Expert: Brian Benosky - 7/16/2008

Question
QUESTION: i have norton anti virus software and after i scan for viruses there are 4 that come up and i can't delete them they are backdoor trojan virus what can i do about this

ANSWER: Hi Shaun

I must first know what we are dealing with so that I can give you proper removal instructions.  Please download TrendMicro HijackThis! from the following link:
http://www.trendsecure.com/portal/en-US/threat_analytics/HJTInstall.exe
* Save HJTInstall.exe to your desktop.
* Doubleclick on the HJTInstall.exe icon on your desktop.
* By default it will install to C:\Program Files\Trend Micro\HijackThis.
* Click on Install.
* It will create a HijackThis icon on the desktop.
* Once installed, it will launch Hijackthis.
* Click on the Do a system scan and save a logfile button. It will scan and the log should open in notepad.
* Click on "Edit > Select All" then click on "Edit > Copy" and Paste the entire contents of the log (no attachments) into a follow up post here.

Brian

---------- FOLLOW-UP ----------

QUESTION: i ran hi jack this here is its log

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 6:53:49 PM, on 16/07/2008
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\XP\System32\smss.exe
C:\WINDOWS\XP\system32\winlogon.exe
C:\WINDOWS\XP\system32\services.exe
C:\WINDOWS\XP\system32\lsass.exe
C:\WINDOWS\XP\system32\svchost.exe
C:\WINDOWS\XP\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
C:\Program Files\Common Files\Symantec Shared\AppCore\AppSvc32.exe
C:\WINDOWS\XP\system32\spoolsv.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\WINDOWS\XP\system32\inetsrv\inetinfo.exe
C:\WINDOWS\XP\System32\snmp.exe
C:\WINDOWS\XP\system32\taskmgr.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\AdwareAlert\AdwareAlert.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\WINDOWS\XP\explorer.exe
C:\WINDOWS\XP\system32\wuauclt.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.optusnet.com.au/search
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.optusnet.com.au/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.optusnet.com.au/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = \blank.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer from OptusNet
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 0<local>
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O4 - HKLM\..\Run: [Desktop Service Centre] C:\Program Files\OptusNet Dial-up Internet\DSC.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [osCheck] "C:\Program Files\Norton AntiVirus\osCheck.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKCU\..\Run: [AdwareAlert] C:\Program Files\AdwareAlert\AdwareAlert.exe -boot
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\XP\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\XP\system32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\XP\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\XP\system32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: Add to AD Black List - C:\Program Files\Avant Browser\AddToADBlackList.htm
O8 - Extra context menu item: Block All Images from the Same Server - C:\Program Files\Avant Browser\AddAllToADBlackList.htm
O8 - Extra context menu item: Highlight - C:\Program Files\Avant Browser\Highlight.htm
O8 - Extra context menu item: Open All Links in This Page... - C:\Program Files\Avant Browser\OpenAllLinks.htm
O8 - Extra context menu item: Open In New Avant Browser - C:\Program Files\Avant Browser\OpenInNewBrowser.htm
O8 - Extra context menu item: Search - C:\Program Files\Avant Browser\Search.htm
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
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.optusnet.com.au/
O16 - DPF: {44990301-3C9D-426D-81DF-AAB636FA4345} (Symantec Script Runner Class) - https://www-secure.symantec.com/techsupp/asa/ss/sa/sa_cabs/tgctlsr.cab
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: Symantec Lic NetConnect service (CLTNetCnService) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: Symantec IS Password Validation (ISPwdSvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\isPwdSvc.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~2.EXE
O23 - Service: LiveUpdate Notice Service Ex (LiveUpdate Notice Ex) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSvcHst.exe
O23 - Service: LiveUpdate Notice Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
O23 - Service: Symantec Core LC - Unknown owner - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Symantec AppCore Service (SymAppCore) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\AppCore\AppSvc32.exe

--
End of file - 5462 bytes


the problem i'm having with the system is it is really slow and when i open some websites the writing is so tiny you cannot even read it

Answer
Hi Shaun

Please download ComboFix from here to your Desktop:

http://download.bleepingcomputer.com/sUBs/ComboFix.exe

* Disable and close any antivirus programs.
* Double click combofix.exe and follow the prompts.
* When finished, it shall produce a log for you.

Note: Do not mouseclick combofix’s window while its running. That may cause it to stall.


Next, please download Malwarebytes' Anti-Malware to your desktop from here:

http://www.besttechie.net/tools/mbam-setup.exe

Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to
    o Update Malwarebytes' Anti-Malware
    o Launch Malwarebytes' Anti-Malware
* then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform full scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Copy and paste that log here, along with the ComboFix log, and a fresh HJT log.

Brian