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Virus


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#1 ovnttim

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Posted 07 February 2009 - 11:14 PM

I'm working on a friends Laptop that had the WIN32BackDoor.TDSS virus.Windows XP Home OS.I downloaded COMBOFIX
and ran it.Then ran GMER.Seems to be fine know.I saved the GMER Scan Report can I sent it to be looked at?Thank You

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#2 boopme

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Posted 08 February 2009 - 12:20 AM

Yes you can post Gmer log. Also please read this and then do an MBam scan.
A backdoor Trojan can allow an attacker to
gain control of the system, log keystrokes, steal passwords, access personal
data, send malevolent outgoing traffic, and close the security warning
messages displayed by some anti-virus and security programs.

I would advise you to disconnect this PC from the Internet, and then go to
a known clean computer and change any passwords or security information held
on the infected computer. In particular, check whatever relates to online
banking financial transactions, shopping, credit cards, or sensitive
personal information. It is also wise to contact your financial institutions
to apprise them of your situation.

We will do our best to clean the computer of any infections seen on the log.
However, because of the nature of this Trojan, I cannot offer a total
guarantee that there are no remnants left in the system, or that the
computer will be trustworthy.

Many security experts believe that once infected with this type of Trojan,
the best course of action is to reformat and reinstall the Operating System.
Making this decision is based on what the computer is used for, and what
information can be accessed from it.


If you have Spybot installed temporarily disable it.
Next run ATF:
Please download ATF Cleaner by Atribune & save it to your desktop.
  • 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 browser click Firefox 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.
  • If you use Opera browser click Opera 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.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".


Next run MBAM:
Please download Malwarebytes Anti-Malware (v1.32) and save it to your desktop.
alternate download link 1
alternate download link 2
If you have a previous version of MBAM, remove it via Add/Remove Programs and download a fresh copy.
  • 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 updates, manually download them from here and just double-click on mbam-rules.exe to install. Alternatively, you can update through MBAM's interface from a clean computer, copy the definitions (rules.ref) located in C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware from that system to a usb stick or CD and then copy it to the infected machine.
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 and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. 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 after scanning with MBAM. Please temporarily disable such programs or permit them to allow the changes.
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 ovnttim

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Posted 08 February 2009 - 07:56 AM

GMER 1.0.14.14536 - http://www.gmer.net
Rootkit scan 2009-02-07 22:30:09
Windows 5.1.2600 Service Pack 3


---- System - GMER 1.0.14 ----

SSDT Lbd.sys (Boot Driver/Lavasoft AB) ZwCreateKey [0xF877687E]
SSDT Lbd.sys (Boot Driver/Lavasoft AB) ZwSetValueKey [0xF8776C10]

---- User IAT/EAT - GMER 1.0.14 ----

IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\Explorer.EXE [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\ADVAPI32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\RPCRT4.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\Secur32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\GDI32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\USER32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\ole32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\SHLWAPI.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\CRYPT32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\NETAPI32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\WININET.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\SHELL32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\USERENV.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\iphlpapi.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\WS2_32.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)
IAT C:\WINNT\Explorer.EXE[884] @ C:\WINNT\system32\WS2HELP.dll [KERNEL32.dll!GetProcAddress] [5CB77774] C:\WINNT\system32\ShimEng.dll (Shim Engine DLL/Microsoft Corporation)

---- Devices - GMER 1.0.14 ----

AttachedDevice \Driver\Tcpip \Device\Ip avgtdix.sys (AVG Network connection watcher/AVG Technologies CZ, s.r.o.)
AttachedDevice \Driver\Tcpip \Device\Ip ntoskrnl.exe (NT Kernel & System/Microsoft Corporation)
AttachedDevice \Driver\Kbdclass \Device\KeyboardClass0 SynTP.sys (Synaptics Touchpad Driver/Synaptics, Inc.)
AttachedDevice \Driver\Kbdclass \Device\KeyboardClass0 mouclass.sys (Mouse Class Driver/Microsoft Corporation)
AttachedDevice \Driver\Kbdclass \Device\KeyboardClass1 SynTP.sys (Synaptics Touchpad Driver/Synaptics, Inc.)
AttachedDevice \Driver\Tcpip \Device\Tcp avgtdix.sys (AVG Network connection watcher/AVG Technologies CZ, s.r.o.)
AttachedDevice \Driver\Tcpip \Device\Tcp ntoskrnl.exe (NT Kernel & System/Microsoft Corporation)
AttachedDevice \Driver\Tcpip \Device\Tcp Lbd.sys (Boot Driver/Lavasoft AB)
AttachedDevice \Driver\Tcpip \Device\Udp avgtdix.sys (AVG Network connection watcher/AVG Technologies CZ, s.r.o.)
AttachedDevice \Driver\Tcpip \Device\Udp ntoskrnl.exe (NT Kernel & System/Microsoft Corporation)
AttachedDevice \Driver\Tcpip \Device\Udp Lbd.sys (Boot Driver/Lavasoft AB)
AttachedDevice \Driver\Tcpip \Device\RawIp avgtdix.sys (AVG Network connection watcher/AVG Technologies CZ, s.r.o.)
AttachedDevice \Driver\Tcpip \Device\RawIp ntoskrnl.exe (NT Kernel & System/Microsoft Corporation)
AttachedDevice \Driver\Tcpip \Device\RawIp Lbd.sys (Boot Driver/Lavasoft AB)

---- Registry - GMER 1.0.14 ----

Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys@start 1
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys@type 1
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys@imagepath \systemroot\system32\drivers\TDSSpxfe.sys
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys@group file system
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@TDSSserv \systemroot\system32\drivers\TDSSpxfe.sys
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@TDSSl \systemroot\system32\TDSSoitu.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdssservers \systemroot\system32\TDSSmtpe.dat
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdssmain \systemroot\system32\TDSSnrxx.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdsslog \systemroot\system32\TDSSyoqu.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdssadw \systemroot\system32\TDSSnpur.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdssinit \systemroot\system32\TDSSdxgp.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdssurls \systemroot\system32\TDSSnmxh.log
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdsspanels \systemroot\system32\TDSSsahc.dll
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@tdsserrors \systemroot\system32\TDSSihys.log
Reg HKLM\SYSTEM\ControlSet002\Services\TDSSserv.sys\modules@TDSSproc \systemroot\system32\TDSSkkao.log

---- EOF - GMER 1.0.14 ---- Here is my GMER Report Thanks

#4 boopme

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Posted 08 February 2009 - 12:22 PM

Hello ,first is an unfortunate warning on TDDS..
One or more of the identified infections is a backdoor trojan.

This allows hackers to remotely control your computer, steal critical system information and download and execute files.

I would counsel you to disconnect this PC from the Internet immediately. If you do any banking or other financial transactions on the PC or if it should contain any other sensitive information, please get to a known clean computer and change all passwords where applicable, and it would be wise to contact those same financial institutions to apprise them of your situation.

Though the trojan has been identified and can be killed, because of it's backdoor functionality, your PC is very likely compromised and there is no way to be sure your computer can ever again be trusted. Many experts in the security community believe that once infected with this type of trojan, the best course of action would be a reformat and reinstall of the OS. Please read these for more information:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
When Should I Format, How Should I Reinstall

We can still clean this machine but I can't guarantee that it will be 100% secure afterwards. Let me know what you decide to do.


If you continue with cleaning run the MBAM instructions I posted earlier.
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 ovnttim

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Posted 08 February 2009 - 08:15 PM

Thanks for your help. I'll get the laptop back and sent the MBAM Report. Thanks again

#6 boopme

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Posted 09 February 2009 - 08:48 PM

No problem. I'll watch for it..
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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