA‡JiAGI+T67üEx88­FR£9^G+
:

These characters went on for quite a while. What is this ? TIA.
Steve