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Virtumonde keeps rearing its ugly head in Explorer.exe and System32 folder


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#1 trishtehdish

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Posted 07 September 2010 - 02:34 PM

Hi, I'm going to try and be as succint and clear as possible about my issue. Normally I would not bother you wonderful forum gurus, but I can't do this alone.

I'm running XP Pro. V. 2002 with SP3 on a lenovo thinkpad. I was (before the problem started) running Spybot S&D and AVG Free. Like an idiot, I neglected to scan a file (file type=file) before opening, and KABOOM! Antimalware popped up and started giving me warnings, wouldn't let me run my browser, and when I went to open AVG, all windows closed so I hard-booted my laptop (the computer was totally unresponsive and I got scared). I restarted XP normally and Antimalware did its thing again, so I tried removing it through Control Panel, but couldn't find it.

I rebooted into safe mode and ran a command line scan with AVG, which removed some but not all of the "Trojan Horse" files... unfortunately I did not log this info, but I do recall some files being in my "Local Settings\Temp" folder, which were removed, and also it had hijacked explorer.exe, svchost.exe and rundll32.exe, which AVG couldn't fix. I didn't realize that at the time, so I tried restarting Windows normally, and downloaded Malwarebytes' Anti-Malware, ran some scans, and it found a couple of Trojan files but seemed to be able to get rid of them. I ran another scan with Spybot which found "Virtumonde". That's when I knew I was in trouble.


I looked up removal instructions for Virtumonde (that may have been from this forum, can't recall), and manually removed Antimalware Doctor files from C:\WINDOWS\System32 including "enemies-names.txt" and related Antimalware Doctor files within the same folder. I then used regedit to remove the following:
HK_CU\Software\Microsoft\Windows\Current Version\Uninstall\Antimalware Doctor
HK_CU\Software\Antimalware Doctor (and all entries within that folder)

THEN... Spybot S&D came up and told me a global entry had been added of "lseyerisub" (it's probably different between individual cases) as a System Startup entry. I believe it was in the directory C:\WINDOWS\afiyomeb.dll. I denied the change, but it kept coming back, so I told S&D to remember the decision. It continued to block this change in the background. My brother and I then searched for afiyomeb and found it in the WINDOWS directory but it could not be deleted. We scanned again with AVG and managed to delete a bunch of new rundll32 prefetch files AS WELL AS rundll32.exe itself (DURR). And then, of course, emptied the recycle bin. I also attempted, around this point, to run System Restore, but the dirty *&*$ had deleted all my restore points. Not that System Restore ever DID work on my computer, but STILL!

Finally, reluctantly, I downloaded and ran VUNDOFIX, which scanned and found nothing. I was also attempting to find rundll32.exe, (using Paretologic Data Recovery) but it had already been rewritten.


So I thought I was out of the woods, maybe. BUT... I went into Tools in S&D and under System Startup found a reg entry:
HK_LM:Run(Current System) with the Value "lseyerisub" under C:\WINDOWS\afiyomeb.dll. I tried searching the registry for this entry but couldn't find it so I got S&D to disable it and restarted the computer. The darn value came back after rebooting and I'm still getting random browser windows open. I tried deleting the reg entry (through Spybot) again, and am currently running scans with AVG, Malwarebytes' Anti-Malware AND S&D. As of yet, I have some infections found with AVG which are Trojan horse Adload_r.AKC files found at:
C:\WINDOWS\System32\svchost.exe (1328):\memory_001a0000
C:\WINDOWS\System32\svchost.exe (1328)
C:\WINDOWS\Explorer.EXE (1212):\memory_001a0000
C:\WINDOWS\Explorer.EXE (1212)

~AVG could not fix the infections, the objects are inaccessible. Malwarebytes didn't find anything malicious, nor did Spybot.

I FEEL SO SCREWED :thumbsup: > Right now I'm going to try downloading and using Virtumundobegone and see if that works. Let me know if anyone can provide any insight or suggest some better course of action. My brother had used VundoFix and successfully ridden his system of the bug, but I am not so fortunate. I'm assuming I'll need to upload a HJT file at some point.

AH Almost forgot. To bypass the fact that I had deleted rundll32.exe and Windows Security couldn't run without it, I copied the file from my brother's computer and just plopped it back into the System32 folder. That seems to have worked. I am considering reinstalling the OS (I have backed up all my data), but I will likely not be able to get a disc for XP from my maintenance providers (they aren't very.... giving).

*SIGH* Where should I go from here?


Sincerely,

DISH

Edited by trishtehdish, 07 September 2010 - 02:36 PM.


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#2 boopme

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Posted 07 September 2010 - 03:03 PM

Hello and welcome. I am moving this from XP to the Am I Infected forum.
OK,VundoFix is pretty much outdated so we have some better tools to use.

Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware (v1.46) and save it to your desktop.
Before you save it rename it to say zztoy.exe


alternate download link 1
alternate download link 2
MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • 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 definition 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

Next run ATF and SAS: If you cannot access Safe Mode,run in normal ,but let me know.

Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

From your regular user account..
Download Attribune's ATF Cleaner and then SUPERAntiSpyware , Free Home Version. Save both to desktop ..
DO NOT run yet.
Open SUPER from icon and install and Update it
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 yet.

Now reboot into Safe Mode: How to enter safe mode(XP)
Using the F8 Method
Restart your computer.
When the machine first starts again it will generally list some equipment that is installed in your machine, amount of memory, hard drives installed etc. At this point you should gently tap the F8 key repeatedly until you are presented with a Windows XP Advanced Options menu.
Select the option for Safe Mode using the arrow keys.
Then press enter on your keyboard to boot into 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 or Opera browser click that browser 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
.

NOW Scan with SUPER
Open from the desktop icon or the program Files list
On the left, make sure you check C:\Fixed Drive.
Perform a Complete scan. After scan,Verify they are all checked.
Click OK on the summary screen to quarantine all found items.
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.


Please ask any needed questions,post logs and Let us know how the PC is running now.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 trishtehdish

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Posted 07 September 2010 - 05:25 PM

Hey,

I followed your instructions, however SUPER does not give me any logs in the list. Here is the MBAM log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4564

Windows 5.1.2600 Service Pack 3
Internet Explorer 7.0.5730.13

9/7/2010 3:52:09 PM
mbam-log-2010-09-07 (15-52-09).txt

Scan type: Quick scan
Objects scanned: 150847
Time elapsed: 8 minute(s), 36 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
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:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\a5x3tq (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

I ran another scan with AVG and I'm still getting inaccessible Trojan horse Adload_r.AKC infections at C:\WINDOWS\System32\svchost.exe and C:\WINDOWS\Explorer.EXE. VERY TROUBLING - what now????

DISH

Edited by trishtehdish, 07 September 2010 - 05:42 PM.


#4 boopme

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Posted 07 September 2010 - 08:22 PM

Sometimes this happens with SAS it may appear after a reboot or in another account.

Let's do an online and a rootkit scan.

ESET
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the ESET Online Scanner button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Export to text file... to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Eset Smart Installer icon on your desktop.
  • Check the "YES, I accept the Terms of Use"
  • Click the Start button.
  • Accept any security warnings from your browser.
  • Check Scan archives
  • Push the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push "List of found threats"
  • Push "Export to text file", and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Push the "<<Back" button.
  • Push Finish
In your next reply, please include the following:
  • Eset Scan Log


NOTE: In some instances if no malware is found there will be no log produced.


Please download GMER from one of the following locations and save it to your desktop:
  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  • If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  • Now click the Scan button. If you see a rootkit warning window, click OK.
  • When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  • Click the Copy button and paste the results into your next reply.
  • Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.
-- If you encounter any problems, try running GMER in safe mode.
-- If GMER crashes or keeps resulting in a BSODs, uncheck Devices on the right side before scanning
.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 trishtehdish

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Posted 08 September 2010 - 12:50 PM

I'm not at my comp right now, but I'll do those steps at home later.

I did, however, run Combofix... and it seemed to wipe the trojan out of my system files (AVG showed no infections). However, I'm getting System Volume Info 'infections' each time I restart the computer including "restore" in the file name, so I'm assuming it's trying to get at my system restore points, or create a new one, or load an infected one?

So far, no more browser redirects. I may just switch to ubuntu. :thumbsup:

DISH

#6 boopme

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Posted 08 September 2010 - 01:17 PM

Well OK< note the blue texy above this forum. I am glad your PC survived ComboFix and is fixed.

For the sytem volume issue,this should take care of it.
Now 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 backed up, renamed and 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.
Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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