ICMP firewall block problem

Hello, i'm just getting this kind of messages pretty often comming up when I use any kind of net browser:

<img>http://i42.tinypic.com/rmtehh.png</img>
And changing the URL each time, and IP sometimes too.
I find this annoying. I ran a in-deap scan with NOD32 (newest updated)
and I not a single file. I ever ran Malware byte's malware remover in deap scan. Not a single thing too..

Firewall log copy:

Code:

30.04.2010 19:08:08	Detected covert channel exploit in ICMP packet	192.168.0.194	192.168.0.1	ICMP			
30.04.2010 19:08:08	Detected covert channel exploit in ICMP packet	192.168.0.194	192.168.0.1	ICMP			
30.04.2010 16:02:57	Detected covert channel exploit in ICMP packet	192.168.0.194	192.168.0.1	ICMP			
30.04.2010 07:29:43	Detected covert channel exploit in ICMP packet	192.168.0.194	192.168.0.1	ICMP			
30.04.2010 07:29:43	Detected covert channel exploit in ICMP packet	192.168.0.194	192.168.0.1	ICMP			

.194 is my local IP
.1 is my router

Any ideas how to find this thing doing it or what ever?

 

Maybe this KB article will help.

Why did I get a “Detected covert channel exploit in ICMP packet” message in the firewall logs?

 

and see suggestion in the penultimate post for that blocked url
https://www.wilderssecurity.com/showthread.php?t=271142