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lsass.exe - I have two - one in system32...thats ok. but ...


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#1 SpecStudio

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Posted 05 September 2010 - 09:16 PM

I think the other one is a worm, or some sort of malware. I am not really sure how to actually disinfect this. Do I just delete the file and it will be gone, or do I need to disinfect it to clean out all the footprints it may have made. I have kaspersky 2011 Internet Security and it is not detecting this for some reason...I have had nothing but trouble with Kaspersky since I got it. It seems to eat up my CPU, and it makes it difficult to know what to do after an infected file has been detected...hard to tell what to do to get the junk off the computer for good. Kaspersky is supposed to be one of the best, but I'm not a very happy customer. It has hogged tied my computer's resources and made it perform horribly. Thanks to anybody who knows what to do with this lsass.exe file that I believe is owning my computer at the moment. Greatly appreciated...and I'm also aware that this is a very busy forum, so I understand if there is a delay. Thanks Bleeping Computer!

Kind Regards,
Collin

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#2 boopme

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Posted 05 September 2010 - 10:42 PM

Hello Collin and welcome. Is this a 64 bit Win 7 system?

Let's first run a scan here and se if it just fixes it for you,
If you have any difficulty installing this you may have to turn KIS off for this.


Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware (v1.46) and save it to your desktop.
Before you save it rename it to say zztoy.exe


alternate download link 1
alternate download link 2
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. 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.
  • 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 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. 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.
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