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Unknown file ("wtdmiwte.nzi") in downloaded items - malware?

by Bsslrd / July 9, 2009 7:50 AM PDT

Hi all,

after surfing the web I found a strange file ("wtdmiwte.nzi") had made its way into my downloaded items folder. A minute later it had disappeared, but showed up on my 'recently opened items list'.

I've done a Google search on this file and extension but couldn't find anything.

I've no clue how the file got there or what it is...?

I'm worrying it might be malware, but don't want to format my computer if it's not necessary. It would be great if someone could tell me what this file was...

Thanks!

Bas.

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I would suggest.......

Please download Malwarebytes Anti-Malware (v1.33) 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:
o Update Malwarebytes' Anti-Malware
o 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.

Notes: 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. Click this link to see a list of programs that should be disabled.



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 and unzip them from here.)
* Under "Configuration and Preferences", 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".

Do the scans find "anything" ?

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Will scan later this evening!
by Bsslrd / July 10, 2009 2:47 AM PDT
In reply to: I would suggest.......
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O.k.
by Marianna Schmudlach / July 10, 2009 3:15 AM PDT

Hi Bas,

before you scan with MBAM and SAS - pls. disable Spybot's Tea-timer.


Disable Teatimer
First step:

* Right-click the Spybot Icon in the System Tray (looks like a blue/white calendar with a padlock symbol)
* If you have the new version 1.5, Click once on Resident Protection, then Right click the Spybot icon again and make sure Resident Protection is now Unchecked. The Spybot icon in the System tray should now be now colorless.
* If you have Version 1.4, Click on Exit Spybot S&D Resident

Second step, For Either Version :

* Open Spybot S&D
* Click Mode, choose Advanced Mode
* Go To the bottom of the Vertical Panel on the Left, Click Tools
* then, also in left panel, click Resident shows a red/white shield.
* If your firewall raises a question, say OK
* In the Resident protection status frame, Uncheck the box labeled Resident "Tea-Timer"(Protection of over-all system settings) active
* OK any prompts.
* Use File, Exit to terminate Spybot
* Reboot your machine for the changes to take effect.

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Done, both come up clean
by Bsslrd / July 10, 2009 6:28 PM PDT
In reply to: O.k.

Hi Marianna,

I ran both scans, and both come up clean. Does this mean I am 100% free of any potential threats?

Thanks,

Bas.

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To be sure, I would ....
by Marianna Schmudlach / July 11, 2009 12:17 AM PDT

Hi Bas,


....suggest ONE more scan:


Run the F-Secure Online Scanner

http://support.f-secure.com/enu/home/ols.shtml

Note: This Scanner is for Internet Explorer Only!

*Click on Online Services and then Online Scanner
*Accept the License Agreement.
*Once the ActiveX installs, click Full System Scan
*Once the download completes,the scan will begin automatically.
* The scan will take some time to finish,so please be patient.
*When the scan completes, click the Automatic cleaning (recommended) button.


If F-secure also comes up clean, I don't think you are having any problems.

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All done :-)
by Bsslrd / July 12, 2009 4:28 AM PDT

Hi Marianna,

done the check and came up clean. Happy

Many thanks for your help! Happy

Grtz,

Bas.

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Great Job :)
by Marianna Schmudlach / July 12, 2009 6:10 AM PDT
In reply to: All done :-)

Hi Bas,

You Are Very Welcome !

Happy SAFE Computing Happy

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