P.C. freezes during scan

[shortwave]

Hello, yesterday I followed the prompt to update to v4.8.1282 which appeared to go through satisfactorily. I then checked for definition updates, selected a standard scan and continued web browsing. Normally this doesn't give any problems, but since the update it ran for a few minutes and then everything froze. Eventually after repeatedly pressing the "Esc" key I was able to get Avast to quit (I couldn't get Task Manager to open) and things returned to normal.

So this evening I ran it again and just observed the progress with Task Manager running as well. Once again after an indicated 3% scan progress everything froze, and for 2 minutes the HDD was going crazy. This time I left it to see what happened and it seemed to recover and successfully completed the scan. On completion the log showed some files it was unable to scan - The usual SUPERAntispyware quarantine, and 3 others: 
C:\DRIVERS\MCDBF\SOURCE1\OTHER.EXE\BIOSLOCK.PIF
C:\DRIVERS\MCDBF\SOURCE1\OTHER.EXE\BIOSLOCK.EXE 
C:\DRIVERS\MCDBF\SOURCE1\TSADDON.EXE\UINSHHS.ARJ\UPDTAT.BAT
I've never seen these before. There is also the possibility the the M/S update this week could be the culprit, but I'm hoping somebody can offer advice.

Regards.

[CharleyO]

***

Your computer has a very bad infection but it seems that avast has caught it.

http://www.prevx.com/filenames/2103369454238900909-X1073084215/OTHER2EEXE.html

But, let's get more information.
Please download HijackThis from the link below. Do not download HJT to the desktop but instead download it into it's own folder on the hard drive.

Run the program but do not make any fixes and then post the log results using the "copy & paste" method. It will probably take more than one post to be able to get the complete log posted.

OR, you can post it as an attachment to your post by clicking on "Additional Options..." below left of the posting box.  Someone will review your log and then offer help.

http://filehippo.com/download_hijackthis/


***

[shortwave]

As requested the HJT log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 13:18:49, on 15/11/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16735)
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
c:\APPS\HIDSERVICE\HIDSERVICE.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Apoint2K\Apoint.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe
C:\Program Files\Innovative Solutions\Innovative System Optimizer - version 1.9\MemoryOptimizer.exe
C:\Program Files\Desktop Calendar\Desktop Calendar.exe
C:\Program Files\Apoint2K\HidFind.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\Program Files\Apoint2K\Apntex.exe
C:\Program Files\Mozilla Thunderbird\thunderbird.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
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
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.nec-online.co.uk/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=localhost:12080
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O4 - HKLM\..\Run: [Apoint] "C:\Program Files\Apoint2K\Apoint.exe"
O4 - HKLM\..\Run: [SECEDIT] C:\Drivers\SECEDIT.EXE
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe"
O4 - HKLM\..\Run: [InnovativeMemoryOptimizer] C:\Program Files\Innovative Solutions\Innovative System Optimizer - version 1.9\MemoryOptimizer.exe
O4 - HKCU\..\Run: [Desktop Calendar] C:\Program Files\Desktop Calendar\Desktop Calendar.exe
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nwprovau.dll
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.nl/scanforvirus-en/kavwebscan_unicode.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1159614706021
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Generic Service for HID Keyboard Input Collections (GenericHidService) - Unknown owner - c:\APPS\HIDSERVICE\HIDSERVICE.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

--
End of file - 6241 bytes


Awaiting your further instructions.

[FreewheelinFrank]

Nothing obvious in the log, and the files mentioned are not necessarily malicious. (up load to VirusTotal if you want confirmation.) I suspect your problem with the scan stalling is one only one of the avast! team can answer, and there's no guarantee they'll notice the thread, but keeping to one thread means it's clearer what's going on.