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System Tool Virus


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6 replies to this topic

#1 Eima

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Posted 05 March 2011 - 08:24 PM

Attached File  dds.zip   3.55KB   1 downloadsMy in-laws computer seems to have a virus that has permanently placed a large warning on their desktop and is limiting what I can do to try and scan it to get rid of it. I've tried a couple of things including STOPzilla it allowed me to download it but when I try to run it it gives me another message that what I'm trying to run is infected. Warnings are constantly popping up in the corner stating that the computer is affected - it runs a "scan" and if you click on anything it takes you to a screen that tries to get you to buy "System Tool" antivirus products. and occasionally it totally shuts the computer down and restarts it. I'm trying to avoid wiping the computer totally, but if that's what needs to be done, I guess we'll have to do it... help!

Edited by Eima, 05 March 2011 - 10:02 PM.


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#2 fireman4it

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Posted 05 March 2011 - 10:15 PM

Hello Eima ,
  • Welcome to Bleeping Computer.
  • My name is fireman4it and I will be helping you with your Malware problem.

    Please take note of some guidelines for this fix:
  • Refrain from making any changes to your computer including installing/uninstall programs, deleting files, modifying the registry, and running scanners or tools.
  • If you do not understand any step(s) provided, please do not hesitate to ask before continuing.
  • Even if things appear to be better, it might not mean we are finished. Please continue to follow my instructions and reply back until I give you the "all clean".
  • Finally, please reply using the Posted Image button in the lower right hand corner of your screen. Do not start a new topic. The logs that you post should be pasted directly into the reply, unless they do not fit into the post.


We will boot into safemode and use these tools.


Now reboot into Safe Mode.
This can be done tapping the F8 key as soon as you start your computer
You will be brought to a menu where you can choose to boot into safe mode.
Make sure you choose the option Safemode with Networking.
Please see here for additional details.


Once in Safemode run both tools.

1.
Please download the TDSS Rootkit Removing Tool (TDSSKiller.exe) and save it to your Desktop. <-Important!!!
Be sure to download TDSSKiller.exe (v2.4.0.0) from Kaspersky's website and not TDSSKiller.zip which appears to be an older version 2.3.2.2 of the tool.
  • Double-click on TDSSKiller.exe to run the tool for known TDSS variants.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • If TDSSKiller does not run, try renaming it.
  • To do this, right-click on TDSSKiller.exe, select Rename and give it a random name with the .com file extension (i.e. 123abc.com). If you do not see the file extension, please refer to How to change the file extension.
  • Click the Start Scan button.
  • Do not use the computer during the scan
  • If the scan completes with nothing found, click Close to exit.
  • If malicious objects are found, they will show in the Scan results - Select action for found objects and offer three options.
  • Ensure Cure (default) is selected, then click Continue > Reboot now to finish the cleaning process.
  • 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.

3.
Install Recovery Console and Run ComboFix

This tool is not a toy. If used the wrong way you could trash your computer. Please use only under direction of a Helper. If you decide to do so anyway, please do not blame me or ComboFix.

Download Combofix from any of the links below, and save it to your desktop.

Link 1
Link 2
  • Close/disable all anti-virus and anti-malware programs so they do not interfere with the running of ComboFix. Refer to this page if you are not sure how.
  • Close any open windows, including this one.
  • Double click on ComboFix.exe & follow the prompts.
  • As part of it's process, ComboFix will check to see if the Microsoft Windows Recovery Console is installed. With malware infections being as they are today, it's strongly recommended to have this pre-installed on your machine before doing any malware removal. It will allow you to boot up into a special recovery/repair mode that will allow us to more easily help you should your computer have a problem after an attempted removal of malware.
  • If you did not have it installed, you will see the prompt below. Choose YES.
  • Posted Image
  • Follow the prompts to allow ComboFix to download and install the Microsoft Windows Recovery Console, and when prompted, agree to the End-User License Agreement to install the Microsoft Windows Recovery Console.
**Please note: If the Microsoft Windows Recovery Console is already installed, ComboFix will continue it's malware removal procedures.

Note:The Windows Recovery Console will allow you to boot up into a special recovery (repair) mode. This allows us to more easily help you
should your computer have a problem after an attempted removal of malware. It is a simple procedure that will only take a few moments of your time.

  • Once the Microsoft Windows Recovery Console is installed using ComboFix, you should see the following message:

    Posted Image
  • Click on Yes, to continue scanning for malware.
  • When finished, it will produce a report for you. Please post the contents of the log (C:\ComboFix.txt).
Leave your computer alone while ComboFix is running.
ComboFix will restart your computer if malware is found; allow it to do so.


Note: Please Do NOT mouseclick combofix's window while its running because it may cause it to stall.


Things to include in your next reply::
TDSSkiller log
Combofix.txt
How is the machine running now?

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

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#3 Eima

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Posted 05 March 2011 - 11:27 PM

Things seem to be working much better. so far so good anyway - no more warning on the desktop and no more pop-up warningsAttached File  TDSSKiller.2.4.20.0_05.03.2011_22.50.51_log.txt   62.13KB   2 downloadsAttached File  log.txt   20.99KB   3 downloads

#4 fireman4it

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Posted 06 March 2011 - 01:38 AM

Hello,

Things look pretty good. A little cleanup and checking just to be sure.


1.
Ask Toolbar is considered as foistware instead of malware since it is installed without users approval but doesn't spy or do anything "bad". This changed from what we know as stated in the following Articles:

http://www.benedelman.org/spyware/ask-toolbars/
http://vil.nai.com/vil/content/v_185490.htm


I suggest you remove the program now. Click on start > run > and then paste the following into the "open" field: appwiz.cpl and press OK. From within Add or Remove Programs uninstall the following if they exist: Ask Toolbar.

2.
We need to run a CFScript.

1. Close any open browsers.

2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

3. Open notepad and copy/paste the text in the codebox below into it:

Killall::

Folder::
c:\progra~2\WEBFET~2
c:\program files (x86)\WebfettiIE

Registry::
[-HKEY_LOCAL_MACHINE\Wow6432Node\~\Browser Helper Objects\{a504d73b-32d5-4b53-9dfc-0891be7653f0}]
[-HKEY_LOCAL_MACHINE\Wow6432Node\~\Browser Helper Objects\{d826715f-a629-4613-a641-5ca18e8b2f7a}]
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks]
"{d664042c-ca70-48b6-afc9-24a4212d5e43}"=-
[-HKEY_CLASSES_ROOT\clsid\{d664042c-ca70-48b6-afc9-24a4212d5e43}]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar]
"{94fc3fb2-3e5c-4b8f-aaee-17090ce800bc}"=-
[-HKEY_CLASSES_ROOT\clsid\{94fc3fb2-3e5c-4b8f-aaee-17090ce800bc}]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run]
"WebfettiIE Browser Plugin Loader"=-
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"combofix"=-

Driver::
WebfettiIEService


Save this as CFScript.txt, in the same location as ComboFix.exe


Posted Image

Refering to the picture above, drag CFScript into ComboFix.exe

When finished, it shall produce a log for you at C:\ComboFix.txt which I will require in your next reply.

3.
Please download Malwarebytes' Anti-Malware (v1.50) and save it to your desktop.
Download Link 1
Download Link 2Malwarebytes' 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 and double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to this Guide.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • Malwarebytes 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 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.
  • Under the Scanner tab, make sure the "Perform Quick Scan" option is selected.
  • Click on the Scan button.
  • When 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, then click the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked and then 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.
  • 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 the database version and your operating system.
  • Exit Malwarebytes' when done.
Note: If Malwarebytes' encounters a file that is difficult to remove, you will be asked to reboot your computer so it can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally will prevent Malwarebytes' from removing all the malware.

3.
ESET Online Scanner:

Note: You can use either Internet Explorer or Mozilla FireFox for this scan. You will however need to disable your current installed Anti-Virus, how to do so can be read here.

Vista users: You will need to to right-click on the either the IE or FF icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run as Administrator from the context menu.

  • Please go here then click on: Posted Image

    Note: If using Mozilla Firefox you will need to download esetsmartinstaller_enu.exe when prompted then double click on it to install.
    All of the below instructions are compatible with either Internet Explorer or Mozilla FireFox.

  • Select the option YES, I accept the Terms of Use then click on: Posted Image
  • When prompted allow the Add-On/Active X to install.
  • Make sure that the option Remove found threats is NOT checked, and the option Scan archives is checked.
  • Now click on Advanced Settings and select the following:
    • Scan for potentially unwanted applications
    • Scan for potentially unsafe applications
    • Enable Anti-Stealth Technology
  • Now click on: Posted Image
  • The virus signature database... will begin to download. Be patient this make take some time depending on the speed of your Internet Connection.
  • When completed the Online Scan will begin automatically.
  • Do not touch either the Mouse or keyboard during the scan otherwise it may stall.
  • When completed select Uninstall application on close if you so wish, make sure you copy the logfile first!
  • Now click on: Posted Image
  • Use notepad to open the logfile located at C:\Program Files\ESET\EsetOnlineScanner\log.txt.
  • Copy and paste that log as a reply to this topic.
Note: Do not forget to re-enable your Anti-Virus application after running the above scan!


Things to include in your next reply::
Combofix.txt
MBAM log
Eset log
How is your machine running now?

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
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#5 Eima

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Posted 06 March 2011 - 03:28 PM

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 5975

Windows 6.1.7600
Internet Explorer 8.0.7600.16385

3/6/2011 3:26:47 PM
mbam-log-2011-03-06 (15-26-47).txt

Scan type: Quick scan
Objects scanned: 172409
Time elapsed: 2 minute(s), 10 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 8
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:
HKEY_CLASSES_ROOT\CLSID\{1E0DE227-5CE4-4ea3-AB0C-8B03E1AA76BC} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{D518921A-4A03-425E-9873-B9A71756821E} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{CF54BE1C-9359-4395-8533-1657CF209CFE} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{E47CAEE0-DEEA-464A-9326-3F2801535A4D} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{3E1656ED-F60E-4597-B6AA-B6A58E171495} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{F42228FB-E84E-479E-B922-FBBD096E792C} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{6E74766C-4D93-4CC0-96D1-47B8E07FF9CA} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\RunDll32Policy\f3ScrCtr.dll (Adware.MyWebSearch) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media\WMSDK\Sources\f3PopularScreensavers (Adware.MyWebSearch) -> Value: f3PopularScreensavers -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:Attached File  ComboFix Log 2.zip   5.29KB   1 downloads
(No malicious items detected)

Files Infected:
(No malicious items detected)


I didn't see where teh EST Scan created a log file - the computer still seems to be running fine.

Edited by Eima, 06 March 2011 - 04:38 PM.


#6 fireman4it

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Posted 06 March 2011 - 04:45 PM

Hello, Eima .
Congratulations! You now appear clean! :cool:


Uninstall Combofix
  • Make sure that Combofix.exe that you downloaded is on your Desktop but Do not run it!
    o *If it is not on your Desktop, the below will not work.
  • Click on Posted Image then Run....
  • Now copy & paste the green bolded text in the run-box and click OK.

    ComboFix /Uninstall

    Posted Image

    <Notice the space between the "x" and "/".> <--- It needs to be there
    Windows Vista users: Press the Windows Key + R to bring the Run... Command and then from there you can add in the Combofix /Uninstall

  • Please advise if this step is missed for any reason as it performs some important actions:
    "This will uninstall Combofix, delete its related folders and files, reset your clock settings, hide file extensions, hide the system/hidden files and resets System Restore again.
    It also makes a clean Restore Point and flashes all the old restore points in order to prevent possible reinfection from an old one through system restore".







Are things running okay? Do you have any more questions?

System Still Slow?
You may wish to try StartupLite. Simply download this tool to your desktop and run it. It will explain any optional auto-start programs on your system, and offer the option to stop these programs from starting at startup. This will result in fewer programs running when you boot your system, and should improve preformance.
If that does not work, you can try the steps mentioned in Slow Computer/browser? Check Here First; It May Not Be Malware.

We Need to Clean Up Our Mess
  • Download OTC by OldTimer and save it to your desktop.
  • Double click Posted Image icon to start the program. If you are using Vista, please right-click and choose run as administrator
  • Then Click the big Posted Image button.
  • You will get a prompt saying "Being Cleanup Process". Please select Yes.
  • Restart your computer when prompted.



Recommendations
Below are some recommendations to lower your chances of (re)infection.
  • Install and maintain an outbound firewall
  • Install Spyware Blaster and update it regularly
    If you wish, the commercial version provides automatic updating.
  • Install the MVPs hosts file, and update it regularly
    You can use the HostMan host file manager to do this automaticly if you wish.
    For more information on the hosts file, and what it can do for you, you can view the Tutorial on the Hosts file
  • Install an Anti-Spyware program, and update it regularly
    Malware Byte's Anti Malware is an excellent Anti-Spyware scanner. It's scan times are usually under ten minutes, and has excellent detection and removal rates.
    SUPERAntiSpyware is another good scanner with high detection and removal rates.
    Both programs are free for non commercial home use but provide a resident and do not nag if you purchase the paid versions.
  • Keep Windows (and your other Microsoft software) up to date!
    I cannot stress how important this is enough. Often holes are found in Internet Explorer or Windows itself that require patching. Sometimes these holes will allow an attacker unrestricted access to your computer.

    If you are using Windows XP or earlier
    Visit the Microsoft Update Website and follow the on screen instructions to setup Microsoft Update. Also follow the instructions to update your system. Please REBOOT and repeat this process until there are no more updates to install!!

    If you are using Windows Vista
    • Click the "Start Menu" (or Windows Orb)
    • Click "All Programs"
    • Click "Windows Update"
    • On the left, choose "Change Settings"
    • Ensure that the checkbox "Use Microsoft Update" at the bottom of the window is checked.
    • Press OK and accept the UAC prompt.
      Note: You shouldn't need to check this checkbox every single time you update, only the first time.
    • Click "Check for Updates" in the upper left corner.
    • Follow the instructions to install the latest updates.
    • Reboot and repeat the "Check for Updates" until there are no more critical updates to install
  • Keep your other software up to date as well
    Software does not need to be made by Microsoft to be insecure. You can use the Secunia Online Software occasionally to help you check for out of date software on your machine.
  • Stay up to date!
    The MOST IMPORTANT part of any security setup is keeping the software up to date. Malware writers release new variants every single day. If your software updates don't keep up, then the malware will always be one step ahead. Not a good thing :(.

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
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#7 fireman4it

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Posted 09 March 2011 - 03:33 PM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
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