Help, MBR: \\.\PHYSICALDRIVE0

[REDACTED]

Hi to you all.
I had problems with this rootkit which was detected by avast. But it couldn't delete or fix it.
After avast run boot time scan, it still not gone.
Please help me to get rid of this problems.
Thank you!

[Michael (alan1998)]

Remover Notified.

Please uninstall uTorrent. It'll lead to you being infected.

[REDACTED]

I have already removed uTorrent but the problems are still there.
Please help me to fix it !

[magna86]

Hello,

Seems that aswMBR give us the FP detection. Let's check that additionaly ...




Please download TDSSKiller  and save it to your desktop

  Execute TDSSKiller.exe by doubleclicking on it.
Confirm "End user Licence Agreement" and "KSN Statement" dialog box by clicking on Accept button.

• Under Additional options check the boxes next to:
  - Verify Driver Digital Signature;
  - Detect TDLFS file system
  - Use KSN to scan objects
  
•   Press Start Scan
  
•   If Suspicious object is detected, the default action will be Skip, click on Continue.
  
•   If Malicious objects are found, select Cure.

Once complete, a log will be produced at the root drive which is typically C:\ ,for example, C:\TDSSKiller.<version_date_time>log.txt


Please post the contents of that log in your next reply.

[REDACTED]

Here is the log...

[Michael (alan1998)]

Hi, reopen your TDSSKiller log. > Save as > Encoding > ANSI.

(That way we can read it!)

See attached. (You don't need to rename the file. Just mark it as TdssKill(1).txt

[REDACTED]

Here is the encoded log.
Thanks for your reply.

[Michael (alan1998)]

THanks, your previous logs were corrupt.

Magna shall be able to continue now

[magna86]

Hello,
Re-run TDSSKiller as you did before but this time for this line use Delete options;
2:31:30.0857 0x0a20  \Device\Harddisk0\DR0 ( HEUR:Rootkit.Boot.BackBoot.gen ) - User select action: Skip
Post me the fresh created TDSSKiller logfile.






1. Please download ComboFix by sUBs () from here and save it to your Desktop.
If you are unsure how ComboFix works, read this guide.

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2. Temporarily disable your AntiVirus program, usually via a right click on the System Tray icon. They may interfere with Combofix.
If you are unsure how to do this please read this or this Instruction.

Instructions how to disable avast:
• Right click on the avast! system tray icon () in the lower right corner of the screen and scroll up to avast! shield controls;
• In the menu that appears, choose Disable Permanently. When you are prompted to turn off security, click Yes.

Note:  Do not forget to turn back on this option after the cleaning by choosing avast! shield controls > Enable all shield options.

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3. Run ComboFix. Then, on disclaimer window, click I Agree! button.

- ComboFix will check if there is a newer version of ComboFix available.
Click Yes if prompted to download.
-If Recovery Console is not installed, ComboFix will offer download & installation.
Click Yes to allow ComboFix to install Recovery Console.
- ComboFix will scan your computer in stages, total of 50 stages.
Do not mouse-click around while ComboFix is running.
- If malware is detected, ComboFix will begin with its removal, and may need to restart Windows.
Note:If you see a message like "Illegal operation attempted on a registry key that has been marked for deletion" just restart your computer.

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4. When the tool is finished, it will produce a log report for you. (typical location: C:\ComboFix.txt)
=> Attach log report (ComboFix.txt) back to topic.

ComboFix shall also create addition log (typical location: C:\Qoobox\ComboFix-quarantined-files.txt)
=> Please attach that report (ComboFix-quarantined-files.txt) as well.

[REDACTED]

The TDSSKiller for the line \Device\Harddisk0\DR0 ( HEUR:Rootkit.Boot.BackBoot.gen ) only have 3 options: Skip, Copy to quarantine and Restore. It don’t have option Delete like other lines. What should I do?

And here are Combofix logs

[magna86]

Let's use FRST again but loaded from Recovery Environment.

• Please download Farbar Recovery Scan Tool and save it to a flash drive.
  
  Note: You need to run the version compatible with your system.
  
  Plug the flashdrive into the infected PC.
  
  
• If you are using Windows 8 consult How to use the Windows 8 System Recovery Environment Command Prompt to enter System Recovery Command prompt.
  
  If you are using Vista or Windows 7 enter System Recovery Options.
  
  To enter System Recovery Options from the Advanced Boot Options:
  
  • Restart the computer.
  • As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
    
  • Use the arrow keys to select the Repair your computer menu item.
    
  • Select US as the keyboard language settings, and then click Next.
    
  • Select the operating system you want to repair, and then click Next.
    
  • Select your user account an click Next.
    
  Note: In case you can not enter System Recovery Options by using F8 method, you can use Windows installation disc, or make a repair disc. Any Windows installation disc or a repair disc made on another computer can be used.
  To make a repair disk on Windows 7 consult: http://www.sevenforums.com/tutorials/2083-system-repair-disc-create.html
  
  To enter System Recovery Options by using Windows installation disc:
  
  • Insert the installation disc.
  • Restart your computer.
  • If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.[/*]
    
  • Click Repair your computer.
    
  • Select US as the keyboard language settings, and then click Next.
    
  • Select the operating system you want to repair, and then click Next.
    
  • Select your user account and click Next.
    
• On the System Recovery Options menu you will get the following options:
  
  Startup Repair
  System Restore
  Windows Complete PC Restore
  Windows Memory Diagnostic Tool
  Command Prompt
  
  Select Command Prompt
  
  
• Once in the Command Prompt:
  
  • In the command window type in notepad and press Enter.
    
  • The notepad opens. Under File menu select Open.
    
  • Select "Computer" and find your flash drive letter and close the notepad.
  • In the command window type e:\frst (for x64 bit version type e:\frst64) and press Enter
    Note: Replace letter e with the drive letter of your flash drive.
    
  • The tool will start to run.
  • When the tool opens click Yes to disclaimer.
  • Press Scan button.
    
  • It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.
    

[REDACTED]

Here is the fresh FRST log.

[magna86]

Hello,

Download this fixlist.txt and save it next to the FRST tool on your flash drive.
Run FRST again at the same way as you did earlier, from Recovery Environment and press Fix button.
FRST will process fixlist.txt and Fix process shall be made.
When finished, it will produce a log fixlog.txt on your USB flashdrive.


Then, from normal mode, run TDSSKiller again and post me his results.

[REDACTED]

Look like the problems have gone
Thank you very much ^^

[magna86]

I am the master. 



 



Ok, post me the fresh FRST logs (both of them) for re-analysis.