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RootKit.MBR infection?


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#1 bonnjer

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Posted 24 December 2009 - 09:01 PM

Desktop restarted itself earlier today and when it loaded back up, everything was running slow. I eventually got MBAM to run in safe mode and it found two Rootkit.MBR files. I removed them and restarted. Same problem came up after restart. I tried running MBAM again, but got BSOD.

I'm currently in safe mode under the Admin account and able to use IE.

Help is greatly appreciated!!

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#2 boopme

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Posted 24 December 2009 - 09:30 PM

Hello ,Do you have Safe Mode with Networking?

Can you run this from a USB device or a CD?
To check for and confirm the MBR rootkit, use either GMER or the standalone mbr.exe tool by Gmer (preferable).
Dr. Web Cureit detects and sometimes fixes it...and RootRepeal can fix the MBR rootkit.


Please download mbr.exe and save it to the root directory, usually C:\ <- (Important!).
  • Go to Start > Run and type: cmd.exe
  • press Ok.
  • At the command prompt type: c:\mbr.exe >>"C:\mbr.log"
  • press Enter.
  • The process is automatic...a black DOS window will open and quickly disappear. This is normal.
  • A log file named mbr.log will be created and saved to the root of the system drive (usually C:\).
  • Copy and paste the results of the mbr.log in your next reply.
If you have a problem using the command prompt, you can just double-click on mbr.exe to run the tool.

Edited by boopme, 24 December 2009 - 09:32 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

#3 bonnjer

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Posted 24 December 2009 - 09:44 PM

Boopme, thanks for the reply! Here's the copy/paste from mbr.log:

Stealth MBR rootkit/Mebroot/Sinowal detector 0.3.7 by Gmer, http://www.gmer.net

device: opened successfully
user: MBR read successfully
kernel: MBR read successfully
detected MBR rootkit hooks:
\Driver\atapi -> 0x89fffab0
NDIS: Intel® PRO/100 VE Network Connection -> SendCompleteHandler -> 0x89f0c070
Warning: possible MBR rootkit infection !
copy of MBR has been found in sector 0x0DF83CBD
malicious code @ sector 0x0DF83CC0 !
PE file found in sector at 0x0DF83CD6 !
MBR rootkit infection detected ! Use: "mbr.exe -f" to fix.

#4 boopme

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Posted 24 December 2009 - 09:57 PM

OK now..
Open Windows Explorer and rename the C:\mbr.log to C:\mbr.old
Go to Start > Run and type: cmd
press Ok.
At the command prompt, type: cd \
press Enter.
At the command prompt, type: mbr.exe -f
(make sure you have a space before the e and the -f)
press Enter.
At the command prompt, type: exit
press Enter.

It will produce a new report at C:\mbr.log. Please copy/paste the results in your next reply.

Reboot,very important.
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

#5 bonnjer

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Posted 24 December 2009 - 10:01 PM

Stealth MBR rootkit/Mebroot/Sinowal detector 0.3.7 by Gmer, http://www.gmer.net

device: opened successfully
user: MBR read successfully
kernel: MBR read successfully
detected MBR rootkit hooks:
\Driver\atapi -> 0x89fffab0
NDIS: Intel® PRO/100 VE Network Connection -> SendCompleteHandler -> 0x89f0c070
Warning: possible MBR rootkit infection !
copy of MBR has been found in sector 0x0DF83CBD
malicious code @ sector 0x0DF83CC0 !
PE file found in sector at 0x0DF83CD6 !
MBR rootkit infection detected ! Use: "mbr.exe -f" to fix.
original MBR restored successfully !


Reboot now to Safe Mode with networking or just normal mode?

#6 boopme

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Posted 24 December 2009 - 10:21 PM

Ok, good
Now rerun the first MBR instructions. Post that log.
You have Regular mode back?
Then install and run mBam from normal.

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

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

#7 bonnjer

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Posted 24 December 2009 - 10:37 PM

Ok, I rebooted into normal mode. I ran the first MBR instructions and here's the log:

Stealth MBR rootkit/Mebroot/Sinowal detector 0.3.7 by Gmer, http://www.gmer.net

device: opened successfully
user: MBR read successfully
kernel: MBR read successfully
user & kernel MBR OK
copy of MBR has been found in sector 0x0DF83CBD
malicious code @ sector 0x0DF83CC0 !
PE file found in sector at 0x0DF83CD6 !


I am running MBAM now and will post the log when it is finished.

#8 boopme

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Posted 24 December 2009 - 10:47 PM

Ok we will have a few steps more I think..
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

#9 bonnjer

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Posted 24 December 2009 - 11:12 PM

MBAM quick scan is hung up at 26 minutes, 38 seconds on C:\WINDOWS\orun32.isu

What now?

#10 boopme

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Posted 24 December 2009 - 11:37 PM

It can take an hour,depends on a lot of things..

I'll look back tomorrow.
:thumbsup:
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

#11 bonnjer

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Posted 24 December 2009 - 11:43 PM

So what might we be looking at for the next step if the MBAM scan ever unhangs and finishes?

#12 bonnjer

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Posted 25 December 2009 - 01:47 AM

Ok, finally finished. Here's the MBAM log:

Malwarebytes' Anti-Malware 1.42
Database version: 3426
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

12/25/2009 12:44:37 AM
mbam-log-2009-12-25 (00-44-37).txt

Scan type: Quick Scan
Objects scanned: 185798
Time elapsed: 47 minute(s), 50 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)

#13 boopme

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Posted 25 December 2009 - 03:33 PM

Ok do we have safe and normal mode? Regular Internet connectin?

I was to do an Online and safe mode scan.
I'd like us to scan your machine with ESET OnlineScan
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the Posted Image button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Posted Image to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Posted Image icon on your desktop.
  • Check Posted Image
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Push the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Push the Posted Image button.
  • Push Posted Image

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.


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

#14 bonnjer

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Posted 25 December 2009 - 08:23 PM

ESET Scan log:

C:\Documents and Settings\All Users\Application Data\Spybot - Search & Destroy\Recovery\Yazzle.zip Win32/Bagle.gen.zip worm cleaned by deleting - quarantined
C:\Documents and Settings\All Users\Application Data\Spybot - Search & Destroy\Recovery\Yazzle1.zip Win32/Bagle.gen.zip worm cleaned by deleting - quarantined
C:\Documents and Settings\HelpAssistant\Local Settings\Temporary Internet Files\Content.IE5\S3QFBKHD\oHbeedef4aV0100f070006Red6d24a1102Tf5de7921201l0409Kcdddd3d3317[1].pdf JS/Exploit.Pdfka.ASD trojan cleaned by deleting - quarantined
C:\Documents and Settings\HelpAssistant\Shared\Wynonna Judd - Heaven Help Me.mp3 a variant of WMA/TrojanDownloader.GetCodec.gen trojan cleaned - quarantined
C:\Documents and Settings\Jeremy Bonnette\Shared\Wynonna Judd - Heaven Help Me.mp3 a variant of WMA/TrojanDownloader.GetCodec.gen trojan cleaned - quarantined
C:\System Volume Information\_restore{B37680B2-BA0A-4E5D-BF30-83E44C588624}\RP1434\A0154147.dll Win32/TrojanDownloader.Mebload.T trojan cleaned by deleting - quarantined


SAS Scan log:

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 12/25/2009 at 05:59 PM

Application Version : 4.32.1000

Core Rules Database Version : 4410
Trace Rules Database Version: 2243

Scan type : Complete Scan
Total Scan Time : 00:54:21

Memory items scanned : 284
Memory threats detected : 0
Registry items scanned : 6703
Registry threats detected : 0
File items scanned : 32377
File threats detected : 0


Computer seems to be running with no problems at this time. Is there anything else that we need to run on this or do you think that has taken care of the RootKit problem?

#15 boopme

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Posted 25 December 2009 - 09:59 PM

Ok ,let's check your JAVA
Go into Control Panel>Add Remove Programs. Be sure the 'Show Updates' box is checked. Go down the list and tell me what Java applications are installed and their version. (Highlight the program to see this).

We Need to check for Rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive (If you did not use the "Direct Download" mirror).
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

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




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