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Win7 Home Prem won't boot after TDSSKiller


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11 replies to this topic

#1 mtupper

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Posted 15 December 2011 - 05:23 PM

Greetings all,

I have been given a machine that had several malware issues, and the end user was savvy enough to find out about TDSSKiller and run it. However, after detecting a problem and cleaning it the computer will not boot.

The symptoms are EXACTLY the same as this topic:
Same issue

I have tried everything I can think of and research, and even followed the instructions from the previous post to get a FRST64 report from the system.



If anyone could assist me with regaining access to this machine, I would be ever so grateful. If I've skipped ahead too far, let me know that as well, and I'll be happy to start from the beginning.

-mtupper

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#2 Elise

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Posted 16 December 2011 - 02:47 AM

Hello,

Please start your computer and tap F10 until the Edit Boot Options screen comes up.

Look what is listed between the brackets. If you see /MININT listed, please use backspace to remove that. Leave everything else the same.

Press enter to continue booting and let me know if you can get in Windows this way.

regards, Elise


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#3 mtupper

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Posted 16 December 2011 - 11:50 AM

Elise,

As a matter of fact, I can!

Everything is coming up fine at the moment, and I am continuing to look for additional malware to make sure the system is clean.

Is there anything that needs to be done to make this change permanent, or other steps I need to take? At minimum at least I can save the data now.

Thank you so much!

-mtupper

#4 Elise

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Posted 16 December 2011 - 12:17 PM

Most definitely, this is only a temporary fix. :)

Please click Start > All Programs > Accessories, right click on Command Prompt and select "run as administrator".

Type the following and press enter after each line.

bcdedit /export c:\bcd_old

bcdedit /set {default} winpe no


Restart your computer and let me know if it booted normally now.

Lets also have a closer look at what is running on your computer.

We need to see some information about what is happening in your machine. Please perform the following scan:
  • Download DDS by sUBs from one of the following links. Save it to your desktop.
  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explaination about the tool. No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results.
  • Close the program window, and delete the program from your desktop.
Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control HERE

regards, Elise


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#5 mtupper

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Posted 16 December 2011 - 02:52 PM

Elise,

The computer boots perfectly again! :thumbup2:

I am attaching the report from DDS.

I know I may not be out of the woods yet but MacAfee and Malwarebytes have clean scans.

Thank you so much for getting me this far!

Attached File  DDS.zip   8.11KB   2 downloads

-mtupper

#6 Elise

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Posted 16 December 2011 - 03:06 PM

I see no more active malware but some things that need taken care of.

COMBOFIX
---------------
Please download ComboFix from one of these locations:
Bleepingcomputer
ForoSpyware
  • Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. (Click on this link to see a list of programs that should be disabled. The list is not all inclusive.)
  • Double click on Combofix.exe and 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.
  • 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, or if you are running Vista, ComboFix will continue it's malware removal procedures.

Posted Image


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 shall produce a log for you. Please include the C:\Combofix.txt in your next reply.

regards, Elise


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#7 mtupper

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Posted 16 December 2011 - 04:27 PM

Attached File  ComboFix.zip   6.31KB   4 downloads

Output of ComboFix attached.

-mtupper

#8 Elise

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Posted 16 December 2011 - 04:40 PM

That cleaned up a few things. Can you now please rerun DDS and post attach.txt?

regards, Elise


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#9 mtupper

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Posted 16 December 2011 - 05:11 PM

Attached File  Attach.txt   27.77KB   2 downloads

Attach.txt as requested.

Thanks again!

-mtupper

#10 Elise

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Posted 17 December 2011 - 04:29 AM

Lets do a few updates and an additional scan.

Your version of Adobe Reader is out of date. Older versions have vulnerabilities that malicious sites can use to exploit and infect your system. Please follow these steps to remove older version Adobe components and update:
  • Download the latest version of Adobe Reader Version X. and save it to your desktop.
  • Uncheck the "Free McAfee Security plan Plus" option or any other Toolbar you are offered
  • Click the download button at the bottom.
  • If you use Internet Explorer and do not wish to install the ActiveX element, simply click on the click here to download link on the next page.
  • Remove all older version of Adobe Reader: Go to Add/remove and uninstall all versions of Adobe Reader, Acrobat Reader and Adobe Acrobat.
    If you are unsure of how to use Add or Remove Programs, the please see this tutorial:How To Remove An Installed Program From Your Computer
  • Then from your desktop double-click on Adobe Reader to install the newest version.
    If using Windows Vista and the installer refuses to launch due to insufficient user permissions, then Run As Administrator.
  • When the "Adobe Setup - Welcome" window opens, click the Install > button.
  • If offered to install a Toolbar, just uncheck the box before continuing unless you want it.
Your Adobe Reader is now up to date!


Your version of Java is out of date. Older versions have vulnerabilities that malicious sites can use to exploit and infect your system.
  • Download the latest version of Java Runtime Environment (JRE) Version 7u2.
  • Look for "JDK 7u2 (JDK or JRE).
  • Click the "Download JRE" button at the right.
  • Read the License Agreement, and then check the box that says: "Accept License Agreement".
    • Select "Windows x86 Offline" and click on jre-7-windows-i586.exe
  • Save it to your desktop
  • Close any programs you may have running - especially your web browser.
  • Uninstall all older versions of Java (any item with Java Runtime Environment, JRE or J2SE in the name).
  • Reboot your computer once all Java components are removed.
  • Install the newest version by double clicking (run as Administrator for Windows Vista/Seven) the downloaded file.


Please launch Malwarebytes Antimalware and update it. Run a full scan and post me the resulting log.

regards, Elise


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#11 mtupper

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Posted 28 December 2011 - 09:19 AM

Elise/all

The original owner of the machine has taken it back... I've forwarded the instructions to update Acrobat/Java and get rid of old Java versions. They have indicated that they will do so, but I probably won't get the Malwarebytes log file.

You can mark this one as 'solved', and I ***greatly*** appreciate all those that helped and pointed me in the right directions. Thanks to all of you who do this amazing work!

-mtupper

#12 Elise

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Posted 28 December 2011 - 09:29 AM

I have included some general prevention steps as well below. I will close this topic. If you need it reopened please send me a PM.


Please do the following to remove the remaining programs from your PC:
  • Delete the tools used during the disinfection:
  • Click start > run and type combofix /uninstall, press enter. This will remove Combofix from your computer.
  • Delete DDS, GMER (this is a random named file) and OTL.
Please read these advices, in order to prevent reinfecting your PC:
  • Install and update the following programs regularly:
    • an outbound firewall. If you are connected to the internet through a router, you are already behind a hardware firewall and as such you do not need an extra software firewall.
      A comprehensive tutorial and a list of possible firewalls can be found here.
    • an AntiVirus Software
      It is imperative that you update your AntiVirus Software on regular basis.If you do not update your AntiVirus Software then it will not be able to catch the latest threats.
    • an Anti-Spyware program
      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.
    • Spyware Blaster
      A tutorial for Spywareblaster can be found here. If you wish, the commercial version provides automatic updating.
  • 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.
    Therefore, please, 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!!
  • 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 yourmachine.
  • 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.
Some more links you might find of interest:

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

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