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Boot.Mebroot Reported by Norton NIS 2011


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#1 HateTheSnow

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Posted 01 April 2011 - 11:06 PM

I'm looking for some expert advise since Norton reported yesterday that I had a Boot.Mebroot virus on my system and it has been less than conclusive the threat has been resolved. For the initial notification, there was very little info provided by Norton; except that it was a master boot record infection (Boot.Mebroot), on drive 0x85 (whichever one that is), a high security threat, and that it was unable to automatically remove the threat.

Posted Image

Playing it safe, I unplugged the system from the local LAN and did a bit of research on an uninfected system. According to Symantec, the fix was as simple as using FIXMBR to overwrite the virus. With this information; I rebooted to the Recovery Console, ran FIXMBR on all three (3) physical drives in the system, rebooted to Windows, and ran a full system scan...which came up clean. However, I still got the Norton pop-up about the Mebroot infection...until I went into the Norton History for Unresolved Security Threats, selected the Mebroot entry, and hit options. Once there, it gave me the option to remove the file, but when I did it said the file was no longer on the system. I also ran MalwareBytes Anti-Malware afterwards in regular Windows mode which came up clean.

From the bits I've been able to dig up on this site, this particular critter can be quite nasty and there is no way to be 100% certain it is gone until all drives are formatted and the OS is reinstalled. With that in mind, I do have monthly image backups of my drives (via Ghost) and daily backups of my critical data (via Robocopy) to an external drive. The system in question is running Win XP SP3 (fully patched), and will be upgraded to Win 7 in the near future (clean install to zero-wiped drives).

I know the "safe" bet here is to go forward with the wipe and Win7 install, but free-time is a factor for me, so I would like to know what my options are to be reasonably certain I have a system that is clean in the interim.

Additionally, I did run GMER's MBR.EXE util on the boot drive, which came up clean. Log is below.

Stealth MBR rootkit/Mebroot/Sinowal/TDL4 detector 0.4.2 by Gmer, http://www.gmer.net
Windows 5.1.2600 Disk: WDC_WD3000HLFS-01G6U3 rev.04.04V05 -> Harddisk0\DR0 -> \Device\0000009e 

device: opened successfully
user: MBR read successfully
kernel: MBR read successfully
user & kernel MBR OK

Regards,
HateTheSnow

Edited by HateTheSnow, 01 April 2011 - 11:09 PM.


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#2 cryptodan

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Posted 01 April 2011 - 11:12 PM

Malwarebytes Anti-Malware

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1
Download Link 2MBAM 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.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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 Full 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.


SUPERAntiSpyware:

Please download and scan with SUPERAntiSpyware Free

  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If it will not start, go to Start > All Prgrams > SUPERAntiSpyware and click on Alternate Start.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and 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 a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • 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.
If you have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.

Instructions:

Download and scan with SUPERAntiSpyware Free for Home Users
  • Double-click SUPERAntiSpyware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the Scanning Control tab.
  • 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.
  • Back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan.
  • Click "Next" to start the scan. Please be patient while it scans your computer.
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes".
  • 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.
If you have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.



#3 HateTheSnow

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Posted 01 April 2011 - 11:16 PM

Malwarebytes Anti-Malware is currently installed and has been run...outcome was clean

I will give SUPERAntiSpyware a spin and see if anything new comes up

Thanks for the input,
HateTheSnow

#4 HateTheSnow

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Posted 02 April 2011 - 08:00 AM

SUPERAntiSpyware came through clean for the most part. Aside from the tracking cookies, which I cleaned up a bit, it also came up with three false positives (bottom of log) that I did not remove. Nothing else turned up. The log is below:

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

Generated 04/02/2011 at 01:42 AM

Application Version : 4.50.1002

Core Rules Database Version : 6735
Trace Rules Database Version: 4547

Scan type       : Complete Scan
Total Scan Time : 01:19:21

Memory items scanned      : 791
Memory threats detected   : 0
Registry items scanned    : 12668
Registry threats detected : 0
File items scanned        : 57857
File threats detected     : 85

Adware.Tracking Cookie
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.vr-zone[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.nutritiondiscounters[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.accountonline[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@redorbit[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@thefind[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stats.paypal[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.usacarry[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.mynortonaccount[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.vgchartz[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.townhall[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.digitalmedianet[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@imageads5.googleadservices[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.somd[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@digitalmedianet[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@accountonline[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@imageads5.googleadservices[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.pricescan[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@forums.digitalmedianet[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@forums.digitalmedianet[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.discountlocks.co[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@bizrate[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@track.asus[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.digital-digest[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@mynortonaccount[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.trutv[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.gunboards[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ssl.clickbank[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.mynortonaccount[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@tracker.opticsplanet[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@sdctrack.thomasnet[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@tripod[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stats.gamestop[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stats.gamestop[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.cioinsight[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@clickbank[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.nakedcapitalism[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@at-adserver.alltop[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.fulldls[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.usenext[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@discountlocks.co[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stats.photodex[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@adverts.brighthouse[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@banner.slashcam[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stat.dealtime[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@adserv.legitreviews[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@cioinsight[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@couponmountain[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@mediaserver.salliemae[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.michaelwaddell[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@nutritiondiscounters[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@sdctrack.thomasnet[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.bleepingcomputer[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@findarticles[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@sdctrack.thomasnet[4].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.videomaker[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@media2.legacy[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@myaccount.allstate[1].txt
	cdn.insights.gravity.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	ia.media-imdb.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	media.cnbc.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	media.vmixcore.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	media1.break.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	msnbcmedia.msn.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	sftrack.searchforce.net [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	www.5levelmedia.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	www.99counters.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	www.webhostrevenue.com [ C:\Documents and Settings\[REMOVED]\Application Data\Macromedia\Flash Player\#SharedObjects\ZJRZTC5R ]
	y.j.y.cltomedia.info [ C:\Documents and Settings\[REMOVED]\Application Data\Mozilla\Firefox\Profiles\rtp07pl5.default\cookies.sqlite ]
	cltomedia.info [ C:\Documents and Settings\[REMOVED]\Application Data\Mozilla\Firefox\Profiles\rtp07pl5.default\cookies.sqlite ]
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@nextag[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@thefind[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.nutritiondiscounters[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@insight[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@stat.dealtime[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@tracker.opticsplanet[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.fulldls[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@www.insight[2].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@ads.pricescan[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@dealtime[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@media.nmfn[1].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@liveperson[3].txt
	C:\Documents and Settings\[REMOVED]\Cookies\[REMOVED]@liveperson[1].txt

Trojan.Agent/Gen-FakeDrop
	C:\PROGRAM FILES\CED\UNINSTALL USB DATA COLLECTOR.EXE

Trojan.Agent/Gen-FakeAlert[Local]
	D:\000 DATA\MY DOCUMENTS\FIRE DEPT\TRIBUTE TO 9-11\CAMINERO4664-911884.EXE

Trojan.Net-Explore/DND
	D:\004 MICROSOFT\WIN 9X\WINDOWS 95\POWER TOYS\EXPLORE.EXE


#5 cryptodan

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Posted 02 April 2011 - 08:18 AM

Please follow the instructions in ==>This Guide<==.

Once the proper logs are created, then make a NEW TOPIC and post it ==>HERE<== Please include the link to this topic in your new topic and a description of your computer issues and what you have done to resolve them.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

Once you have created the new topic, please reply back here with a link to the new topic.

#6 HateTheSnow

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Posted 02 April 2011 - 02:29 PM

Done! Thanks again for the help cryptodan.

Link to topic in logs forum

#7 hamluis

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Posted 02 April 2011 - 03:43 PM

Now that your log is properly posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a Malware Removal Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the logs you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on, the Malware Removal Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the Malware Removal Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the Malware Removal Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another Malware Removal Team member is already assisting you and not open the thread to respond.

To avoid confusion, I am closing this topic.

Louis




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