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Virus problem keeps coming back---help


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#1 jeffw11

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Posted 12 August 2010 - 06:19 AM

Working on a friends computer that had some viruses. I ran malwarebytes and that cleaned out about 15 problems. Gave her back her computer and the next day she had the same problem. Not sure what is going on but when the virus kicks in, it also changes the proxy setting so that she cant use the internet. Any ideas?

Thank you.

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#2 quietman7

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Posted 12 August 2010 - 10:49 AM

Some infections will alter the Proxy settings in Internet Explorer which can affect your ability to browse, update or download tools required for disinfection. Check/reset the Proxy Settings as follows:

Press the WINKEY + R keys on your keyboard or go to Posted Image > Run..., and in the Open dialog box, type: inetcpl.cpl
Click OK or press Enter.
  • Click the LAN Settings... button and uncheck Use a proxy server for your LAN
    or change the settings to the proxy you normally use if you previously reconfigured it.
  • Remove any unknown addresses from the Address box. 80 is the default Port so it does not have to be changed.
  • Click Ok and then click Ok again.
  • Close Internet Explorer and restart the computer.
If using Firefox do this:
  • Open Firefox, click Tools > Options > Advanced and click the Network Tab.
  • Under the Connection section click on the Settings... button.
  • Under Configure Proxies to Access the Internet, check No proxy. This is the default option if you don't use a proxy.
  • Click Ok and then click OK again.
  • Close Firefox and restart the computer.
For other browsers, please refer to How to configure browser proxy settings.

Please download the TDSS Rootkit Removing Tool (TDSSKiller.zip) and save it to your Desktop. <-Important!!!
Be sure to print out and follow all instructions for performing a scan or refer to these instructions with screenshots.
  • Extract (unzip) the file to your desktop and make sure TDSSKiller.exe (the contents of the zipped file) is on the Desktop itself, not within a folder on the Desktop. Vista/Windows 7 users refer to these instructions.
  • If you don't have an extracting program, you can download TDSSKiller.exe and use that instead.
  • Double-click on TDSSKiller.exe to run the tool for known TDSS variants.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • When the program opens, click the Start Scan button.
  • Do not use the computer during the scan
  • If the scan completes with nothing found, click Close to exit.
  • If malicious objects are found, they will show in the Scan results - Select action for found objects and offer three options.
  • Ensure Cure is selected, then click Continue > Reboot now to finish the cleaning process.
    Note: If 'Suspicious' objects are detected, Skip will be the default selection.
  • A log file named TDSSKiller_version_date_time_log.txt (i.e. TDSSKiller.2.4.0.0_27.07.2010_09.o7.26_log.txt) will be created and saved to the root directory (usually Local Disk C:).
  • Copy and paste the contents of that file in your next reply.
-- If TDSSKiller does not run, try renaming it. To do this, right-click on TDSSKiller.exe, select Rename and give it a random name with the .com file extension (i.e. 123abc.com). If you do not see the file extension, please refer to How to change the file extension. In some cases it may be necessary to redownload TDSSKiller and randomly rename it before downloading and saving to the computer.
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#3 jeffw11

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Posted 12 August 2010 - 05:46 PM

Already got the internet going again. Appreciate the info though. Ran the TDSSKiller and it found nothing.

Any reason why this computer got some viruses within a day of going through it? Is there any other program to run to check to see if there are some traces still in the computer that need to get cleaned up so this doesn't keep happening?

Thanks.

#4 quietman7

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Posted 12 August 2010 - 05:48 PM

Try doing an online scan to see if it finds anything else (i.e. remanants) that the other scans may have missed.

Please perform a scan with Eset Online Antiivirus Scanner.
This scan requires Internet Explorer to work. Vista/Windows 7 users need to run Internet Explorer as Administrator.
To do this, right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run As Administrator from the context menu.
  • Click the green Posted Image button.
  • Read the End User License Agreement and check the box:
  • Check Posted Image.
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Check Remove found threats and Scan potentially unwanted applications. (If given the option, choose "Quarantine" instead of delete.)
  • Click the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer.
  • If offered the option to get information or buy software at any point, just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop as ESETScan.txt.
  • Push the Posted Image button, then Finish.
  • Copy and paste the contents of ESETScan.txt in your next reply.
Note: A log.txt file will also be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
If you did not save the ESETScan log, click Posted Image > Run..., then type or copy and paste everything in the code box below into the Open dialogue box:

C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and the scan results will open in Notepad.
  • Copy and paste the contents of log.txt in your next reply.
-- Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.
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#5 jeffw11

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Posted 12 August 2010 - 09:07 PM

here is the text file from the online scan:

C:\SWSetup\AOLIMS\setup.exe probably a variant of Win32/Agent.HZHBURL trojan cleaned by deleting - quarantined
C:\Users\LoAnnBurt\AppData\Local\Temp\plugtmp-53\plugin-e_npgj.pdf JS/Exploit.Pdfka.OAF trojan cleaned by deleting - quarantined
C:\Users\LoAnnBurt\AppData\Local\Temp\plugtmp-53\plugin-Notes2.pdf JS/Exploit.Pdfka.OAH trojan cleaned by deleting - quarantined
C:\Users\LoAnnBurt\AppData\Local\Temp\plugtmp-53\plugin-Notes5.pdf JS/Exploit.Pdfka.OAH trojan cleaned by deleting - quarantined


Hows this looking?

Thanks.

#6 quietman7

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Posted 13 August 2010 - 06:22 AM

How is your computer running now? Are there any more signs of infection, strange audio ads, bogus security alerts or browser redirects?
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#7 jeffw11

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Posted 13 August 2010 - 06:43 AM

it seems to be running fine but it seemed like that before you had me run the online check and that program found 4 more problems.

I'll probably give her back her computer this evening and we will see if she has any more problems.

Any last minute suggestions or do you think we may be good.

Appreciate your help,
Jeff

#8 quietman7

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Posted 13 August 2010 - 06:51 AM

If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Posted Image > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Posted Image > Run... and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista and Windows 7 users can refer to these links:
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