Not sure what I have - Internet Explorer is blocked

My husband's computer got infected. Last night MalwareBytes reported 749 infections. We cleaned those up, restarted in safe mode, and got rid of more infections, but Internet Explorer is blocked. It just says the PC can't connect to the internet, however I can plug the cable into another PC and the connection is fine. It must be whatever infection from last night is not cleaned up. I took a HijackThis log. HijackThis did complain that the hosts file was unwritable. When I went to edit the file per the instructions, I didn't see the hosts file in the directory. Can someone tell from this log, what the problem is? Thanks.


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 =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = wmplayer.exe //ICWLaunch
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=127.0.0.1:25543
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Favorites
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - C:\Program Files\Internet Download Manager\IDMIECC.dll
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O2 - BHO: Java™ Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: SmartSelect - {F4971EE7-DAA0-4053-9964-665D8EE6A077} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O2 - BHO: SingleInstance Class - {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081} - C:\Program Files\Yahoo!\Companion\Installs\cpn\YTSingleInstance.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [avast5] C:\PROGRA~1\ALWILS~1\Avast5\avastUI.exe /nogui
O4 - HKLM\..\Run: [Lexmark X6100 Series] "C:\Program Files\Lexmark X6100 Series\lxbfbmgr.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [Adobe Acrobat Speed Launcher] "C:\Program Files\Adobe\Acrobat 10.0\Acrobat\Acrobat_sl.exe"
O4 - HKLM\..\Run: [Acrobat Assistant 8.0] "C:\Program Files\Adobe\Acrobat 10.0\Acrobat\Acrotray.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [IDMan] C:\Program Files\Internet Download Manager\IDMan.exe /onboot
O4 - HKCU\..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKUS\S-1-5-20\..\Run: [ctfmon.exe] ctfmon.exe (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [IDMan] C:\Program Files\Internet Download Manager\IDMan.exe /s (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [_nltide_3] rundll32 advpack.dll,LaunchINFSectionEx nLite.inf,C,,4,N (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [ctfmon.exe] ctfmon.exe (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [_nltide_3] rundll32 advpack.dll,LaunchINFSectionEx nLite.inf,C,,4,N (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [ctfmon.exe] ctfmon.exe (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [_nltide_3] rundll32 advpack.dll,LaunchINFSectionEx nLite.inf,C,,4,N (User 'Default user')
O8 - Extra context menu item: Append Link Target to Existing PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Append to Existing PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert Link Target to Adobe PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Download all links with IDM - C:\Program Files\Internet Download Manager\IEGetAll.htm
O8 - Extra context menu item: Download FLV video content with IDM - C:\Program Files\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Download with IDM - C:\Program Files\Internet Download Manager\IEExt.htm
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
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: avast! Antivirus - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Mail Scanner - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: avast! Web Scanner - AVAST Software - C:\Program Files\Alwil Software\Avast5\AvastSvc.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE

--
End of file - 6728 bytes

Forgot to mention, I tried to do a Windows "System Restore", and it tells me "System Restore is not able to protect your computer. Please restart..." However it still doesn't work after restart, even in Safe Mode. This is another reason I believe the malware is to blame for the connectivity issue.

Merged posts. ~ OB

Edited by Orange Blossom, 26 February 2011 - 07:50 PM.

Hello and Welcome to the forums!

My name is Gringo and I'll be glad to help you with your computer problems.

Somethings to remember while we are working together.

• Do not run any other tool untill instructed to do so!
• Please Do not Attach logs or put in code boxes.
• Tell me about any problems that have occurred during the fix.
• Tell me of any other symptoms you may be having as these can help also.
• Do not run anything while running a fix.

We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.

Click on the Watch Topic Button and select Immediate Notification and click on proceed, this will help you to get notified faster when I have replied and make the cleaning process faster.


In order for me to see the status of the infection I will need a new set of logs to start with.

Please print out or make a copy in notpad of any instructions given, as sometimes it is necessary to go offline and you will lose access to them.

DeFogger:

• Please download DeFogger to your desktop.
  
  Double click DeFogger to run the tool.
  
• The application window will appear
• Click the Disable button to disable your CD Emulation drivers
• Click Yes to continue
• A 'Finished!' message will appear
• Click OK
• DeFogger may ask you to reboot the machine, if it does - click OK

Do not re-enable these drivers until otherwise instructed.

Download DDS:

• Please download DDS by sUBs from one of the links below and save it to your desktop:
  
  
  Download DDS and save it to your desktop
  
  Link1
  Link2
  Link3
  
  Please disable any anti-malware program that will block scripts from running before running DDS.
  
  
  • Double-Click on dds.scr and a command window will appear. This is normal.
  • Shortly after two logs will appear:
    
  • DDS.txt
  • Attach.txt
• A window will open instructing you save & post the logs
• Save the logs to a convenient place such as your desktop
• Copy the contents of both logs & post in your next reply

Scan With RKUnHooker

• Please Download Rootkit Unhooker Save it to your desktop.
• Now double-click on RKUnhookerLE.exe to run it.
• Click the Report tab, then click Scan.
• Check (Tick) Drivers, Stealth,. Uncheck the rest. then Click OK.
• Wait till the scanner has finished and then click File, Save Report.
• Save the report somewhere where you can find it. Click Close.

Copy the entire contents of the report and paste it in a reply here.

Note** you may get this warning it is ok, just ignore

"Rootkit Unhooker has detected a parasite inside itself!
It is recommended to remove parasite, okay?"

"just click on Cancel, then Accept".


information and logs:

• In your next post I need the following
  
  
• .logs from DDS
• log from RKUnHooker
• let me know of any problems you may have had

Gringo

Thanks for the reply Gringo - you can close this topic, my husband ended up re-installing the OS and things are working now.

Thanks for letting me know

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.