TV show playing in background, HJ Log

Periodically, audio will start playing in the background that sounds like some sort of TV show. It was a cooking show one time, something about finances and then something about a criminal trial later. They may be some sort of ads, but only a brief snippet plays before they stop. I had been having problems with a virus last week and ultimately reformated my computer, a Compaq Presario. It's been running smoothly since for the most part, except for the audio stuff.

I'm moving tomorrow so may not be able to reply for a day or two, but will try to check in tomorrow night.

Thanks for your help!

Here's the log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:42:52 AM, on 5/27/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Avira\AntiVir Desktop\sched.exe
C:\Program Files\Avira\AntiVir Desktop\avguard.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Avira\AntiVir Desktop\avgnt.exe
C:\Program Files\Google\Quick Search Box\GoogleQuickSearchBox.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\DOCUME~1\Sara\LOCALS~1\Temp\b.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.2.4204.1700\swg.dll
O2 - BHO: Google Dictionary Compression sdch - {C84D72FE-E17D-4195-BB24-76C02E2E7C4E} - C:\Program Files\Google\Google Toolbar\Component\fastsearch_B7C5AC242193BB3E.dll
O3 - Toolbar: Google Toolbar - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - C:\Program Files\Google\Google Toolbar\GoogleToolbar_32.dll
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [Google Quick Search Box] "C:\Program Files\Google\Quick Search Box\GoogleQuickSearchBox.exe" /autorun
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe"
O4 - HKCU\..\Run: [Cognac] C:\DOCUME~1\Sara\LOCALS~1\Temp\b.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-21-1390067357-412668190-725345543-1004\..\Run: [MSMSGS] "C:\Program Files\Messenger\MSMSGS.EXE" /background (User 'Colin')
O4 - HKUS\S-1-5-21-1390067357-412668190-725345543-1004\..\Run: [swg] "C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe" (User 'Colin')
O4 - HKUS\S-1-5-21-1390067357-412668190-725345543-1004\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe (User 'Colin')
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1247624011584
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O23 - Service: Avira AntiVir Scheduler (AntiVirSchedulerService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe

--
End of file - 4267 bytes

So has anyone else ever heard of anything like this?

We're sorry, but it is necessary to close your topic because you have replied to it prior to receiving a response from a helper.

Due to adding on to your topic with your second post it is highly unlikely that you would have received a response. Our helpers are looking for topics with zero responses. When you post replies to your own topic, it no longer has zero responses, and so it appears that you have received help when in fact, you have not.

If you still require help, please open a new thread in the Malware Removal forum and wait for assistance. Please do not run additional programs and/or post additional logs. Just your HijackThis log to start with is adequate. Your helper will ask for additional logs as needed. DO NOT reply to your own topic until you have received a response from a helper. Be patient. There are others who have been waiting longer than you, so do not expect an immediate reply.