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MALWARE CANNOT BE REMOVED FROM HARDDISK


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1 reply to this topic

#1 ajum

ajum

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Posted 12 June 2011 - 10:58 PM

Hello Security forum,

At present many new malicious software are active, now for three weeks ago I got a virus which is not removal
by the usually tools and procedures as mentioned. I suspect this type of virus is one of the most
dangerous I have ever had. My computer itself is in topcondition.
I also used GMER rootkit detection/removal newest version 1.015 with no results.

Please let me explain what I have done before:
For clearing the virus can escape and executing in more identities and can not be dectected by
Anti-virus application Norton Internet Suite 2011 which is up to date, Strongly speaking it manipulates
with this program which I can not be trusted any more.
I can as usually work on my computer but with some differencies. (virus identities)
1e) manipulating with WindowXP SP3 settings such as: colors, textsize, messages like “new program
installed” in start-menu (every time) and much more…., 2e) On internet it manipulates chosen webpages
like textsize, reclames, icons, pictures. Scrollbars… 3e) At turn on it can manipulate the bootingsequence
if the virus is angry. 4e) it can manipulate with download utilities to use its own settings or using slightly
different instruction the utility execute.

The following procedure on the highest level (extremity overkill) are described with no results:
The floppy’s are clean and write-proctected.
The proceduresteps are exactly in the sequence as described below:

1) turn-off computer (5 min.)
2) putting out the internet and powercable and remove the cmos battery.
3) disconnecting HDD from sataport
4) connect the usb-floppy with biosfile
5) turn on computer (without battery)
6) change bootsequence: 1 usb-floppy, 2 disabled 3 disabled
7) save biossettings
8) rebooting to the postscreen using F8 for the Flash utility (Gigabyte P35-dq6)
9) reading and updating the bios
10) after bioscomplete and before rebooting, turn off computer (see point 1,2 (except internetcable.))
11) turn on computer (without battery) and change again biosettings 1e usb-floppy 2 disabled 3 disabled
12) save biossettings
13) rebooting again to usb floppy with (Vendor seatools for full-zero filled)
14) after completed it takes 3 hours)
15) rebooting to change again the bootsequence: 1 usb-floppy, cdrom, 3 HDD
16) save biossettings.
17) Rebooting to the CD WindowsXP installation.
18) Installing a fresh WindowsXP (fixmbr (in case that), new partition, full format)
19) After installation was completed and I got my windows startscreen I did some tests if it is clean.

After that I also tried another procedure with NONE BIOS-DETECTING TO HDD with no results!!:

Step
01) Computer turned off
02) Internet en Powercable unplugged.
03) Satacable unplugged from SataController.
04) Turn-on computer after 5 min.
05) Biossettings: 1 USBfloppy 2 disabled 3 disabled
06 Reboot to USBfloppy (with Manufacturer’s Seatools)
07) After I accepted the license agreement from Seatools, I plugged-in the HDD into Sataport
08) Seatools detects the HDD and executed the full-zero filled operation.
09) After the operation I turned off the computer without Powercable for 5 min.
10) Turn-on the computer
11) bootsequence: 1) Cdrom, 2) disabled 3) disabled (note: HDD still disconnected)
12 reboot to installation-CD Winxp Pro
13) Now I let windows setup detecting my HDD
14) create new partition and full format. (FIXMBR also used)
15) During the installation, windows copies the systemfiles, suddenly the installation breakdown because
of the message said “windows cannot copy the file xxxxxxx? try again, reboot or make sure that the CD
is in the cddrive. I have installed many window-installations with the same cd and no problems were
appeared.

I was very shocked that above procedures help nothing to remove that nasty one
I believe it is a FlashBios rootkit and possible also a MBR rootkit.Why? I have connected
an old IDE HDD (clean) to install Windows (the same procedures as asbove) but with no results. The
most important is the startup sequence (starting from turn-on computer until the moment the bios boot to
the MBR. If in that timeperiod no interaction (during the POST) from user is possible than the rootkit can be
transferred to memory but also biosroutine instructies are in memory. Possible it can adhere to those
biosinstructies, a way to convert the bios with its own one. Of course memory dumps, binaries,
datastructures, interupt vectors, comparing tools are possible to discover it but its very complicated and a
lot of time consumed.Hotflash is no option for me it takes too much time to search, adver the
same/compatible chipset P35 Its als too old.The only way is forensic analysis, that costs to much time and
money for me. So if nobody can help me, then I decide to buy a old new motherboard P45 and HDD’s

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#2 cryptodan

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Posted 12 June 2011 - 11:27 PM

Hello,

And welcome to BleepingComputer.com, before we can assist you with your question of: Am I infected? You will need to perform the following tasks and post the logs of each if you can.

Malwarebytes Anti-Malware

NOTEMalwarebytes is now offering a free trial of their program, if you want to accept it you will need to enter some billing information, so that at the end of the trial you would be charged the cost of the product. Please decline this offer, if you are unable to provide billing information. If you want to try it out, then provide the billing information.

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.


Now GMER

GMER does not work in 64bit Mode!!!!!!

Please download GMER from one of the following locations and save it to your desktop:

  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic Full Scan when first run. (do not use the computer while the scan is in progress)
  • If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  • Now click the Scan button. If you see a rootkit warning window, click OK.
  • When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  • Click the Copy button and paste the results into your next reply.
  • Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.
-- If you encounter any problems, try running GMER in safe mode.
-- If GMER crashes or keeps resulting in a BSODs, uncheck Devices on the right side before scanning
.






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