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Browser Result Hijack


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5 replies to this topic

#1 chengjih

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Posted 27 February 2007 - 04:35 PM

I'm having a browser hijack, where clicking on a search result in yahoo/google will bounce me to some paid search site. This is happening in IE7.

MS Defender and Spybot S&D haven't turned up anything. RootKitRevealer doesn't run. Similarly, the MS Malicious Software Removal Tool for this month seems to run, but keeps popping up again in the "Updates waiting to be installed" alert, so I assume it's not really running.

Here are the fixwareout and hijackthis logs:

fixwareout report.txt
=================

Fixwareout Last edited 2/11/2007
Post this report in the forums please
...
»»»»»Prerun check

»»»»» System restarted

»»»»» Postrun check
HKLM\SOFTWARE\~\Winlogon\ "System"=""
....
....
»»»»» Misc files.
C:\Documents and Settings\Owner\Application Data\Install.dat Deleted
....
»»»»» Checking for older varients.
....

Search five digit cs, dm, kd, jb, other, files.
The following files NEED TO BE SUBMITTED to one of the following URL'S for further inspection.



Click browse, find the file then click submit.
http://www.virustotal.com/flash/index_en.html
Or http://virusscan.jotti.org/

»»»»» Other



»»»»» Current runs
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Recguard"="C:\\WINDOWS\\SMINST\\RECGUARD.EXE"
"SunKist"="C:\\Program Files\\Digital Media Reader\\shwicon2k.exe"
"IgfxTray"="C:\\WINDOWS\\system32\\igfxtray.exe"
"HotKeysCmds"="C:\\WINDOWS\\system32\\hkcmd.exe"
"SynTPLpr"="C:\\Program Files\\Synaptics\\SynTP\\SynTPLpr.exe"
"SynTPEnh"="C:\\Program Files\\Synaptics\\SynTP\\SynTPEnh.exe"
"RemoteControl"="\"C:\\Program Files\\CyberLink\\PowerDVD\\PDVDServ.exe\""
"Lexmark X1100 Series"="\"C:\\Program Files\\Lexmark X1100 Series\\lxbkbmgr.exe\""
"Microsoft Works Update Detection"="C:\\Program Files\\Common Files\\Microsoft Shared\\Works Shared\\WkUFind.exe"
"QuickTime Task"="\"C:\\Program Files\\QuickTime\\qttask.exe\" -atboottime"
"AOLDialer"="C:\\Program Files\\Common Files\\AOL\\ACS\\AOLDial.exe"
"ISUSPM Startup"="C:\\PROGRA~1\\COMMON~1\\INSTAL~1\\UPDATE~1\\ISUSPM.exe -startup"
"ISUSScheduler"="\"C:\\Program Files\\Common Files\\InstallShield\\UpdateService\\issch.exe\" -start"
"Windows Defender"="\"C:\\Program Files\\Windows Defender\\MSASCui.exe\" -hide"
"AVG7_CC"="C:\\PROGRA~1\\Grisoft\\AVGFRE~1\\avgcc.exe /STARTUP"
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"MSMSGS"="\"C:\\Program Files\\Messenger\\msmsgs.exe\" /background"
"ctfmon.exe"="C:\\WINDOWS\\system32\\ctfmon.exe"
....
Hosts file was reset, If you use a custom hosts file please replace it
»»»»» End report »»»»»
=================

hijackthis log:
=================
Logfile of HijackThis v1.99.1
Scan saved at 4:12:38 PM, on 2/27/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)

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:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Digital Media Reader\shwicon2k.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmon.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\TEMP\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://us.rd.yahoo.com/customize/ycomp_adb.../search/ie.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.nytimes.com/
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.nytimes.com
R3 - Default URLSearchHook is missing
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\Userinit.exe
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Class - {6EBA116E-AFA0-AFC9-64B3-9AA53F6D32B2} - C:\WINDOWS\kcvjd1.dll (file missing)
O3 - Toolbar: Google Web Accelerator - {DB87BFA2-A2E3-451E-8E5A-C89982D87CBF} - C:\Program Files\Google\Web Accelerator\GoogleWebAccToolbar.dll (file missing)
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [SunKist] C:\Program Files\Digital Media Reader\shwicon2k.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [Lexmark X1100 Series] "C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe"
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [AOLDialer] C:\Program Files\Common Files\AOL\ACS\AOLDial.exe
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\COMMON~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O9 - Extra button: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra 'Tools' menuitem: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\WINDOWS\system32\shdocvw.dll
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.dll
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {08BEF711-06DA-48B2-9534-802ECAA2E4F9} (PlxInstall Class) - https://www.plaxo.com/down/latest/PlaxoInstall.cab
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
=================

Thanks for any help.

Edited by chengjih, 27 February 2007 - 04:37 PM.


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#2 htv8

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Posted 28 February 2007 - 09:08 AM

Hello chengjih, and welcome to BleepingComputer. I will be handling your log to help you get cleaned up.

Please take note of the following:
1. I will start working on your malware issues, this may or may not solve other issues you have with your machine.
2. The fixes are specific to your problem and should only be used for this issue on this machine.
3. The process is not instant. Please continue to review my answers until I tell you your machine is clean.
4. If there's anything that you don't understand, ask your question(s) before proceeding with the fixes.
5. Please reply to this thread. Do not start a new topic.

Please give me some time to look over your log and I will get back to you as soon as possible.

Thanks,

htv8
If I have not posted back within 24 hours, feel free to send me a PM with your topic link.

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#3 htv8

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Posted 01 March 2007 - 08:03 AM

OK. Let's get started.

IMPORTANT
It is important that you use a software firewall, to prevent unauthorised traffic both out of and into your computer.
Your log doesn't show a firewall running. If you have disabled your firewall, please re-enable it.
If you do not have a firewall installed, please download and install one of these good (and free) products:
- ZoneAlarm Free
- Outpost Firewall Free
- Kerio

NOTE: Never install more than one firewall program on your system. Several together can give problems and decrease the reliability of it seriously.

Please print out or copy this page to Notepad. This will be useful as there is a possibility some of the instructions will need to be carried out where internet access is not available. A print out of the instructions would be a good reference to make sure you don't get lost. You may also like to save these instructions in Word/Notepad to the Desktop where they can be easily found for the same reasons as above.
Also make sure to work through the fixes in the exact order in which they are mentioned below and do not miss any steps out. If you have any queries about the process or just general questions, ask your question(s) before proceeding with the fixes.


Step #1: moving HijackThis
You are running HijackThis from C:\TEMP. Because HijackThis is both for analysis and repair it is essential that it runs from within its own folder: HijackThis makes backups of the repairs in case there is a need for reversal of the procedure.
Please move HijackThis.exe into its own directory on the C: drive by following these steps:
1. Navigate to the C: drive using Windows Explorer or My Computer.
2. Right-click in the folder window and select New > Folder.
3. Name the folder to "HijackThis" (without the quotation marks).
4. Move HijackThis.exe from C:\TEMP into the newly created directory.
NOTE: HijackThis.exe is now located in C:\HijackThis.

Step #2: temporarily disable Windows Defender real-time protection
You have Windows Defender running on your machine and that is good. However, Windows Defender real-time protection can interfere with the changes you will make on your system, so please follow these instructions to temporarily disable Windows Defender real-time protection:
1. Open Windows Defender.
2. Click Tools, and then click General Settings.
3. Scroll down and uncheck the checkbox labelled "Turn on real-time protection (recommended)".
4. Click Save.
5. Close Windows Defender.

You can re-enable Windows Defender real-time protection once your system is clean.

Step #3: Gromozon rootkit removal
You are infected with the Gromozon rootkit. Download and run GromozonRemTool to get rid of it.
Download GromozonRemTool (PrevxFixGrom.exe)

The tool prompts you to download and try the Prevx1 software after you clean the PC, just say No.
Post the entire contents of C:\gromozon_removal.txt in your next reply.

Step #4: HijackThis fix
Scan again with HijackThis. Put a checkmark by these entries if they are present, double-checking to be sure that only these entries are checked:
R3 - Default URLSearchHook is missing
O2 - BHO: Class - {6EBA116E-AFA0-AFC9-64B3-9AA53F6D32B2} - C:\WINDOWS\kcvjd1.dll (file missing)


Close all other windows - you should only see HijackThis on your Desktop - and then click the button labelled "Fix checked".

Step #5: file/folder deletion
First enable the viewing of hidden files in Windows XP by following these steps:
1. Close all programs so that you are at your Desktop.
2. Double-click on the My Computer icon.
3. Select the Tools menu and then click on the menu option labelled "Folder Options".
4. After the new window appears select the View tab.
5. Remove the checkmark from the checkbox labelled "Hide file extensions for known file types".
6. Remove the checkmark from the checkbox labelled "Hide protected operating system files".
7. Select the radio button labelled "Show hidden files and folders".
8. Press the Apply button and then press the OK button and shutdown My Computer.

Your computer is now configured to show all hidden system files and folders.

Reboot your computer into Safe Mode. Restart your computer and gently tap the F8 key repeatedly on your keyboard while starting up until you are presented with a new menu in which you can select the option for Safe Mode using the arrow keys on your keyboard.
For more information on how to boot your computer into Safe Mode, see this reference: How to start Windows into Safe Mode.

Now delete the following file (do not be concerned if it does not exist):
C:\WINDOWS\kcvjd1.dll

Reboot your computer to boot back into normal mode.

Step #6: HijackThis scan
Scan with HijackThis again and post a new HijackThis log.
If I have not posted back within 24 hours, feel free to send me a PM with your topic link.

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#4 chengjih

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Posted 05 March 2007 - 12:46 PM

Sorry it took a little while to get back to you: I didn't have access to the client's laptop until today.

Anyway, here are the results of the Gromozon removal tool and the newest HijackThis log:

===============
gromozon_removal.log:
===============

Removal tool loaded into memory
------------------------------------
Executing rootkit removal engine....
------------------------------------
Disabling rootkit file: \\?\C:\WINDOWS\system32\lpt6.gpc
\\?\C:\WINDOWS\system32\lpt6.gpc
Resetting file permissions...
Clearing attributes...
Removing file...
Rootkit removed! Cleaning up...

Removing temp files...

===============
hijackthis.log
===============
Logfile of HijackThis v1.99.1
Scan saved at 12:35:38 PM, on 3/5/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16414)

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:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\PROGRA~1\COMMON~1\AOL\ACS\AOLacsd.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Digital Media Reader\shwicon2k.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
C:\Program Files\Common Files\AOL\ACS\AOLDial.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmon.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Common Files\AOL\1173034338\ee\AOLSoftware.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
C:\WINDOWS\system32\wuauclt.exe
C:\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.nytimes.com/
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\Userinit.exe
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [SunKist] C:\Program Files\Digital Media Reader\shwicon2k.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [Lexmark X1100 Series] "C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe"
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [AOLDialer] C:\Program Files\Common Files\AOL\ACS\AOLDial.exe
O4 - HKLM\..\Run: [ISUSPM Startup] C:\PROGRA~1\COMMON~1\INSTAL~1\UPDATE~1\ISUSPM.exe -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [HostManager] C:\Program Files\Common Files\AOL\1173034338\ee\AOLSoftware.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {08BEF711-06DA-48B2-9534-802ECAA2E4F9} (PlxInstall Class) - https://www.plaxo.com/down/latest/PlaxoInstall.cab
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: AOL Connectivity Service (AOL ACS) - AOL LLC - C:\PROGRA~1\COMMON~1\AOL\ACS\AOLacsd.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE

============

It looks like the tool worked. I'll return the laptop to the client, and see if he has any other problems in the next week or so.

Just one note on your instructions: the version of Gromozon on this machine appears to actively block the PrevxFixGrom.exe tool, in much the same way that it keeps RootKitRevealer from running. It also blocked access to the prevx.com website. I went to that site (http://www.prevx.com/gromozon.asp) using a different machine, and downloaded the removal tool, which Prevx apparently now names with random characters, to prevent this sort of blocking. You may want to amend your instructions to point to the Prevx site for the randomly named executeable.

(Oh, there's a corporate firewall, as well as a router appliance at home. That's why I haven't turned on the personal firewall.)

Thanks again!

Edited by chengjih, 05 March 2007 - 12:47 PM.


#5 htv8

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Posted 06 March 2007 - 03:48 PM

Hello chengjih. As the Gromozon rootkit is constantly being updated to beat the Prevx removal tool, I want to do some other checks and scans to make sure the Gromozon rootkit is gone. So we are not quite done yet!

Using both a hardware firewall to protect your network and a personal firewall that further protects your computer will add an extra level of security as well as provide you with the greater functionality found in personal firewalls. If you have disabled your firewall, I recommend that you re-enable it. If you do not have a firewall installed, I recommend downloading and installing one of the good (and free) products I mentioned in my previous post.

Please print out or copy this page to Notepad. This will be useful as there is a possibility some of the instructions will need to be carried out where internet access is not available. A print out of the instructions would be a good reference to make sure you don't get lost. You may also like to save these instructions in Word/Notepad to the Desktop where they can be easily found for the same reasons as above.
Also make sure to work through the fixes in the exact order in which they are mentioned below and do not miss any steps out. If you have any queries about the process or just general questions, ask your question(s) before proceeding with the fixes.


Step #1: AVG Anti-Spyware scan
Please download AVG Anti-Spyware 7.5 from the link below and save it to your Desktop.
Download AVG Anti-Spyware 7.5

Once downloaded, locate the icon on your Desktop and double-click on it to launch the setup program. Follow the on-screen instructions to install AVG Anti-Spyware.

Before running AVG Anti-Spyware, it is mandatory that you update its definition files. Follow these instructions to update and configure the program:
1. Start AVG Anti-Spyware.
2. Click the Update icon at the top of the screen. On the newly presented screen, click the button labelled "Start Update". The update process will start.
3. Once the update has completed, select the Scanner icon at the top of the screen, followed by clicking the Settings tab.
4. In the newly presented screen, click on the link named "Recommended actions" and then select the Quarantine option.
5. Under Reports, select the radio button labelled "Automatically generate report after every scan". Unselect the checkbox labelled "Only if threats were found".
6. Close AVG Anti-Spyware 7.5.

Now reboot your computer into Safe Mode. Restart your computer and gently tap the F8 key repeatedly on your keyboard while starting up until you are presented with a new menu in which you can select the option for Safe Mode using the arrow keys on your keyboard.
For more information on how to boot your computer into Safe Mode, see this reference: How to start Windows into Safe Mode.

When in Safe Mode, please follow these instructions to run AVG Anti-Spyware:
1. Close all windows so that you have nothing open and lauch AVG Anti-Spyware by double-clicking the icon on your Desktop.
2. Click the Scanner icon at the top of the screen and select the Scan tab.
3. Click on the "Complete System Scan" icon and AVG Anti-Spyware will begin the scanning process. Be patient as this may take some time.
IMPORTANT: Do not open any other windows or programs while AVG Anti-Spyware is scanning, it may interfere with the scanning proccess.
4. When the scan has finished, AVG Anti-Spyware will list any infections found on the left-hand side. It should automatically set the recommended action to Quarantine.
5. Click the Apply all actions button. AVG Anti-Spyware will display "All actions have been applied" on the right-hand side.
6. Click on the button labelled "Save Report", followed by pressing the "Save Report As" button. This will create a text file. Make sure you know where to find this file again.
7. Close AVG Anti-Spyware.
8. Reboot your computer to boot back into normal mode and post the entire contents of the saved text file in your next reply.

Step #2: GMER scan
Please download GMER from the link below.
Download GMER

Once download, unzip GMER to the Desktop. Open the program and click on the Rootkit tab. Make sure all the boxes on the right of the screen are checked, EXCEPT for the checkbox labelled "Show all".
Click on Scan and when the scan has run, click Copy and paste the results (if any) here as a reply.

Step #3: dumpwin.zip
Please download dumpwin.zip by clicking the download link below and save it to your Desktop.
Download dumpwin.zip

Once downloaded, extract the file by right-clicking on it and selecting Extract All.... Then keep pressing the Next button till you see the Finished button. Now click on the Finished button.

A folder should have opened. Now double-click on the dumpwin folder and then double-click on the dumpwin.bat file. When it has completed it will have opened a Notepad file. Copy/paste the entire contents of that file as a reply to this post.

Step #4: Registry Search
Launch Notepad. Copy the entire contents inside the CODE box below and past them into a new text file. Save it as Options.txt to your Desktop.
RegSearch Options File

[Search]
6EBA116E-AFA0-AFC9-64B3-9AA53F6D32B2
kcvjd1
lpt6
[Exclude]

[Options]
Filter=KVDLUI
Download Registry Search by clicking the download link below and extract it.
Download Registry Search (regsearch.zip)

Once extracted, double-click the regsearch.exe file to run the program. Click on the Import... button and select the Options.txt file you created above. Click OK and Registry Search will search the registry and report what it finds. Post the results here.

Step #5: HijackThis scan
Scan with HijackThis again and post a new HijackThis log.
If I have not posted back within 24 hours, feel free to send me a PM with your topic link.

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#6 htv8

htv8

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Posted 27 March 2007 - 03:25 PM

Due to the lack of feedback, this topic is closed.
To get it reopened, PM a staff member with the address of this thread. This applies to the original topic starter only. Everyone else with similar problems, please start a new topic. :thumbsup:
If I have not posted back within 24 hours, feel free to send me a PM with your topic link.

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