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Infected with TDSS / Other Various Trojans...Help Please!


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#1 SJH-Tampa

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Posted 25 July 2009 - 07:43 AM

Hello,

I became infected 2 days ago, was running Symantec auto-protect at the time, but unfortunately it did not stop it. My Ad-Aware had also not been updated in a while. This is a Windows XP-Pro, SP2 system. I have taken the following steps thus far:

1. Got the new registered version of Ad-Aware Millennium and ran a full scan. Came back with several TDSS issues, most in UAC*.* files, and a downloader.fraudload alert. Claims to have successfully quarantined them.

2. Doanloaded and registered Max-Secure Spyware Detector, ran a full scan, it found a few others this time, mainly "downloader.banload". Again, claims to have cleaned them.

3. Downloaded Malwarebytes' Anti-Malware and had to rename both the install exe file and rename the program exe file for it to run. Once it ran, it found a few more issues - generic.rootkit, trojan.fakealert, trojan.agent, trojan.tdss, and rootkit.trace. Again, claims to have cleaned them.

4. Removed the hard drive and slaved it to another CPU. Went through DOS into the System32 directory and deleted everything UAC*.*. Did the same in the drivers sub-directory.

5. Downloaded and installed/ran Sophos Anti-Rootkit. It ran and did not find much.

I am fresh out of ideas, each time I run one of the programs listed above it finds new stuff, each program finding different things. Please let me know what to try next. I am happy to post a logfile from any of the software listed above, or try a new one.

Thank you!

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#2 boopme

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Posted 25 July 2009 - 08:51 AM

Hello and welcome please run these next. If you have Spybot installed temporarily disable it.
Next run ATF:
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download ATF Cleaner by Atribune & save it to your desktop.
  • 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.

Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware 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.
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 SJH-Tampa

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Posted 25 July 2009 - 09:30 AM

Thank You - I will give the ATF followed by Anti-Malware a try and report back the results.

#4 SJH-Tampa

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Posted 25 July 2009 - 10:03 AM

Hello boopme -

I completed the two tasks, below is a cut and paste of the MBAM log. The only issue that occurred during the scan, was while scanning of the registry, another window tried to open, the pointer went to an hourglass, another window started on the taskbar with no name or logo to it, then the screen went black and came back about 30 seconds later. When it came back, the window that had appeared on the taskbar was gone and MBAM was still scanning.

Here is the log:

Malwarebytes' Anti-Malware 1.39
Database version: 2421
Windows 5.1.2600 Service Pack 2

7/25/2009 10:58:28 AM
mbam-log-2009-07-25 (10-58-28).txt

Scan type: Quick Scan
Objects scanned: 105466
Time elapsed: 9 minute(s), 31 second(s)

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

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)


Any next steps?

Thanks.

#5 boopme

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Posted 25 July 2009 - 04:00 PM

Ok,your version was a little old and I want to be sure you are clean.

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.
After scan click Remove Selected, Post new scan log and Reboot into normal mode.

How is it 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

#6 SJH-Tampa

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Posted 25 July 2009 - 05:30 PM

Boopme -

I just updated MBAM and ran it again, unfortunately it found (4) infected - (2) Files and (2) Keys. Cannot seem to kick the TDSS and Downloader trojans. It required a reboot after scanning, which I did right away.

Below is my logfile for you:

Malwarebytes' Anti-Malware 1.39
Database version: 2501
Windows 5.1.2600 Service Pack 2

7/25/2009 6:26:08 PM
MBAM Log Sat Afternoon.txt

Scan type: Quick Scan
Objects scanned: 107386
Time elapsed: 8 minute(s), 27 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: 2

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\Typelib\{e24211b3-a78a-c6a9-d317-70979ace5058} (Trojan.FakeAlert) -> No action taken.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{500bca15-57a7-4eaf-8143-8c619470b13d} (Trojan.FakeAlert) -> No action taken.

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\drivers\vsfocewkxjklfh.sys (Trojan.TDSS) -> No action taken.
C:\WINDOWS\Tasks\{BB65B0FB-5712-401b-B616-E69AC55E2757}.job (Trojan.Downloader) -> No action taken.

Please advise of next steps. Thank you.

#7 boopme

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Posted 25 July 2009 - 07:23 PM

Ok since this TDDS backdoor is so deep and active I need to tell you this before we go on.
One or more of the identified infections is a backdoor trojan.

This allows hackers to remotely control your computer, steal critical system information and download and execute files.

I would counsel you to disconnect this PC from the Internet immediately. If you do any banking or other financial transactions on the PC or if it should contain any other sensitive information, please get to a known clean computer and change all passwords where applicable, and it would be wise to contact those same financial institutions to apprise them of your situation.

Though the trojan has been identified and can be killed, because of it's backdoor functionality, your PC is very likely compromised and there is no way to be sure your computer can ever again be trusted. Many experts in the security community believe that once infected with this type of trojan, the best course of action would be a reformat and reinstall of the OS. Please read these for more information:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
When Should I Format, How Should I Reinstall

We can still clean this machine but I can't guarantee that it will be 100% secure afterwards. Let me know what you decide to do.
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 SJH-Tampa

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Posted 25 July 2009 - 08:39 PM

Boopme -

After the infection popped up 2 days ago, I have been unplugged from the NET, other than when I updated MBAM...I have also NOT used the computer for ANYTHING, email, banking, nothing. I downloaded all files we used to clean it with a second CPU and moved it to the infected computer via jump drive. Nor do I have anything on there that is a list of passwords, etc. But, it is very wise advice you have given me.

Other than having to re-do my i-tunes from my ipod, I have really nothing else on there that I do not already have backed up on a jump drive. In light of this, and the trust issues of the computer going forward, it sounds like a total re-format and re-install of XP would be the best option.

Do you have the same thought as I do? I just need to find the darn DVD...

How would we go about cleaning it? Is it even worth it? Thanks,

#9 boopme

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Posted 25 July 2009 - 09:35 PM

Your decision as to what action to take should be made by reading and asking yourself the questions presented in the "When should I re-format?" and What Do I Do? links I previously provided. As I already said, in some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore removes everything and is the safest action but I cannot make that decision for you.

Not an unwise decision to make. The one I would make with mine. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore removes everything and is the safest action but I cannot make that decision for you.

Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.

The best proceedure is a low level format. This completely wipes the drive. Then reinstall the OS.
Use the free version of Active@ KillDisk.
Or Darik's Boot And Nuke

The best sources of Information on this are
Reformatting Windows XP
Michael Stevens Tech

Of course also feel free to ask anything on this in the XP forum. They'd be glad to help.


Two guidelines/rules when backing up

1) Backup all your important data files, pictures, music, work etc... and save it onto an external hard-drive. These files usually include .doc, .txt, .mp3, .jpg etc...
2) Do not backup any executables files or any window files. These include .exe/.scr/.htm/.html/.xml/.zip/.rar files as they may contain traces of malware. Also, .html or .htm files that are webpages should also be avoided.

Download Belarc Advisor - builds a detailed profile of your installed software and hardware, including Microsoft Hotfixes, and displays the results in your Web browser.
Run it and then print out the results, they may be handy.


Sorry as to the Cleaning question .. next we would run...
Next run ATF and SAS:

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.


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.
After scan click Remove Selected, Post new scan log and Reboot into normal mode.


Please ask any needed questions,post 2 logs and Let us know how the PC is running now.

Edited by boopme, 25 July 2009 - 09:40 PM.

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 SJH-Tampa

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Posted 26 July 2009 - 11:22 AM

Boopme -

I think I will go ahead and just format the thing and re-install XP. Seems to be the safest route, no point in always worying about security.

A couple of questions for you before I go ahead with that-

1. After I get things back up, which anti-spyware/anti virus do the experts on this blog like? to use I have AdAware and MaxSecure on the infected PC, so I would need to re-download the install files for the new system - would I need to buy a registration again too? Please let me know what you would suggest I run on the new, clean machine.

2. Other than some .doc and .jpg files that I want to get off of it before the wipe, I would like to use iTunes 8 to make an auto DVD backup of my library. Would you consider this process safe on the infected machine?

3. Whatever I take off of the infected system, I assume I should scan the files while they are on DVD before moving them on to the new system. Which scanning software would you recommend for this? (If different from #1 above).

Thanks again for all your help this weekend. Great forum!!

#11 boopme

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Posted 26 July 2009 - 04:29 PM

For question 1 .. you just need to reinstall and enter a key and/or activate it.. You may find such keys in the Belarc log. Or use Magical Jelly Bean Keyfinder v2.0.1
I also like AntiVir antivirus.

Question 2 should be fine as the extentions are OK .. You can also scan the DVD before reinstalling..
Question 3 ..see answers 2 & 3
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

#12 rpra

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Posted 27 July 2009 - 06:11 AM

Spyware Detector has helped millions of customers. Their tech support and 24x7 customer support is always available thorugh email, chat or remote support. All they ask you is click on the Export log button and send report and within 24 hours, they release updates which will fix issues. Spyware Detector also volunteers to offer free help to anyone with any spyware related issues to post on their forum forum.maxpcsecure.com and customers will be offered full issue resolution. This is genuine sand very speedy support any other company can offer. They have expertise in spyware removal.




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