help! malicious site is trying to gain acces. should i worry?

hello. for the past few days my avast home edition has been notifying me of a malicious website trying to gain acces and it is blocking it. This occurs a minute or so after connecting to the internet with aol service.
this has never happend before and i have been using avast for a few years now. this thing is trying to gain acces, i am not browsing any page or anything it just does it on its own. avast will show 2 messages within minutes of each other after connecting, and then some hours later it will show one and then an hour later it will show the other. I would like some help in figuring out what this is and if i should worry about it. What can i do to prevent this. what site is this why is it trying to gain acces? please any help would greatly be appreciated.
here is what the avast log says.

22.07.2009 14:45:00 Network Shield: blocked access to malicious site htxp://88.80.7.152/cgi/joxnc.php?ixnc=4x4x<x5x4x6=x [ C:\Program Files\AOL 9.0\waol.exe ( 1012 ) ]
22.07.2009 14:47:15 Network Shield: blocked access to malicious site 88.80.7.152/cgi/yotziiii.php?ii=1<67<62x6444=6x<x5x4x6=x [ C:\Program Files\Internet Explorer\iexplore.exe ( 3016 ) ]
22.07.2009 15:20:51 Network Shield: blocked access to malicious site htxp://88.80.7.152/cgi/shxmcs.php?xncsx=4x4x<x5x4x6=x [ C:\Program Files\AOL 9.0\waol.exe ( 2652 ) ]
22.07.2009 15:28:47 Network Shield: blocked access to malicious site 88.80.7.152/cgi/bqw.php?kapfv=1<67<62x6444=6x<x5x4x6=x [ C:\Program Files\Internet Explorer\iexplore.exe ( 1580 ) ]
22.07.2009 17:24:49 Network Shield: blocked access to malicious site htxp://88.80.7.152/cgi/indmmmmm.php?mm=4x4x<x5x4x6=x [ C:\Program Files\AOL 9.0\waol.exe ( 2652 ) ]
22.07.2009 17:32:31 Network Shield: blocked access to malicious site 88.80.7.152/cgi/ttjjy.php?oo=1<67<62x6444=6x<x5x4x6=x [ C:\Program Files\Internet Explorer\iexplore.exe ( 1580 ) ]
22.07.2009 19:29:25 Network Shield: blocked access to malicious site htxp://88.80.7.152/cgi/jzpuk.php?ttttt=4x4x<x5x4x6=x [ C:\Program Files\AOL 9.0\waol.exe ( 2652 ) ]
22.07.2009 19:44:58 Network Shield: blocked access to malicious site 88.80.7.152/cgi/bqgwl.php?gap=1<67<62x6444=6x<x5x4x6=x [ C:\Program Files\Internet Explorer\IEXPLORE.EXE ( 2624 ) ]
22.07.2009 20:37:11 Network Shield: blocked access to malicious site 88.80.7.152/cgi/vvv.php?lll=1<67<62x6444=6x<x5x4x6=x [ C:\Program Files\Internet Explorer\IEXPLORE.EXE ( 2560 ) ]

i tried to type in the site in a browser to see what this site was, but avast detected it as a trj. here is what it says.

7/22/2009 10:39:37 AM SYSTEM 1368 Sign of “JS:ScriptPE-inf [Trj]” has been found in “htxp://search.mywebsearch.com/mywebsearch/AJmain.jhtml?searchfor=+http%3A%2F%2F88.80.7.152%2Fcgi%2Feukz.php%3Fuzjjj%3D4x4x%3Cx5x4x6%3Dx+&ptnrS=GRman000&st=bar{gzip}” file.

can anyone tell me how to get rid of this and if this is harmful and how can it affect me or my computer.
thank you.

one other thing…when i try to click on avast log viewer, it does not open for some reason. i clik it over and over and it wont open.

i have scanned my pc with a boot scan and while logged in and connected to internet and avast did not find any viruses.

Hi.Please download malwarebytes http://filehippo.com/download_malwarebytes_anti_malware/
Update it and run a full scan.If it finds any infected item,quarantine it and post back a log.

Agree with using MBAM. Good demand scanner.

What toolbars have you installed? This is classic adware behaviour, as indicated by the reference to “mywebsearch”.

mywebsearch is basic malware adware, get rid of it.