Vermutliche Verschlüsselungs-Trojaner auf Verschlüsselden Festplatte.
 

Erst mal sorry wegen meine mangelhaftes Deutsch, ich kann English perfekt, aber versuche es mal auf Deutsch.

Wie viele Leute hier habe ich auch gestern eine Laptop bekommen, die genau diese Weiße Bildschirm mit Verbindungsversuch anzeigen. Hab sofort erst meine CT CD eingelegt und versucht es zu entfernen. Es ging, aber beim neustart war ich wieder Infiziert. Im Linux Umgebung muss ich allerdings immer die Festplatte mit Truecrypt einbinden. Die Festplatte hat allerdings 3 Partitionen, und ich kann nur 2 davon sehen, meine erste Problem.

1 Partition = Asus boot Partition mit fastboot software
2 Partition = C: mit Windows und Programme
3 Partition = D: mit Daten und auch Benutzer Ordner von Windows

Also im Linux Umgebung könnte ich leider die Virus nicht erwischen, egal mit Avira, BitDefender oder ClamAV. Ich habe es mehrmals gefunden und gelöscht, aber immer nach eine neustart ist es wieder erscheint.

Heute morgen geht den abgesicherte Version noch mit Netzwerk und habe ich MalwareBytes laufen lassen(keine fund), CClean und endlich auch Avira entfernt und eine registry clean von Avira selbst laufen lassen. Nach eine neustart gerade eben ist meine abgesicherte Windows nun auch mit den herrliche Weiße Bildschirm bestückt.

Jetzt bin ich am ende, Der OTLPE CD boot auch nicht

(Fehler meldung: A problem has been detecte and Windows has been shut down to prevent damage to your computer)

Ich habe auch probiert mit den BIOS umstellung auf IDE nach es auf AHCPI war.. trotzdem nicht. :heulen:

Ich bin jetzt am ende... kann jemand mich mit diesem Horror helfen?
Win 7 Pro 64bit

Good morning Adesso,

stay in english, it´s okay! :)

Which operating system is installed? Tell me if its the 32- or the 64bit version, too!

I think you missed that at the end :)

You´re right, I missed it!

You have to decrypt your hard disk to allow some tools to scan it offline.
Use the TrueCrypt Rescue CD you created during the installation of TrueCrypt.

Some of our tools won´t run from out of linux and there is no possibility to embed the truecrypt functionality!

So after spending the whole day yesterday decrypting the Hard Drive I finally have the logfile you need. I have two users on the PC so I used xxx and *** to hide the usernames, plus I also had username_ON_D for each, there I used XXXX and ****, so I can convert it back again right. I hope this is OK

I need to run a malwareBytes scan, I recon I will use the Ubuntu virus recue CD again from the CT Magazine(09/2012) to do this, and save the infected files I find.

Scan with aswMBR

Please download aswMBR.exe to your desktop.

• Double-click the aswMBR.exe to run it
• When prompted with The application can use the Avast! Free Antivirus for scanning >> select No
• Now click on the Scan button to start scan
• On completion of the scan click Save Log, save it to your desktop and post the contents in your next reply

Note: There will also be a file on your desktop named MBR.dat(or similir) do not delete this for now it is a actual backup of the MBR(master boot record).



Please read and follow these instructions carefully. We do not want it to fix anything yet (if found), we need to see a report first.

Download TDSSKiller.exe and save it to your desktop

• Execute TDSSKiller.exe by doubleclicking on it.
• Klick Change parameters, check Detect TDLFS file system, click OK.
• Press Start Scan
  
• If Malicious objects are found, do NOT select Cure. Change the action to Skip, and save the log.
  
• 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.

OK, I got both files on a stick, and tried scanning the files while booting with the OTLPE cd, this did not work well, as it keeps scanning Drive X and not C

TDSSKiller didn't even create the log, as I think Drive X: is full (Virtual drive)

When I boot into Safe Mode the virus is active again with the white screen, so I can really do anything in Windows on the C:

I am assuming that the virus is the file \AppData\Roaming\ArchiverforWin.exe

Should I maybe move/zip this file so the virus does not start again, and then try booting in Windows on C: ?

Malwarebytes does not work in Ubuntu, and booting with OTLPE also does not run the Program right... I even tried to install it again in the PE Windows.. also does not work.

The big problem is really that I can't boot Windows normally, so I can't scan anything until I fix this

No!

Do the following:



Scan with FRST


To run FRST on Vista and Windows7:

• For x32 (x86) bit systems download Farbar Recovery Scan Tool and save it to a flash drive.
• For x64 bit systems download Farbar Recovery Scan Tool x64 and save it to a flash drive.

Plug the flashdrive into the infected PC.

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.
• Choose your 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.

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.
• Choose your 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

• 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.exe (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.

As requested, the Log file from FRST

Fix with FRST

• Open notepad (Start =>All Programs => Accessories => Notepad).
• Please copy the entire contents of the code box below.
  (To do this highlight the contents of the box, right click on it and select copy. Right-click in the open notepad and select Paste). Save it on the flashdrive as fixlist.txt
  
  
  Code:

  ---

  HKLM-x32\...\Run: [B64Fu7wxCKTba7x] D:\Users\Volker\AppData\Roaming\ArchiverforWin.exe
HKLM-x32\...\Winlogon: [Userinit] D:\Users\Volker\AppData\Roaming\ArchiverforWin.exe
HKLM-x32\...\Winlogon: [Shell] D:\Users\Volker\AppData\Roaming\ArchiverforWin.exe
D:\Users\Volker\AppData\Roaming\ArchiverforWin.exe

  ---

  
  NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system
  
  Now please enter System Recovery Options again.
  
  
• Run frst.exe (on 64bit, run frst64.exe) and press the Fix button just once and wait.
• The tool will make a log on the flashdrive (Fixlog.txt) please post it to your reply.

Start the computer in normal mode.




Scan with aswMBR

Please download aswMBR.exe to your desktop.

• Double-click the aswMBR.exe to run it
• When prompted with The application can use the Avast! Free Antivirus for scanning >> select No
• Now click on the Scan button to start scan
• On completion of the scan click Save Log, save it to your desktop and post the contents in your next reply

Note: There will also be a file on your desktop named MBR.dat(or similir) do not delete this for now it is a actual backup of the MBR(master boot record).



Please read and follow these instructions carefully. We do not want it to fix anything yet (if found), we need to see a report first.

Download TDSSKiller.exe and save it to your desktop

• Execute TDSSKiller.exe by doubleclicking on it.
• Klick Change parameters, check Detect TDLFS file system, click OK.
• Press Start Scan
  
• If Malicious objects are found, do NOT select Cure. Change the action to Skip, and save the log.
  
• 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.

This is how far I get, and then I have the white screen again, so somehow this is not working with FRST :confused:

Any other idea ?

After booting in Ubuntu again I can confirm that the exe files is still there in the Roaming folder, although the log file said not found ...
The tool is looking for the file on the wrong Drive, it must be D: not C: although the fixlist.txt actually has the D: specified..

You have to boot into the recovery options where you did the scan.
Due to the fact that windows is not loaded then there will be no white screen!



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.
• Choose your 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.

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.
• Choose your 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

Then start frst64.exe from USB device and click fix!

You´re right!

Start Ubuntu and delete the File.

Then boot Windows and do the aswMBR and the TDSS-Killer-Scan!

:)

OK.. so it seems the virus is gone, I deleted the file in the rescue command prompt manually that was in the Roaming directory of the user Volker.

Are we done ?

Combofix

Combofix darf ausschließlich ausgeführt werden, wenn dies von einem Team Mitglied angewiesen wurde!
Es sollte nie auf eigene Initiative hin ausgeführt werden! Eine falsche Benutzung kann ernsthafte Computerprobleme nach sich ziehen und eine Bereinigung der Infektion noch erschweren.

Downloade dir bitte Combofix von einem dieser Downloadspiegel

Link 1
Link 2


WICHTIG - Speichere Combofix auf deinem Desktop

• Deaktiviere bitte all deine Anti Viren sowie Anti Malware/Spyware Scanner. Diese können Combofix bei der Arbeit stören.

Starte die Combofix.exe und folge den Anweisungen auf dem Bildschirm.

Wenn Combofix fertig ist, wird es eine Logfile erstellen. Bitte poste die C:\Combofix.txt in deiner nächsten Antwort.


Hinweis: Solltest du nach dem Neustart folgende Fehlermeldung erhalten
starte den Rechner einfach neu. Dies sollte das Problem beheben.