Well the random audio started again so this must not have been a false positive. So here is a copy of the latest log from HijackThis that you may find helpful:
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 10:27:17 PM, on 6/5/2014
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v9.00 (9.00.8112.16450)
Boot mode: Normal
Running processes:
C:\Program Files (x86)\Siber Systems\AI RoboForm\robotaskbaricon.exe
C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\QLBCtrl.exe
C:\Program Files (x86)\AVG\AVG2012\avgtray.exe
C:\Program Files (x86)\Hewlett-Packard\Shared\hpqToaster.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Mozilla Firefox\plugin-container.exe
C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerPlugin_13_0_0_214.exe
C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerPlugin_13_0_0_214.exe
C:\Program Files (x86)\Trend Micro\HiJackThis\HiJackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
http://ie.redirect.hp.com/svs/rdr?TYPE=3&tp=iehome&locale=en_us&c=91&bd=Pavilion&pf=cnnbR0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.bing.com/rewards/dashboard?FORM=MH00ZP&OCID=MH00ZP/R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
http://ie.redirect.hp.com/svs/rdr?TYPE=3&tp=iehome&locale=en_us&c=91&bd=Pavilion&pf=cnnbR1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
http://go.microsoft.com/fwlink/?LinkId=54896R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
http://go.microsoft.com/fwlink/?LinkId=54896R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = <-loopback>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
R3 - URLSearchHook: FCToolbarURLSearchHook Class - {96b985b7-3cf9-456a-9db6-791710e60f5f} - C:\Program Files (x86)\MyPoints Point Finder\Helper.dll
R3 - URLSearchHook: FCToolbarURLSearchHook Class - {4219427b-0228-4356-a78b-eb7668d37d07} - C:\Program Files (x86)\InboxDollars\Helper.dll
R3 - URLSearchHook: FCToolbarURLSearchHook Class - {b03b3ced-82cf-43b6-b2d4-1b40851c7658} - C:\Program Files (x86)\Publishers Clearing House Prize Bar\Helper.dll
R3 - URLSearchHook: (no name) - {1392b8d2-5c05-419f-a8f6-b9f15a596612} - (no file)
F2 - REG:system.ini: UserInit=userinit.exe,
O1 - Hosts: ::1 localhost
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files (x86)\AVG\AVG2012\avgssie.dll
O2 - BHO: FCTBPos00Pos - {614BDA1F-9BEF-4CD1-BDE4-FA4804929B4A} - C:\Program Files (x86)\MyPoints Point Finder\Toolbar.dll (file missing)
O2 - BHO: TTB000000 - {62960D20-6D0D-1AB4-4BF1-95B0B5B8783A} - (no file)
O2 - BHO: FCTBPos00Pos - {6FFB615D-E8CE-4ADD-8D9F-31C4BE9C26E4} - C:\Program Files (x86)\InboxDollars\Toolbar.dll
O2 - BHO: RoboForm BHO - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O2 - BHO: AVG SafeGuard toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files (x86)\AVG SafeGuard toolbar\18.1.5.514\AVG SafeGuard toolbar_toolbar.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: Google Gears Helper - {E0FEFE40-FBF9-42AE-BA58-794CA7E3FB53} - C:\Program Files (x86)\Google\Google Gears\Internet Explorer\0.5.36.0\gears.dll
O2 - BHO: FCTBPos00Pos - {E32D05F6-B1BB-4F2F-A045-042144FCD2E0} - C:\Program Files (x86)\Publishers Clearing House Prize Bar\Toolbar.dll
O3 - Toolbar: &RoboForm Toolbar - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O3 - Toolbar: MyPoints Point Finder - {89A2510A-B4B6-4683-BEC9-1B96700BC7F1} - C:\Program Files (x86)\MyPoints Point Finder\Toolbar.dll (file missing)
O3 - Toolbar: InboxDollars - {47980628-3844-42AA-A0DD-E2D86BBA9600} - C:\Program Files (x86)\InboxDollars\Toolbar.dll
O3 - Toolbar: Publishers Clearing House PrizeBar - {0FB24E1F-D247-4F4E-8DDD-9E18EA10829F} - C:\Program Files (x86)\Publishers Clearing House Prize Bar\Toolbar.dll
O3 - Toolbar: AVG SafeGuard toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files (x86)\AVG SafeGuard toolbar\18.1.5.514\AVG SafeGuard toolbar_toolbar.dll
O4 - HKLM\..\Run: [UpdateLBPShortCut] "C:\Program Files (x86)\CyberLink\LabelPrint\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\CyberLink\LabelPrint" UpdateWithCreateOnce "Software\CyberLink\LabelPrint\2.5"
O4 - HKLM\..\Run: [UpdatePSTShortCut] "C:\Program Files (x86)\CyberLink\DVD Suite\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\CyberLink\DVD Suite" UpdateWithCreateOnce "Software\CyberLink\PowerStarter"
O4 - HKLM\..\Run: [QlbCtrl.exe] "C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\QlbCtrl.exe" /Start
O4 - HKLM\..\Run: [UpdateP2GoShortCut] "C:\Program Files (x86)\CyberLink\Power2Go\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\CyberLink\Power2Go" UpdateWithCreateOnce "SOFTWARE\CyberLink\Power2Go\6.0"
O4 - HKLM\..\Run: [UpdatePDIRShortCut] "C:\Program Files (x86)\CyberLink\PowerDirector\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\CyberLink\PowerDirector" UpdateWithCreateOnce "SOFTWARE\CyberLink\PowerDirector\7.0"
O4 - HKLM\..\Run: [UCam_Menu] "C:\Program Files (x86)\Hewlett-Packard\Media\Webcam\MUITransfer\MUIStartMenu.exe" "C:\Program Files (x86)\Hewlett-Packard\Media\Webcam" update "Software\Hewlett-Packard\Media\Webcam"
O4 - HKLM\..\Run: [WirelessAssistant] C:\Program Files (x86)\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
O4 - HKLM\..\Run: [AVG_TRAY] "C:\Program Files (x86)\AVG\AVG2012\avgtray.exe"
O4 - HKLM\..\Run: [Microsoft Default Manager] "C:\Program Files (x86)\Microsoft\Search Enhancement Pack\Default Manager\DefMgr.exe" -resume
O4 - HKLM\..\Run: [vProt] "C:\Program Files (x86)\AVG SafeGuard toolbar\vprot.exe"
O4 - HKLM\..\Run: [Smart File Advisor] "C:\Program Files (x86)\Smart File Advisor\sfa.exe" /checkassoc
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\RunOnce: [B Register C:\Program Files (x86)\DivX\DivX Plus Web Player\ie\DivXHTML5\DivXHTML5.dll] "C:\Windows\system32\rundll32.exe" "C:\Program Files (x86)\DivX\DivX Plus Web Player\ie\DivXHTML5\DivXHTML5.dll",DllRegisterServer
O4 - HKCU\..\Run: [RoboForm] "C:\Program Files (x86)\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe"
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [otrokes] rundll32 "C:\Windows\system32\config\systemprofile\AppData\Local\otrokes.dll",otrokes (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [otrokes] rundll32 "C:\Windows\system32\config\systemprofile\AppData\Local\otrokes.dll",otrokes (User 'Default user')
O8 - Extra context menu item: Customize Menu - file://C:/Program Files (x86)/Siber Systems/AI RoboForm/RoboFormComCustomizeIEMenu.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~2\MICROS~2\Office12\EXCEL.EXE/3000
O8 - Extra context menu item: Fill Forms - file://C:/Program Files (x86)/Siber Systems/AI RoboForm/RoboFormComFillForms.html
O8 - Extra context menu item: Save Forms - file://C:/Program Files (x86)/Siber Systems/AI RoboForm/RoboFormComSavePass.html
O8 - Extra context menu item: Show RoboForm Toolbar - file://C:/Program Files (x86)/Siber Systems/AI RoboForm/RoboFormComShowToolbar.html
O9 - Extra button: (no name) - {09C04DA7-5B76-4EBC-BBEE-B25EAC5965F5} - C:\Program Files (x86)\Google\Google Gears\Internet Explorer\0.5.36.0\gears.dll
O9 - Extra 'Tools' menuitem: &Gears Settings - {09C04DA7-5B76-4EBC-BBEE-B25EAC5965F5} - C:\Program Files (x86)\Google\Google Gears\Internet Explorer\0.5.36.0\gears.dll
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~2\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra 'Tools' menuitem: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra button: Save - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra 'Tools' menuitem: Save Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra button: Run WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra 'Tools' menuitem: Launch WinHTTrack - {36ECAF82-3300-8F84-092E-AFF36D6C7040} - C:\Program Files\WinHTTrack\WinHTTrackIEBar.dll
O9 - Extra button: Show Toolbar - {724d43aa-0d85-11d4-9908-00400523e39a} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra 'Tools' menuitem: Show RoboForm Toolbar - {724d43aa-0d85-11d4-9908-00400523e39a} - C:\Program Files (x86)\Siber Systems\AI RoboForm\roboform.dll
O9 - Extra button: Skype Click to Call - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~2\MICROS~2\Office12\REFIEBAR.DLL
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O16 - DPF: {12545791-AC9A-44B2-8964-0DA216C4A4E5} (PARTcommunity 3D Web Viewer) -
http://misumi-configurator-de.partcommunity.com/partserver/viewer/cnsweb3d/cnsweb3d.cabO16 - DPF: {CB50428B-657F-47DF-9B32-671F82AA73F7} (Photodex Presenter AX control) -
http://www.photodex.com/pxplay.cabO16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553530000} -
http://fpdownload2.macromedia.com/get/shockwave/cabs/flash/swflash.cabO16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} -
http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cabO18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files (x86)\AVG\AVG2012\avgpp.dll
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~2\COMMON~1\Skype\SKYPE4~1.DLL
O18 - Protocol: viprotocol - {B658800C-F66E-4EF3-AB85-6C0C227862A9} - C:\Program Files (x86)\Common Files\AVG Secure Search\ViProtocolInstaller\18.1.5\ViProtocol.dll
O20 - Winlogon Notify: otrokes - C:\Windows\system32\config\systemprofile\AppData\Local\otrokes.dll (file missing)
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\Windows\system32\browseui.dll
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Andrea ST Filters Service (AESTFilters) - Unknown owner - C:\Windows\System32\DriverStore\FileRepository\stwrt64.inf_6ef279c8\AESTSr64.exe (file missing)
O23 - Service: Agere Modem Call Progress Audio (AgereModemAudio) - Unknown owner - C:\Windows\system32\agr64svc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: Ati External Event Utility - Unknown owner - C:\Windows\system32\Ati2evxx.exe (file missing)
O23 - Service: AVGIDSAgent - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2012\AVGIDSAgent.exe
O23 - Service: AVG WatchDog (avgwd) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\AVG2012\avgwdsvc.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Com4QLBEx - Hewlett-Packard Development Company, L.P. - C:\Program Files (x86)\Hewlett-Packard\HP Quick Launch Buttons\Com4QLBEx.exe
O23 - Service: DAZ Content Management Service (DAZContentManagementService) - Unknown owner - C:\Program Files\DAZ 3D\Content Management Service\ContentManagementServer.exe
O23 - Service: @dfsrres.dll,-101 (DFSR) - Unknown owner - C:\Windows\system32\DFSR.exe (file missing)
O23 - Service: FABS - Helping agent for MAGIX media database (Fabs) - MAGIX AG - C:\Program Files (x86)\Common Files\MAGIX Services\Database\bin\FABS.exe
O23 - Service: Seagate Service (FreeAgentGoNext Service) - Seagate Technology LLC - C:\Program Files (x86)\Seagate\SeagateManager\Sync\FreeAgentService.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Update Service (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: HitmanPro Scheduler (HitmanProScheduler) - SurfRight B.V. - C:\Program Files\HitmanPro\hmpsched.exe
O23 - Service: HP Health Check Service - Hewlett-Packard - c:\Program Files (x86)\Hewlett-Packard\HP Health Check\hphc_service.exe
O23 - Service: hpqwmiex - Hewlett-Packard Development Company, L.P. - C:\Program Files (x86)\Hewlett-Packard\Shared\hpqwmiex.exe
O23 - Service: HP Service (hpsrv) - Unknown owner - C:\Windows\system32\Hpservice.exe (file missing)
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files (x86)\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: MBAMScheduler - Malwarebytes Corporation - C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamscheduler.exe
O23 - Service: MBAMService - Malwarebytes Corporation - C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamservice.exe
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NLS Service (nlsX86cc) - Nalpeiron Ltd. - C:\Windows\SysWOW64\NLSSRV32.EXE
O23 - Service: PACE License Services (PaceLicenseDServices) - PACE Anti-Piracy, Inc. - C:\Program Files (x86)\Common Files\PACE\Services\LicenseServices\LDSvc.exe
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Recovery Service for Windows - Unknown owner - C:\Program Files (x86)\SMINST\BLService.exe
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\SLsvc.exe,-101 (slsvc) - Unknown owner - C:\Windows\system32\SLsvc.exe (file missing)
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: SpyHunter 4 Service - Enigma Software Group USA, LLC. - C:\PROGRA~1\ENIGMA~1\SPYHUN~1\SH4SER~1.EXE
O23 - Service: Audio Service (STacSV) - Unknown owner - C:\Windows\System32\DriverStore\FileRepository\stwrt64.inf_6ef279c8\STacSV64.exe (file missing)
O23 - Service: TV Background Capture Service (TVBCS) (TVCapSvc) - Unknown owner - C:\Program Files (x86)\Hewlett-Packard\Media\TV\Kernel\TV\TVCapSvc.exe
O23 - Service: TV Task Scheduler (TVTS) (TVSched) - Unknown owner - C:\Program Files (x86)\Hewlett-Packard\Media\TV\Kernel\TV\TVSched.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: vToolbarUpdater18.1.5 - Unknown owner - C:\Program Files (x86)\Common Files\AVG Secure Search\vToolbarUpdater\18.1.5\ToolbarUpdater.exe
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)
--
End of file - 17386 bytes
Continues in next post...