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Any tests to see if this network problem comes from an infection?


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#1 Domster

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Posted 20 June 2009 - 07:48 AM

Hello everyone,

This is kind of a weird problem here. My laptop, with Atheros AR5006EXS Network Adapter, can't get an IP from any (generalization, I've tried two networks with different routers) password-protected wireless network. It does connect to networks that don't have a password (tried a few linksys laying around) and wired networks work aswell. Also, my smartphone can connect to at least one of the two password-protected networks (didn't try the other one yet) and there are wireless printers on both networks that can connect fine.

Now the weird part is that my PC has the same problem (with a different network adaptor). So it blows away my idea that the laptop is the problem. Well, that or I have two problems. I tried de/replugging the router and nothing changed. When I repair the connection it blocks on the renewing IP step.

Could it be a virus/malware that spread on my two computers?

What can I give you to help you help me? HJT logs?

Thank you for your time,

Dominic

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#2 Domster

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Posted 23 June 2009 - 08:04 AM

Hello,

My computer can't connect to any password protected networks (that I do have the passwords for). Is there some kind of test to see if the problem comes from a virus/malware problem?

Thank you,

Dominic

P.S.: I'm aware that I already mentioned this problem here ( http://www.bleepingcomputer.com/forums/topic235330.html ), but I thought it would be ok to make a second thread since this one is more about infections than networking. Sorry if it bothers the administration!

#3 Elise

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Posted 25 June 2009 - 05:57 AM

Hello Dominic, and :thumbsup: to BleepingComputer!

First of all, I will request your other topic to be merged with this one. It is not said that these problems are related, but this forum is exactly to determine whether your computer is infected. It would make no sense having two people to work at your problems without knowing that, possible steps might interfere with each other.

Please follow the steps below and post the results in your next reply.

MALWAREBYTES ANTIMALWARE
-------------------------------------------
Please download Malwarebytes Anti-Malware and save it to your desktop.
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 Full 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.
If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files.
  • Right-click on mbam.exe, rename it to myscan.exe.
  • Double-click on myscan.exe to launch the program.
  • If that did not work, then try renaming and change the .exe extension in the same way as noted above.
  • Double-click on myscan.scr (or whatever extension you renamed it) to launch the program.
If using Windows Vista, refer to How to Change a File Extension in Windows Vista.

regards, Elise


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#4 Domster

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Posted 25 June 2009 - 08:36 AM

Updating the software didn't work, but it might be because my access to Internet is at work and they're blocking some ports. Windows update is having issues as well.

But anyway, I scanned with this:
Malwarebytes' Anti-Malware 1.38
Database version: 2297
Windows 5.1.2600 Service Pack 3

and there was absolutely nothing infected. However, the owner of the building where I live says they're having Internet problems (the service guys are coming tomorrow) so I'll wait until that is solved before using any more of your time. Although their problem doesn't explain why my wireless connection doesn't work elsewhere...

Thanks! I'll post here again to give update on the situation.

#5 Elise

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Posted 25 June 2009 - 09:25 AM

Okay, thanks for posting back! I will keep an eye on this topic, in case you suspect other problems, just post back here.

regards, Elise


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