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I seem to have a trojan - vundo.JW


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6 replies to this topic

#1 valkyrian

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Posted 16 January 2010 - 10:01 AM

A month or two ago I picked up a virus that kept redirecting my browser to random websites. Nothing was showing up in AVG, but something was obviously going on. Someone from another forum was trying to help me, he had me run some things (malwarbites, hijackthis and combofix I think).

None of this helped, and instead my laptop ended up getting to the point where I couldn't use it at all. I would turn it on and tons of error windows would pop up infinitely and I wouldn't be able to close them or stop them from opening. So I ended up disconnecting from the internet and shutting off my computer until I had time to mess with it again.

Fast forward to today, I turn it on and I can actually use it. AVG updates, and picks up that I have a trojan, vundo.jw. It's located in four places:

C:\Program Files\AVG9\avgcsrvx.exe (828):\memory_00260000
C:\Program Files\AVG9\avgcsrvx.exe (828)
C:\Program Files\AVG9\avgcsrvx.exe (4288):\memory_00260000
C:\Program Files\AVG9\avgcsrvx (4288)

AVG says a reboot is required to fully remove it, but after the reboot the virus is still there. I also tried uninstalling and deleting AVG and the folder it's in, then reinstalling, but the virus was right back there again after the reinstall.

So yeah, now I'm out of ideas. Any help would be appreciated.

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#2 swagger

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Posted 17 January 2010 - 04:19 PM

Hello valkyrian and welcome to Bleeping Computer! :thumbsup:

My username is swagger and I'll be helping you. Sorry to hear about your malware-related issues but let's see if we can get your computer patched up. :flowers: Please read and follow the entire set of instructions below:

::MBAM::

Please download Malwarebytes Anti-Malware (v1.44) and save it to your desktop.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.

::GMER::

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
.

In your next reply, please include the following log(s):
  • MBAM
  • GMER
Regards,
swagger

#3 valkyrian

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Posted 19 January 2010 - 07:05 AM

Thanks for your help.

Here's the logs:

Malwarebytes' Anti-Malware 1.44
Database version: 3597
Windows 5.1.2600 Service Pack 2
Internet Explorer 6.0.2900.2180

1/18/2010 11:57:46 PM
mbam-log-2010-01-18 (23-57-46).txt

Scan type: Quick Scan
Objects scanned: 122503
Time elapsed: 5 minute(s), 34 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: 3

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SSHNAS (Trojan.Renos) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\AvScan (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\XML (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Handle (Malware.Trace) -> 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:\Documents and Settings\Katrina\Local Settings\Temporary Internet Files\Content.IE5\KTIJKLQR\update[1].exe (Trojan.Dropper) -> Quarantined and deleted successfully.
C:\WINDOWS\Tasks\{66BA574B-1E11-49b8-909C-8CC9E0E8E015}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\WINDOWS\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job (Trojan.Downloader) -> Quarantined and deleted successfully.

------------------------

GMER 1.0.15.15281 - http://www.gmer.net
Rootkit scan 2010-01-19 01:56:14
Windows 5.1.2600 Service Pack 2
Running: xofm9iu2.exe; Driver: C:\DOCUME~1\Katrina\LOCALS~1\Temp\pxlcypow.sys


---- System - GMER 1.0.15 ----

SSDT Lbd.sys (Boot Driver/Lavasoft AB) ZwCreateKey [0xBA0F887E]
SSDT Lbd.sys (Boot Driver/Lavasoft AB) ZwSetValueKey [0xBA0F8BFE]

---- Kernel code sections - GMER 1.0.15 ----

.rsrc C:\WINDOWS\system32\drivers\iaStor.sys entry point in ".rsrc" section [0xB9EEA024]

---- User code sections - GMER 1.0.15 ----

.text C:\WINDOWS\system32\svchost.exe[1116] ole32.dll!CoCreateInstance 774FFAC3 5 Bytes JMP 00F4000A

---- Devices - GMER 1.0.15 ----

Device -> \Driver\iaStor \Device\Harddisk0\DR0 89D7C369

---- Files - GMER 1.0.15 ----

File C:\WINDOWS\system32\drivers\iaStor.sys suspicious modification

---- EOF - GMER 1.0.15 ----


There's still no change with the redirects, I don't know if there was supposed to be yet or not.

#4 swagger

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Posted 19 January 2010 - 08:02 AM

Hello valkyrian,

With the information you have provided I believe you will need help from the malware removal team. I would like you to start a new thread HERE and include a link to this thread. Please make sure that you read the information about getting started before you start your thread.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient. Help is on the way!

Regards,
swagger

#5 valkyrian

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Posted 22 January 2010 - 06:27 AM

Thanks a ton for all your help so far. I posted a new thread over here.

#6 swagger

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Posted 22 January 2010 - 09:53 AM

Hey valkyrian,

No problem at all... Those folks will take good care of you. Just be patient, as there are a lot of people who need help and not so many people that can help. Good luck and take care! :thumbsup:

Regards,
swagger

#7 Orange Blossom

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Posted 22 January 2010 - 09:33 PM

Hello,

Now for the hard and frustrating part: waiting.

Now that you have posted a log, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY 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 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.

Please be patient. It may take several days, up to two weeks perhaps less, to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

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