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Is This File Infected? C:\windows\system32\drivers\etc\hosts


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#1 flossist

flossist

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Posted 20 October 2007 - 07:01 AM

hi i have been getting this result after scanning with AVG Antivirus for this file C:\WINDOWS\system32\drivers\etc\hosts; Result: Change, Status: Changed. Even when I scan again I am getting the same result. Has the file really been changed/healed or do I have a problem. Thank You. here is my processes logfile:


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 7:40:35 AM, on 10/20/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
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\system32\spoolsv.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
F:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
F:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
F:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
f:\Program Files\IVT Corporation\BlueSoleil\BTNtService.exe
F:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\Explorer.EXE
F:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
F:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
F:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSN Messenger\usnsvc.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLLoginProxy.exe
F:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
F:\PROGRA~1\Grisoft\AVGFRE~1\avgwb.dat
F:\Downloaded Programs\HiJackThis\HijackThis.exe

O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - F:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - F:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [AVG7_CC] F:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [Zone Labs Client] "F:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [ZoneAlarm Client] "F:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\RunServices: [RegisterDropHandler] F:\Program Files\ScannerU\TBRIDGE\BIN\RegisterDropHandler.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [SpybotSD TeaTimer] F:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] F:\PROGRA~1\Grisoft\AVGFRE~1\avgw.exe /RUNONCE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [AVG7_Run] F:\PROGRA~1\Grisoft\AVGFRE~1\avgw.exe /RUNONCE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [AVG7_Run] F:\PROGRA~1\Grisoft\AVGFRE~1\avgw.exe /RUNONCE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [AVG7_Run] F:\PROGRA~1\Grisoft\AVGFRE~1\avgw.exe /RUNONCE (User 'Default user')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://F:\PROGRA~1\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - F:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - F:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - F:\PROGRA~1\MICROS~2\INetRepl.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - F:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - F:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - F:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe (file missing)
O16 - DPF: {01010E00-5E80-11D8-9E86-0007E96C65AE} (SupportSoft SmartIssue) - https://www-secure.symantec.com/techsupp/as...trl/tgctlsi.cab
O16 - DPF: {01012101-5E80-11D8-9E86-0007E96C65AE} (SupportSoft Script Runner Class) - https://www-secure.symantec.com/techsupp/as...trl/tgctlsr.cab
O16 - DPF: {047C3241-279D-438A-BC34-9AD1C1910FC0} (DrsDnld Control) - http://www.mathtutor.ac.uk/Differentiation...rsDnldProj1.cab
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - https://www-secure.symantec.com/techsupp/as...rl/LSSupCtl.cab
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedC...bin/AvSniff.cab
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://by119fd.bay119.hotmail.msn.com/resources/MsnPUpld.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedC...n/bin/cabsa.cab
O16 - DPF: {A90A5822-F108-45AD-8482-9BC8B12DD539} (Crucial cpcScan) - http://www.crucial.com/controls/cpcScanner.cab
O16 - DPF: {CE28D5D2-60CF-4C7D-9FE8-0F47A3308078} (ActiveDataInfo Class) - https://www-secure.symantec.com/techsupp/as...rl/SymAData.cab
O16 - DPF: {E7DBFB6C-113A-47CF-B278-F5C6AF4DE1BD} - http://download.abacast.com/download/files/abasetup162.cab
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Autodesk Licensing Service - Autodesk - C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - F:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - F:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - F:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: BlueSoleil Hid Service - Unknown owner - f:\Program Files\IVT Corporation\BlueSoleil\BTNtService.exe
O23 - Service: GhostStartService - Symantec Corporation - F:\Program Files\Symantec\Norton Ghost 2003\GhostStartService.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Computer, Inc. - F:\Program Files\iPod\bin\iPodService.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: Macromedia Licensing Service - Unknown owner - C:\Program Files\Common Files\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

--
End of file - 7909 bytes

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#2 SifuMike

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Posted 02 November 2007 - 02:29 PM

Hello flossist,


It is normal that AVG shows that files, the MBR or Boot record to have changed. These are done during normal maintainance, when you or windows updates files or have had to correct errors on the drive.

The only time that you should worry is if they also show as infected.

To get AVG to quit showing them as changed, open the AVG Test Center, click the F3 key on your keyboard and tell it to accept the changes.

If it still shows something as changed after this.. delete the file named AVG7QT.DAT in C:\ and AVG will rebuild it the next time it is run.


General system maintenance can change the Hosts file even when it isn't apparent by visual inspection. AVG uses a checksum to compare a file before and after and a minor change or correct to the file would have caused it to appear changed.


Lets check your HOSTS file.
It's located at c:\windows\system32\drivers\etc\hosts.
You can open it up in Notepad.
If it's just some lines on top with a # in front of it and followed by 127.0.0.1 localhost, then you don't need to post it;
however, if there are others following 127.0.0.1 localhost, you may have to fix it.
Post it here if that's the case.
If I've saved you time & money,
please make a donation so I can keep helping people just like you! You can donate using a credit card and PayPal. Thank you!



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#3 SifuMike

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Posted 08 November 2007 - 06:00 PM

Due to inactivity, this thread will now be closed. If you need this topic reopened, please contact me or a member of the HJT Team and we will reopen it for you. Include the address of this thread in your request. If you should have a new issue, please start a new topic. This applies only to the original topic starter. Everyone else please begin a New Topic.
If I've saved you time & money,
please make a donation so I can keep helping people just like you! You can donate using a credit card and PayPal. Thank you!



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Asking for help via Private Message or Mail will be ignored - So If you need help, post your problem in the forum.




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