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Is my computer infected?


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#1 alexander59

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Posted 10 August 2009 - 10:16 AM

Hi, my name is Alex, and I am having some computer problems. A while ago, I had such a nasty virus attack that I had to resort to the Geek Squad removing it. This, of course, made me paranoid about everything regarding malware, and now that this new event has occurred, I am afraid of a new infection. So here is what is happening...

I was on the internet, when all of a sudden, my computer shuts down and re-boots up by itself. I think, okay maybe I hit the power switch, but when I logged on, I got the following message:

Windows cannot find 'logon.exe'. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.

The window gives the option to click "OK" or "X" out of it.

I decided to run a virus scan with Panda Cloud, but it would scan only a few hundred files before "completing". I uninstalled that, and put AVG 8.5 on, and it ran just fine (getting rid of some tracking cookies, etc.). My other security programs (Spybot S & D and Malwarebytes Anti-Malware) detected no risks, yet I still get the message upon logging on.

So, do I have to worry about an infection? Or is this just a windows error that can be fixed otherwise?
Thanks

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#2 Elise

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Posted 10 August 2009 - 10:57 AM

Hey Alex, and :thumbsup: to BleepingComputer!

Did you get that warning only one time? Or everytime you start your computer?

ATF-CLEANER
------------------
Please download ATF Cleaner by Atribune. (This program is for XP and Windows 2000 only)Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.
If you use Firefox browserClick Firefox at the top and choose: Select All
Click the Empty Selected button.
NOTE: If you would like to keep your saved passwords, please click No at the prompt.
If you use Opera browserClick Opera at the top and choose: Select All
Click the Empty Selected button.
NOTE: If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program.
For Technical Support, double-click the e-mail address located at the bottom of each menu.


DR. WEB CUREIT
----------------------
Please download Dr.Web CureIt and save it to your desktop. DO NOT perform a scan yet.
alternate download link
Note: The file will be randomly named (i.e. 5mkuvc4z.exe).

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in Safe Mode.

Scan with Dr.Web CureIt as follows:
  • Double-click on the randomly named file to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All. (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • After the Express Scan is finished, put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and uncheck "Heuristic analysis" under the "Scanning" tab, then click Apply, Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • Please be patient as this scan could take a long time to complete.
  • When the scan has finished, a message will be displayed at the bottom indicating if any viruses were found.
  • Click Select All, then choose Cure > Move incurable.
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

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#3 alexander59

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Posted 10 August 2009 - 11:02 AM

Thanks for the welcome - the message comes up every time I log on to my computer. Thanks for the links, I shall try them to see if they work.

#4 Elise

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Posted 10 August 2009 - 11:08 AM

Okay, let me know if you have problems!

regards, Elise


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#5 alexander59

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Posted 10 August 2009 - 11:43 AM

Okay, I can't run the computer in safe mode. It says, when I try, "We apologize for the inconvenience, but Windows did not start successfully. A recent hardware or software change might have caused this." And then it gives me options for a few safe modes, last known good configuration, and normal start. If it matters, when I pressed F8, it gave me the option of choosing Windows XP or Windows Recovery Console, and after choosing XP, it took me to the choices, and then the above happened.

So, what is my next step?

PS - I ran the ATF-Cleaner, but not the Dr. Web Cureit yet.

EDIT: When I choose safe mode, a bunch of words about "drivers" flash across the screen, and then the comp. restarts itself before telling me it failed.

Edited by alexander59, 10 August 2009 - 11:46 AM.


#6 Elise

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Posted 10 August 2009 - 11:52 AM

Try running Dr. Web in normal mode.

regards, Elise


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#7 alexander59

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Posted 10 August 2009 - 12:04 PM

Okay, will do.

#8 Elise

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Posted 10 August 2009 - 12:09 PM

One question, do you remember when Recovery Console was installed on your system?

regards, Elise


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#9 alexander59

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Posted 10 August 2009 - 12:10 PM

Just ran the express scan, nothing found was found, and I am starting the complete scan.

One question, do you remember when Recovery Console was installed on your system?


Sorry, I don't know. Is there a way I can check this?

#10 Elise

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Posted 10 August 2009 - 12:18 PM

Never mind that, I think I know it already :thumbsup:

ROOTREPEAL
-------------
We need to check for rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive.
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

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#11 alexander59

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Posted 10 August 2009 - 12:21 PM

Should I do that RootRepeal thing simultaneously with the Dr. Web scanner? The complete scan has found two "trojans" so far (one being cured, the other being moved). And will the "moved" ones still affect me or are they incapacitated? Also, I've been posting from another computer, is it safe to post from the affected computer?

Thanks so much for all your help!

#12 Elise

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Posted 10 August 2009 - 12:53 PM

Finish Dr. Web and after that run RootRepeal.

sorry, I now see you were still running the Dr. Web full scan.

To be short about it, no moved items are no longer harmful.

regards, Elise


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#13 alexander59

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Posted 10 August 2009 - 02:11 PM

Here is the Dr. Web log:

Project2.exe;C:\CABS\Winxp\Utility\Flash2;Trojan.DownLoader.origin;Incurable.Moved.;
RegUBP2b-Owner.reg;C:\Documents and Settings\All Users\Application Data\Spybot - Search & Destroy\Snapshots2;Trojan.StartPage.1505;Deleted.;

I will now try the rootkit check, because the error came up again after reboot.

#14 alexander59

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Posted 10 August 2009 - 02:14 PM

Okay, when I open RootRepeal it says "Error - invalid PE Image found!", but if I press okay, it allows me access to the program. Is this a problem (as in the virus is targeting the program?), or should I just go ahead with the scan?

Edited by alexander59, 10 August 2009 - 02:27 PM.


#15 Elise

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Posted 10 August 2009 - 02:37 PM

Try the scan and see what it comes up with.

regards, Elise


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