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Xp Malware Troubles


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#1 TTJ

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Posted 14 June 2008 - 02:36 AM

When I got on my computer this morning I found AVG had found a Vundo.T trojan horse overnight- in one of the system files (ljJAQHay.dll). So, I went and healed it, but then my computer went to the desktop background only- all the icons disappeared- and then it restarted. It was fine for a while, but now the programs I'm running keep crashing and if I go to My Computer it quite often ends in the desktop background taking over. I'm running XP, and using AVG 7.5 free with latest definitions as of this morning (AVG 8.0 wouldn't update- couldn't connect to server, so I changed back 2 days ago) and using Spybot Search and Destroy. I've managed to do a full computer scan with both, but to no avail. It's now also complaining of an error finding emmpxbum.dll.

Any help would be must appreciated,

Teej

Edited by TTJ, 14 June 2008 - 02:52 AM.


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#2 quietman7

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Posted 14 June 2008 - 07:39 AM

Please print out and follow the instructions for using "Vundofix". -- If using Windows Vista be sure to Run As Administrator.
  • Click the Scan for Vundo button.
  • Once it's done scanning, click the 'Fix Vundo' button.
  • After running VundoFix, a text file named vundofix.txt will automatically be saved to the root of the system drive, usually at C:\vundofix.txt.
  • Please copy & paste the contents of that text file into your next reply.
-- If you receive this error: "Run-time error '339': Component 'comdlg32.ocx' or one its dependencies not correctly registered: a file is missing or invalid", a new copy and instructions on where to put it can be found here.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on Download_mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself.
  • Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Acan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad and you may be prompted to restart your computer. (see Note below)
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Instructions with screenshots if needed.
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#3 TTJ

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Posted 14 June 2008 - 08:59 AM

Well VundoFix didn't detect anything when I scanned with it- but Malwarebytes' log was thus:

Malwarebytes' Anti-Malware 1.17
Database version: 854

14:55:15 14/06/2008
mbam-log-6-14-2008 (14-55-15).txt

Scan type: Quick Scan
Objects scanned: 264697
Time elapsed: 12 minute(s), 15 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 8
Registry Values Infected: 3
Registry Data Items Infected: 2
Folders Infected: 0
Files Infected: 9

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
C:\WINDOWS\system32\opnnolmj.dll (Trojan.Vundo) -> Unloaded module successfully.

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{9eceffc1-ad6f-4585-a08b-9a34df8129d8} (Trojan.Vundo) -> Delete on reboot.
HKEY_CLASSES_ROOT\CLSID\{9eceffc1-ad6f-4585-a08b-9a34df8129d8} (Trojan.Vundo) -> Delete on reboot.
HKEY_CLASSES_ROOT\CLSID\{7d7db869-3021-4cd2-af0a-b3cad75ece31} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7d7db869-3021-4cd2-af0a-b3cad75ece31} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\aoprndtws (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\Microsoft\rdfa (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\FCOVM (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RemoveRP (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks\{7d7db869-3021-4cd2-af0a-b3cad75ece31} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\68431bed (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BM6b702871 (Trojan.Agent) -> Delete on reboot.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA\Authentication Packages (Trojan.Vundo) -> Data: c:\windows\system32\opnnolmj -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\Authentication Packages (Trojan.Vundo) -> Data: c:\windows\system32\opnnolmj -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\system32\opnnolmj.dll (Trojan.Vundo) -> Delete on reboot.
C:\WINDOWS\system32\jmlonnpo.ini (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\jmlonnpo.ini2 (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\vswdxesj.dll (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\jsexdwsv.ini (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\Documents and Settings\Forster\Local Settings\Temporary Internet Files\Content.IE5\0VH3LXO0\kb456456[1] (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\Documents and Settings\Forster\Local Settings\Temporary Internet Files\Content.IE5\MWQFBJFJ\css4[1] (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\cakodkss.dll (Trojan.Agent) -> Delete on reboot.
C:\WINDOWS\system32\clkcnt.txt (Trojan.Vundo) -> Quarantined and deleted successfully.




Hopefully that will sort it out! If the problem persists I'll let you know- what about the emmpxbum.dll error (whenever I start up my computer after this morning it has complained that it's missing), could that be related?

Thanks for your help,

Teej

#4 quietman7

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Posted 14 June 2008 - 09:06 AM

Did you reboot the computer after using MBAM? If it encounters a file that is difficult to remove, you need to restart the computer so the malware can be fully removed. Failure to do so will prevent MBAM from removing all the malware. Your log indicates some files will be deleted on reboot. If you have not rebooted, make sure you do this. When done, rescan again with MBAM, click the Logs tab and copy/paste the contents of the new report in your next reply.

It's not unusual to receive such an error after using tools to remove malware infection.

A "Cannot find...", "Could not run...", "Error loading... or "specific module could not be found" message is usually related to malware that was set to run at startup but has been deleted. Windows is trying to load this file but cannot locate it since the file was mostly likely removed during an anti-virus or anti-malware scan. However, an associated orphaned registry entry remains and is telling Windows to load the file when you boot up. Since the file no longer exists, Windows will display an error message. You need to remove this registry entry so Windows stops searching for the file when it loads.

To resolve this, download Autoruns, search for the related entry and then delete it.
  • Create a new folder on your hard drive called AutoRuns (C:\AutoRuns) and extract (unzip) the file there. (click here if you're not sure how to do this.)
  • Open the folder and double-click on autoruns.exe to launch it.
  • Please be patient as it scans and populates the entries.
  • When done scanning, it will say Ready at the bottom.
  • Scroll through the list and look for a startup entry related to the file(s) in the error message.
  • Right-click on the entry and choose delete.
  • Reboot your computer and see if the startup error returns.
When done, please download ATF Cleaner by Atribune & save it to your desktop. alternate download link DO NOT use yet.
Please download and install SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here and unzip into the program's folder.)
  • Under the "Configuration and Preferences", click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.

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#5 TTJ

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Posted 14 June 2008 - 02:27 PM

Yes I rebooted and it deleted the files accordingly- I then checked again with MBAM and it found 3 or so more accounts which I deleted- noo reboot needed that time. I sorted the autorun- I deleted the DLL which the trojan was detected as in AVG initially- which couldn't be found.

Superantispyware took a while, but that was to be expected- it was worth it anyway. The log file is as follows:

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 06/14/2008 at 07:55 PM

Application Version : 4.15.1000

Core Rules Database Version : 3482
Trace Rules Database Version: 1473

Scan type : Complete Scan
Total Scan Time : 00:55:54

Memory items scanned : 173
Memory threats detected : 0
Registry items scanned : 5824
Registry threats detected : 0
File items scanned : 157496
File threats detected : 2

Trojan.Downloader-ConHook
C:\WINDOWS\SYSTEM32\AWTSS.EXE

Adware.Vundo Variant/Rel
C:\WINDOWS\SYSTEM32\MCRH.TMP



And that's it! I checked with MBAM after and it found one account of the vundo infecting one of my registry keys, but that was it.

Anything else I should be doing??

And thankyou very, very much,

Teej

#6 quietman7

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Posted 14 June 2008 - 03:07 PM

Rescan again with MBAM, click the Logs tab and copy/paste the contents of the new report in your next reply. Also let me knoww how your computer is running and if they are any more signs of infection.
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#7 TTJ

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Posted 15 June 2008 - 03:09 AM

Ok, the performance of my computer is much better- especially with regards to Internet Explorer, which was taking ages to load pages. The log reads thus:

Malwarebytes' Anti-Malware 1.17
Database version: 854

09:07:11 15/06/2008
mbam-log-6-15-2008 (09-07-11).txt

Scan type: Quick Scan
Objects scanned: 188062
Time elapsed: 6 minute(s), 16 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7d7db869-3021-4cd2-af0a-b3cad75ece31} (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)




Should I be deleting all the files in the MBAM quarantine?

#8 quietman7

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Posted 15 June 2008 - 07:18 AM

Yes, you can delete the quarantined items. Are there any more .dll errors? Is AVG alerting you to anything else?
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#9 TTJ

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Posted 15 June 2008 - 08:06 AM

AVG didn't spot anything after the initial Vundo- and upon deleting the autorun the DLL errors went. Everything seems to have been solved- but I'll scan with MBAM over the course of the next week, and if anything persists I'll post again- but thanks!

Teej

Edited by TTJ, 15 June 2008 - 08:06 AM.


#10 quietman7

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Posted 16 June 2008 - 06:52 AM

You're welcome.

If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok".
  • Click the "More Options" Tab.
  • Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.
Vista Users can refer to these links: Create a New Restore Point and Disk Cleanup.
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#11 TTJ

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Posted 18 June 2008 - 12:27 PM

Meh- every time I reboot the'same file keeps appearing- even if I'm not connected before or after the reboot. The log files show this:

Malwarebytes' Anti-Malware 1.17
Database version: 854

18:25:27 18/06/2008
mbam-log-6-18-2008 (18-25-27).txt

Scan type: Quick Scan
Objects scanned: 189187
Time elapsed: 10 minute(s), 6 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7d7db869-3021-4cd2-af0a-b3cad75ece31} (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


It's only one now- but it keeps coming back and I don't know if I should be worried

#12 quietman7

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Posted 18 June 2008 - 01:14 PM

It looks like its only a registry key that keeps returning but its better to investigate further to be sure nothing else is present. Before that can be done you will need you to create and post a hijackthis log.

Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log" and complete all the steps. There are instructions for downloading and running Deckard's System Scanner (DSS) which will create a hijackthis log for you, or automatically download and install the most current version of HijackThis if it's not already installed on your computer.

When you have done that, post your log in the HijackThis Logs and Malware Removal forum, NOT here, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.

Start a new topic, give it a relevant title and post your log along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. An expert will analyze your log and reply with instructions advising you what to fix. After doing this, we would appreciate if you post a link to your log back here so we know that your getting help from the HJT Team.

Please be patient. It may take a while to get a response because the HJT Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT "bump" your post or make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.
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