Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

VirtuMonde infection & more ?


  • Please log in to reply
9 replies to this topic

#1 Tohan

Tohan

  • Members
  • 8 posts
  • OFFLINE
  •  
  • Local time:06:30 PM

Posted 22 October 2008 - 11:40 AM

Hi there,

I just got infected with VirtuMonde this morning. Spybot seemed to have get rid of various versions (after 2 or 3 scans) but it seems I still have a pb.
I got this tuvTkkiJ.dll in my /WINDOWS/system32 folder. I had a very hard time(KillBox ineffective) getting rid of it but it's gone now.
Still, I can't enable Windows Automatic Update, so I guess something's still wrong.

After running Spybot, I tried :
- SmitFraudFix (nothing found)
- DrWeb Cureit (both express and complete scan did not find anything)
- VundoFix (nothing found)
- VirtumundoBeGone (it identified the above mentioned .dll as potentially Virtumonde and sucessfully removed it)
- FixVundo (nothing found)

I ran accross the web to find any suggestion for my problem and found a thread in here where somebody had a very similar problem. The solving involved using OTscanit, but I have no clue how to use it (I downloaded also ComboFix, but did not dare to use it for the same reason)

BTW, I'm using XP Professional on a lenovo T60 laptop.


Any help would be greatly appreciated,
Thanks,

Tohan

Edited by Tohan, 22 October 2008 - 11:42 AM.


BC AdBot (Login to Remove)

 


#2 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 52,090 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:06:30 AM

Posted 22 October 2008 - 12:26 PM

Please note the message text in blue at the top of this forum.

You should not be using Combofix unless instructed to do so by a Malware Removal Expert who can interpret the logs. It is a powerful tool intended by its creator to be "used under the guidance and supervision of an expert", NOT for private use. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again. Please read Combofix's Disclaimer.

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 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 Scan" 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.
  • 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.
Note:
-- If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

-- MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes.

.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#3 Tohan

Tohan
  • Topic Starter

  • Members
  • 8 posts
  • OFFLINE
  •  
  • Local time:06:30 PM

Posted 23 October 2008 - 12:05 AM

Hi quietman7, and thank you for helping!

Actually, I have found another suspicious .dll (using Process Explorer) that was hooked by the lsass.exe process. I managed to delete this file and all references to it in the Windows registry. Later, I was able to restore Windows update, I then ran Spybot again, then did a full scan with my OfficeScan antivirus (which has been pretty helpless in the past few months) and everything was shiny according to those scans so I guessed I was safe... but not much so!

I did as instructed and ran Malwarebytes Anti-Malware and it found 4 more infected dlls, here's the log :

+-----
Malwarebytes' Anti-Malware 1.30
Database version: 1306
Windows 5.1.2600 Service Pack 3

23-Oct-08 11:56:46
mbam-log-2008-10-23 (11-56-46).txt

Scan type: Quick Scan
Objects scanned: 48034
Time elapsed: 6 minute(s), 3 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 4
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 4

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MS Juan (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\contim (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MS Track System (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RemoveRP (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:
C:\WINDOWS\system32\npkalc.dll (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\toqbwfse.dll (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\juguysll.dll (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\qoMeDTlL.dll (Trojan.Vundo) -> Quarantined and deleted successfully.
+-----

Do you think it's gone for good now ?

Again, thanks very much for your help.
Tohan

#4 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 52,090 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:06:30 AM

Posted 23 October 2008 - 06:45 AM

There are no shortcuts or guarantees when it comes to malware removal. Sometimes it takes several efforts with different or the same tools to do the job. Even then, some infections can be difficult to remove because of their morphing characteristics which allows the malware to regenerate itself.

Rescan again with MBAM (Quick Scan) in normal mode and check all items found for removal. Don't forgot to reboot afterwards. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. When done, click the Logs tab and copy/paste the contents of the new report in your next reply.

Lets do another scan to see if we find anything else that MBAM may have missed.

Please download ATF Cleaner by Atribune & save it to your desktop. DO NOT use yet.
alternate download link

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.)
  • In the Main Menu, 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.

.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#5 Tohan

Tohan
  • Topic Starter

  • Members
  • 8 posts
  • OFFLINE
  •  
  • Local time:06:30 PM

Posted 24 October 2008 - 03:01 AM

Hi,

Ok, so I did as instructed (I first ran a scan of mbam which didn't find anything, but I realized I didn't updated it, so I did, ran it again, and it found some registry keys as in the log below)

+-----
Malwarebytes' Anti-Malware 1.30
Database version: 1311
Windows 5.1.2600 Service Pack 3

24-Oct-08 13:05:40
mbam-log-2008-10-24 (13-05-40).txt

Scan type: Quick Scan
Objects scanned: 48171
Time elapsed: 5 minute(s), 7 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 2
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_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{f10587e9-0e47-4cbe-abcd-7dd20b8622ff} (Trojan.Zlob) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\rdfa (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)
+-----

I then followed your instructions, and ran SUPERAntiSpyware in Safe Mode after having run ATF-Cleaner, it didn't find anything, here's the log :

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

Generated 10/24/2008 at 02:15 PM

Application Version : 4.21.1004

Core Rules Database Version : 3608
Trace Rules Database Version: 1594

Scan type : Complete Scan
Total Scan Time : 00:50:00

Memory items scanned : 163
Memory threats detected : 0
Registry items scanned : 5802
Registry threats detected : 0
File items scanned : 104207
File threats detected : 0
+-----

Again, thanks for your help,

Tohan

#6 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 52,090 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:06:30 AM

Posted 24 October 2008 - 05:55 AM

How is your computer running now? Any more reports/signs of infection?
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#7 Tohan

Tohan
  • Topic Starter

  • Members
  • 8 posts
  • OFFLINE
  •  
  • Local time:06:30 PM

Posted 24 October 2008 - 06:27 AM

Everything's looks ok, no problems so far.
Automatic Windows Update is still running all right and I don't get any suspicious messages nor annoying popups even with Internet Explorer.

Thanks very much for your support.

Tohan

#8 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 52,090 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:06:30 AM

Posted 24 October 2008 - 06:35 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". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Tips to protect yourself against malware and reduce the potential for re-infection:
• "Simple and easy ways to keep your computer safe".
• "How did I get infected?, With steps so it does not happen again!".
• "Hardening Windows Security - Part 1 & Part 2".
• "IE Recommended Minimal Security Settings" - "How to Secure Your Web Browser".

• Avoid gaming sites, underground web pages, pirated software sites, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to a smörgåsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Many malicious worms and Trojans spread across P2P file sharing networks, gaming and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and Flash ads that install viruses, Trojans and spyware. Ads are a target for hackers because they offer a stealthy way to distribute malware to a wide range of Internet users. The best way to reduce the risk of infection is to avoid these types of web sites and not use any P2P applications. Read P2P Software User Advisories and Risks of File-Sharing Technology.
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#9 Tohan

Tohan
  • Topic Starter

  • Members
  • 8 posts
  • OFFLINE
  •  
  • Local time:06:30 PM

Posted 24 October 2008 - 10:56 AM

Thanks for all the advices and again, thanks for your great help !
I'll try to stay out of trouble.

Best regards,
Tohan

#10 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 52,090 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:06:30 AM

Posted 24 October 2008 - 02:00 PM

Safe surfing and have a malware free day. :thumbsup:
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users