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Trojan infection installing false malware solutions- please help!


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10 replies to this topic

#1 deadward

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Posted 09 October 2010 - 02:55 PM

Hi there,

I got hit the other day by a trojan or rootkit that is installing those lovely "anti-malware" programs on my computer. The first was Antimalware Doctor, and today it was something like Antivirus 2010. I'm seeing out of place popups, some link redirection when I use Google search, and my Windows Themes service keeps failing and leaving me with a gray taskbar. My audio drivers have been jacked up somehow as well, and sometimes my media players such as VLC and iTunes will report that there is a problem with my audio mixer. Not sure where it came from. I guess I should be a little more careful with my choice of Megaupload links!

My first response was a full scan with AVG 8. No dice. A MBAM scan turned up ~20 infected objects, but didn't alleviate the software installs or the rundll reg key that keeps propagating in my HKLM\Windows\Run folder. Rootkit revealer didn't show anything that caught my eye, but I'm not exactly confident that I know what I'm looking for. CCleaner got rid of that startup key, but a new malware program popped up this morning. I also installed avast! Free, and scanned to no avail.

I'm running Windows XP SP3, and would greatly appreciate any advice or help that could be offered.

Edited by deadward, 09 October 2010 - 02:59 PM.


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#2 deadward

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Posted 09 October 2010 - 07:33 PM

Tried a scan with Kapersky's TDSSKiller. It found and removed a "malicious object", which I believe was an infected component of AVG. It hasn't alleviated any of the symptoms though, and the infection is now screwing with my antimalware solutions by killing their processes and renaming their executables when I try to run a scan. AVG hasn't crashed yet, and it's about 9 minutes into a full scan. Hopefully it turns something up.

I'm willing to try any suggestions you might have, because this is getting desperate.

#3 boopme

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Posted 09 October 2010 - 09:37 PM

Hello and welcome,give this a go...
A log file named TDSSKiller_version_date_time_log.txt (i.e. TDSSKiller.2.4.0.0_27.07.2010_09.o7.26_log.txt) will be created and saved to the root directory (usually Local Disk C:).
Copy and paste the contents of that file in your next reply.[/list]

Reboot into Safe Mode with Networking
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 with Networking using the arrow keys.
Then press enter on your keyboard to boot into Safe Mode
.


>>>> Download this file and doubleclick on it to run it. Allow the information to be merged with the registry.

RKill....

Download and Run RKill
  • Please download RKill by Grinler from one of the 4 links below and save it to your desktop.

    Link 1
    Link 2
    Link 3
    Link 4

  • Before we begin, you should disable your anti-malware softwares you have installed so they do not interfere RKill running as some anti-malware softwares detect RKill as malicious. Please refer to this page if you are not sure how.
  • Double-click on Rkill on your desktop to run it. (If you are using Windows Vista, please right-click on it and select Run As Administrator)
  • A black screen will appear and then disappear. Please do not worry, that is normal. This means that the tool has been successfully executed.
  • If nothing happens or if the tool does not run, please let me know in your next reply
Do not reboot your computer after running rkill as the malware programs will start again. Or if rebooting is required run it again.


If you continue having problems running rkill.com, you can download iExplore.exe or eXplorer.exe, which are renamed copies of rkill.com, and try them instead.



Next run Superantisypware (SAS):

Download and scan with SUPERAntiSpyware Free for Home Users
  • Double-click SUPERAntiSpyware.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. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the Scanning Control tab.
  • 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.
  • 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.
  • Click "Next" to start the scan. Please be patient while it scans your computer.
  • 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".
  • 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.
If you have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.


Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.

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

#4 deadward

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Posted 10 October 2010 - 08:05 PM

Thank you for extending the helping hand, boopme. I ran FixExe.reg and rkill.com while in SafeMode. FixExe merged successfully, and rkill ended the following process:

\\.\globalroot\Device\svchost.exe\svchost.exe

I tried to install SAS, and got an error from the installer along the lines of "Error copying files". After closing that dialog, the installer closed. I tried again after running rkill one more time (which terminated the same false svchost), and it completed the installation. I updated definitions and started a complete scan with SAS using the options you provided. Almost immediately it found 2 infected objects, reporting them on one line as "Trojan.Dropper/SVCHost.exe-False." About a minute into the scan, the SAS window closed without error or warning.

Where should I proceed from here?

#5 boopme

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Posted 10 October 2010 - 10:51 PM

Hello, OK update and run MBAM in Normal mode if you can.

Then an online scan.
Please perform a scan with Eset Online Antiivirus Scanner.
This scan requires Internet Explorer to work. Vista/Windows 7 users need to run Internet Explorer as Administrator.
To do this, right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run As Administrator from the context menu.
  • Click the green Posted Image button.
  • Read the End User License Agreement and check the box:
  • Check Posted Image.
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Check Remove found threats and Scan potentially unwanted applications. (If given the option, choose "Quarantine" instead of delete.)
  • Click the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer.
  • If offered the option to get information or buy software at any point, just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop as ESETScan.txt.
  • Push the Posted Image button, then Finish.
  • Copy and paste the contents of ESETScan.txt in your next reply.
Note: A log.txt file will also be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
If you did not save the ESETScan log, click Posted Image > Run..., then type or copy and paste everything in the code box below into the Open dialogue box:

C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and the scan results will open in Notepad.
  • Copy and paste the contents of log.txt in your next reply.
-- Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.

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


I am leaving now ,but will look back in the morning,
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

#6 deadward

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Posted 11 October 2010 - 12:47 AM

Thanks again, boopme. I was unable to scan with MBAM. The result was the same as with SAS: The program closed after about a minute of scan time, and then its executables were renamed, replaced, and somehow blocked from being run.

I used the Eset online scanner, and it found and quarantined 11 items. Here's the log:

C:\Documents and Settings\Edward\Application Data\444.bat Win32/Adware.FakeAntiSpy.G application cleaned by deleting - quarantined
C:\Documents and Settings\NetworkService\Application Data\Sun\Java\Deployment\cache\6.0\0\59b86c0-3238f606 multiple threats deleted - quarantined
C:\Program Files\illusion\SexyBeach 3 Plus\data\IluPak.exe probably a variant of Win32/Agent.JTZZYAF trojan cleaned by deleting - quarantined
C:\Program Files\illusion\SexyBeach3\data\IluPak.exe probably a variant of Win32/Agent.JTZZYAF trojan cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\2QURBGY1\dialog_alert[1] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\2QURBGY1\dialog_alert[2] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\2QURBGY1\script[1] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\IWTXB8PU\dialog_alert[1] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\IWTXB8PU\uninstall[1] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\TQM1BV5N\INSTALL[1] Win32/Adware.Antivirus2010 application cleaned by deleting - quarantined
C:\WINDOWS\system32\drivers\vbma46b5.sys a variant of Win32/Rootkit.Agent.NTT trojan cleaned by deleting - quarantined


Goddamn hentai games and their malicious redistributors. :thumbsup:

I will now try reinstalling and running MBAM and SAS to see if they behave any better than before. Hopefully they can remove the "Antivirus 2010" program that the trojan kept dropping, assuming that the latter has been fully removed.

#7 boopme

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Posted 11 October 2010 - 08:48 AM

Hi yes a good idea to rerun as I see we got the rootkit. Run RKill again before the scans. Just in case. Rkill shuts down after a reboot. ESET did a good job on AV 2010.
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

#8 deadward

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Posted 11 October 2010 - 04:13 PM

Unable to run both MBAM and SAS, behavior is the same as before. Rkill terminates the same process as before the Eset scan (\\.\globalroot\Device\svchost.exe\svchost.exe), and my AVG active scanner alerted me to a trojan but was unable to remove it. Antivirus 2010 is just as naggy and prevalent as before.

Not exactly making fast progress here. :/

#9 boopme

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Posted 11 October 2010 - 04:17 PM

Hi, this is mosy likely the rootkit causing the grief,\globalroot\.

We will need different tools to get it.

Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
If Gmer won't run,skip it and move on.
Let me know if that went well.
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

#10 deadward

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Posted 12 October 2010 - 08:30 PM

Thank you boopme. I posted my thread last night, still waiting for a response.

http://www.bleepingcomputer.com/forums/topic353167.html

#11 Orange Blossom

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Posted 12 October 2010 - 09:08 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 MRT 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 MRT 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 MRT 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 MRT 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 MRT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days 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:
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