[Active] Netbt.sys (Backdoor.Tidserv!inf)

By Milbanke
Aug 4, 2010
  1. I have recently ran a scan with Norton Antivirus and the results have shown that Ive got this threat. Norton said that it has to be manually removed, Ive tried to follow all the steps in the 8 step virus/malware removal instructions but am new to all of this. Could somone please help as I havent got a scooby what I'm doing.

    Please see below for the Logs requested, hope this helps!

    Thanks in advance

    Attached Files:

  2. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    Welcome aboard [​IMG]

    Please download ComboFix from Here or Here to your Desktop.

    **Note: In the event you already have Combofix, this is a new version that I need you to download. It is important that it is saved directly to your desktop**
    1. Please, never rename Combofix unless instructed.
    2. Close any open browsers.
    3. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
      • Very Important! Temporarily disable your anti-virus, script blocking and any anti-malware real-time protection before performing a scan. They can interfere with ComboFix or remove some of its embedded files which may cause "unpredictable results".
      • Click on this link to see a list of programs that should be disabled. The list is not all inclusive. If yours is not listed and you don't know how to disable it, please ask.
      NOTE1. If Combofix asks you to install Recovery Console, please allow it.
      NOTE 2. If Combofix asks you to update the program, always do so.
      • Close any open browsers.
      • WARNING: Combofix will disconnect your machine from the Internet as soon as it starts
      • Please do not attempt to re-connect your machine back to the Internet until Combofix has completely finished.
      • If there is no internet connection after running Combofix, then restart your computer to restore back your connection.
    4. Double click on combofix.exe & follow the prompts.
    5. When finished, it will produce a report for you.
    6. Please post the "C:\ComboFix.txt"
    **Note: Do not mouseclick combofix's window while it's running. That may cause it to stall**

    Make sure, you re-enable your security programs, when you're done with Combofix.

    DO NOT make any other changes to your computer (like installing programs, using other cleaning tools, etc.), until it's officially declared clean!!!
  3. Milbanke

    Milbanke TS Rookie Topic Starter

    Hi Broni

    sorry it's taken so long to get back to you, I downloaded & ran combofix early this morning but nothing had happened after 3 hours so i had to go to work, when I came back tonight still nothing had happened so I closed down pc & ran again.

    Hope that was ok to do, please see attached combofix log.



    Attached Files:

  4. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    You did just fine :)

    Is Norton still complaining?

    I strongly recommend, you uninstall RegVac Registry Cleaner. Registry cleaners are not recommended and here is why:


    1. Please open Notepad
    • Click Start , then Run
    • Type notepad .exe in the Run Box.

    2. Now copy/paste the entire content of the codebox below into the Notepad window:

    c:\documents and settings\Chris Milbanke\Local Settings\Application Data\ugpuhjbuv
    uInternet Settings,ProxyOverride = <local>
    uInternet Settings,ProxyServer = http=
    [HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring]
    [HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring\SymantecAntiVirus]
    [HKEY_LOCAL_MACHINE\software\microsoft\security center\Monitoring\SymantecFirewall]

    3. Save the above as CFScript.txt

    4. Close/disable all anti virus and anti malware programs again, so they do not interfere with the running of ComboFix.

    5. Then drag the CFScript.txt into ComboFix.exe as depicted in the animation below. This will start ComboFix again.


    6. After reboot, (in case it asks to reboot), please post the following reports/logs into your next reply:
    • Combofix.txt
  5. Milbanke

    Milbanke TS Rookie Topic Starter

    Broni Nortons not complaining, but it's keep flagging up high cpu usage in system 32 - whatever that means I dunno.

    I've ran combofix again like you asked, it asked me if I wanted to update to a newer version so I did. Hope that was ok and hasnt messed up the scan, attached is the log for you.


    Attached Files:

  6. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    Can you give me more details?

    Did you get rid of RegVac Registry Cleaner?


    Uninstall Combofix:
    Go Start > Run [Vista users, go Start>"Start search"]
    Type in:
    Combofix /Uninstall
    Note the space between the "Combofix" and the "/Uninstall"
    Click OK (Vista users - press Enter).
    Restart computer.


    Download OTL to your Desktop.

    * Double click on the icon to run it. Make sure all other windows are closed and to let it run uninterrupted.
    * Under the Custom Scan box paste this in:

    drivers32 /all
    %systemroot%\*. /mp /s
    %systemroot%\system32\*.dll /lockedfiles
    %systemroot%\Tasks\*.job /lockedfiles
    %systemroot%\system32\user32.dll /md5
    %systemroot%\system32\ws2_32.dll /md5
    %systemroot%\system32\ws2help.dll /md5
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\Results\Install|LastSuccessTime /rs

    * Click the Quick Scan button. Do not change any settings unless otherwise told to do so. The scan wont take long.
    • When the scan completes, it will open two notepad windows: OTL.txt and Extras.txt. These are saved in the same location as OTL.
    • Please copy (Edit->Select All, Edit->Copy) the contents of these files, one at a time, and post them back here.
  7. Milbanke

    Milbanke TS Rookie Topic Starter

    Got rid of Regvac, cant give any more details of norton flaggin up PCU usage as hasnt occured again as yet, if it does I'll get details for you.

    Please see OTL scan results below, I've had to attach as a log for each as the message board said there were to many characters & it would have to be shortened.



    Attached Files:

  8. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    Your computer would greatly benefit from adding another 512MB of RAM.

    Update your Java version here:

    Note 1: UNCHECK any pre-checked toolbar and/or software offered with the Java update. The pre-checked toolbars/software are not part of the Java update.

    Note 2: The Java Quick Starter (JQS.exe) adds a service to improve the initial startup time of Java applets and applications. If you don't want to run another extra service, go to Start > Control Panel > Java > Advanced > Miscellaneous and uncheck the box for Java Quick Starter. Click OK and restart your computer.

    Now, we need to remove old Java version and its remnants...

    Download JavaRa to your desktop and unzip it to its own folder
    • Run JavaRa.exe (Vista users! Right click on JavaRa.exe, click Run As Administrator), pick the language of your choice and click Select. Then click Remove Older Versions.
    • Accept any prompts.


    Run OTL
    • Under the Custom Scans/Fixes box at the bottom, paste in the following

      O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - No CLSID value found.
      O3 - HKCU\..\Toolbar\ShellBrowser: (no name) - {2318C2B1-4965-11D4-9B18-009027A5CD4F} - No CLSID value found.
      O3 - HKCU\..\Toolbar\WebBrowser: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - No CLSID value found.
      O3 - HKCU\..\Toolbar\WebBrowser: (no name) - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - No CLSID value found.
      O3 - HKCU\..\Toolbar\WebBrowser: (no name) - {EE5D279F-081B-4404-994D-C6B60AAEBA6D} - No CLSID value found.
      O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} (Reg Error: Key error.)
      O16 - DPF: {8FFBE65D-2C9C-4669-84BD-5829DC0B603C} (Reg Error: Key error.)
      O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389},0,0,23/ (Reg Error: Key error.)
      O16 - DPF: {CAFEEFAC-0014-0000-0000-ABCDEFFEDCBA} (Reg Error: Key error.)
      O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} (Reg Error: Key error.)
      O16 - DPF: Microsoft XML Parser for Java file://C:\WINDOWS\Java\classes\ (Reg Error: Key error.)
    • Then click the Run Fix button at the top
    • Let the program run unhindered, reboot the PC when it is done
    • You will get a log that shows the results of the fix. Please post it.
    • Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.
  9. Milbanke

    Milbanke TS Rookie Topic Starter

    Computer is quite old. Might be a stupid question but is RAM easy to buy & insall, as I said not very good at this?

    Did as requested re Java & OTL, although wasnt prompted to any toolbar and/or software offered with the Java update, so hope i've not messed anything up

    attached is the 2 logs from OTL


    Attached Files:

  10. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    There are no stupid questions :)
    Go here:, select your computer brand and model and see what the prices are.
    Replacing/adding RAM is very easy task :)

    Now...last scans...

    1. Download Security Check from HERE, and save it to your Desktop.
    • Double-click SecurityCheck.exe
    • Follow the onscreen instructions inside of the black box.
    • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

    2. Download Temp File Cleaner (TFC)
    • Double click on TFC.exe to run the program.
    • Click on Start button to begin cleaning process.
    • TFC will close all running programs, and it may ask you to restart computer.

    3. Go to Kaspersky website and perform an online antivirus scan.

    • Disable your active antivirus program.
    • Read through the requirements and privacy statement and click on Accept button.
    • It will start downloading and installing the scanner and virus definitions. You will be prompted to install an application from Kaspersky. Click Run.
    • When the downloads have finished, click on Settings.
    • Make sure these boxes are checked (ticked). If they are not, please tick them and click on the Save button:
      • Spyware, Adware, Dialers, and other potentially dangerous programs
      • Archives
      • Mail databases
    • Click on My Computer under Scan.
    • Once the scan is complete, it will display the results. Click on View Scan Report.
    • You will see a list of infected items there. Click on Save Report As....
    • Save this report to a convenient place. Change the Files of type to Text file (.txt) before clicking on the Save button. Then post it here.
  11. Milbanke

    Milbanke TS Rookie Topic Starter

    Hi Broni

    Thanks for the RAM link, i'll be having a look over this at the weekend.

    Please see attached log's for the latest scans.


    Attached Files:

  12. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    Update Adobe Reader

    You can download it from
    After installing the latest Adobe Reader, uninstall all previous versions.
    Note. If you already have Adobe Photoshop® Album Starter Edition installed or do not wish to have it installed UNcheck the box which says Also Download Adobe Photoshop® Album Starter Edition.

    Alternatively, you can uninstall Adobe Reader (33.5 MB), download and install Foxit PDF Reader(3.5MB) from HERE.
    It's a much smaller file to download and uses a lot less resources than Adobe Reader.
    Note: When installing FoxitReader, make sure to UN-check any pre-checked toolbar, or other garbage.


    OTL Clean-Up
    Clean up with OTL:

    * Double-click OTL.exe to start the program.
    * Close all other programs apart from OTL as this step will require a reboot
    * On the OTL main screen, press the CLEANUP button
    * Say Yes to the prompt and then allow the program to reboot your computer.

    If you still have any tools or logs leftover on your computer you can go ahead and delete those off of your computer now.


    Your computer is clean [​IMG]

    1. We need to reset system restore to prevent your computer from being accidentally reinfected by using some old restore point(s). We'll create fresh, clean restore point.

    Turn off System Restore:

    - Windows XP:
    1. Click Start.
    2. Right-click the My Computer icon, and then click Properties.
    3. Click the System Restore tab.
    4. Check "Turn off System Restore".
    5. Click Apply.
    6. When turning off System Restore, the existing restore points will be deleted. Click Yes to do this.
    7. Click OK.
    - Windows Vista and 7:
    1. Click Start.
    2. Right-click the Computer icon, and then click Properties.
    3. Click on System Protection under the Tasks column on the left side
    4. Click on Continue on the "User Account Control" window that pops up
    5. Under the System Protection tab, find Available Disks
    6. Uncheck the box for any drive you wish to disable system restore on (in most cases, drive "C:")
    7. When turning off System Restore, the existing restore points will be deleted. Click "Turn System Restore Off" on the popup window to do this.
    8. Click OK

    2. Restart computer.

    3. Turn System Restore on.

    4. Make sure, Windows Updates are current.

    5. If any Trojan was listed among your infection(s), make sure, you change all of your on-line important passwords (bank account(s), secured web sites, etc.) immediately!

    6. Download, and install WOT (Web OF Trust): It'll warn you (in most cases) about dangerous web sites.

    7. Run Malwarebytes "Quick scan" once in a while to assure safety of your computer.

    8. Run Temporary File Cleaner (TFC) weekly.

    9. Download and install Secunia Personal Software Inspector (PSI). The Secunia PSI is a FREE security tool designed to detect vulnerable and out-dated programs and plug-ins which expose your PC to attacks. Run it weekly.

    10. Run defrag at your convenience.

    11. Read How did I get infected?, With steps so it does not happen again!:

    12. Please, let me know, how is your computer doing.
  13. Broni

    Broni Malware Annihilator Posts: 52,794   +343

    The issue appears to be resolved.
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