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Internet Browsers crash randomly, programs don't load on startup, computer slowdown


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9 replies to this topic

#1 Celsus

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Posted 20 April 2009 - 11:40 AM

About two days ago, I noticed that my internet browser (Firefox) kept crashing. I reinstaled it and optimised its memory usage, but that didn't help. When I switched to IE, the same thing happened. I rebooted the computer, and this time none of the normal applications (Skype, MSN, McAfee 'active' icon) loaded correctly. The computer also seemed to be going a lot slower than usual.

I am using Windows XP, Home Edition (2002), SP2. I tried to update to SP3, but on restarting the System menu still tells me I'm running SP2.

I downloaded FreeXPpro to make sure that a memory leak wasn't to blame, and it indicates that at least half of my RAM is free most of the time.

Then, I downloaded ProcessExplorer to check to see if any of the system processes weren't what they should be (everything seemed fine).

I tried to run McAfee, but the scan went so slowy that about 7 hours later at 70% the computer locked up. It didn't find anything in that time.

Then I downloaded Clean40 to clean my temporary files.

Next I downloaded the latest version of a Malwarebytes. It crashed when I tried to update it, and went very slowly otherwise. I decided to run it in Safe Mode, and it discovered 9 registry keys were infected with WebDir and MiniBug.

However, on restarting my computer, the programs still won't load correctly on startup, windows update / Malwarebytes update doesn't work and I still get random crashes.


I'm really stuck and I don't know what to do to get my computer back to normal, so any help would be greatly appreciated.


Celsus.

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#2 Guest_superbird_*

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Posted 20 April 2009 - 11:45 AM

Hi Celsus,

Welcome here. :thumbsup:

Please download the newest updates for Malwarebytes' Anti-Malware here: http://www.malwarebytes.org/mbam/database/mbam-rules.exe

Then, reboot again in Safe Mode.
Now, run the update-file for MBAM.
then, start MBAM and do a new full scan.
Restart your pc after this in normal mode, and post the log. :flowers:

#3 Celsus

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Posted 20 April 2009 - 02:49 PM

Thanks for the welcome and the quick response!

Unfortunately, nothing was picked up / changed. Here's the log:

Malwarebytes' Anti-Malware 1.36
Database version: 2015
Windows 5.1.2600 Service Pack 2

20/04/2009 20:36:08
mbam-log-2009-04-20 (20-36-08).txt

Scan type: Full Scan (C:\|F:\|)
Objects scanned: 160456
Time elapsed: 1 hour(s), 6 minute(s), 33 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#4 Guest_superbird_*

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Posted 21 April 2009 - 04:35 AM

Hi,

Please go to Kaspersky website and perform an online antivirus scan.

Note: If you are using Windows Vista, open your browser by right-clicking on its icon and select 'Run as administrator' to perform this scan.
  • Read through the requirements and privacy statement and click on Accept button.
  • It will start downloading and installing the scanner and virus definitions. You will be prompted to install an application from Kaspersky. Click Run.
  • When the downloads have finished, click on Settings.
  • Make sure these boxes are checked (ticked). If they are not, please tick them and click on the Save button:
    • Spyware, Adware, Dialers, and other potentially dangerous programs
      Archives
  • Click on My Computer under Scan.
  • Once the scan is complete, it will display the results. Click on View Scan Report.
  • You will see a list of infected items there. Click on Save Report As....
  • Save this report to a convenient place. Change the Files of type to Text file (.txt) before clicking on the Save button.
  • Please post this log in your next reply.
If you need a tutorial, see here

#5 Celsus

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Posted 22 April 2009 - 06:37 AM

I finally was lucky enough to have Firefox not crash on me during the scan.

After about half a day, it finished, saying nothing was detected. For some reason, I couldn't save the log, but I took this screenshot.

Posted Image


McAfee is visible because I'd opened Security Centre to turn off protection before Kaspersky started.


(P.S Another odd thing has started happening: sometimes when I go to type in a URL, the text comes out backwards, i.e:

moc.retupmocgnipeelb.www)

Edited by Celsus, 22 April 2009 - 06:41 AM.


#6 Guest_superbird_*

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Posted 22 April 2009 - 08:26 AM

Do you have the idea someone is busy on your computer, like a remote desktop?

Do this to be sure it isn't a normal windows problem:

We need to repair some of windows' internal registration settings
  • Please download Dial-A-Fix from one of the following mirrors:
  • Extract the zip file to your desktop.
  • Double click Dial-a-Fix.exe to start the program.
  • Press the green double checkmark box (Looks like this: Posted Image)
  • UNcheck "Empty Temp Folders", as well as "Adjust Time/Date" in the prep section. The prep section should then look like this:
    Posted Image
  • When the window looks like this, press the GO button in the bottom of the window.
    Posted Image
  • Exit/Close Dial-A-Fix


#7 Celsus

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Posted 22 April 2009 - 01:25 PM

Thanks for all your help so far, Superbird.

Ran the program just like you said to, and restarted.

Still getting the crashes and slowdown.

I've also noticed on Process Explorer that mcagent.exe keeps launching and then closing again.

I don't know what to suspect, but since I discovered the 'backwards typing' problem which happens sometimes, it makes me wonder.

#8 Guest_superbird_*

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Posted 22 April 2009 - 01:27 PM

Hi,

I'm going to redirect you to the HijackThissection of this forum. This, because I'm thinking about remote control
Read this page and follow it's steps: http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/

Please give them a link to this topic.

Good luck. :thumbsup:

#9 Celsus

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Posted 22 April 2009 - 05:20 PM

Thanks again, superbird. I will do!

But first...Unfortunately, I cannot run DDS.scr as per the instructions in the topic. I have terminated McAfee script scanning and my internet connection, but all that happens is a black window flashes up and then disappears again.

What should I try / where should I look for help?


Sorry to bother you again.


Celsus

#10 Guest_superbird_*

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Posted 23 April 2009 - 12:35 AM

Hi,

Do the following, and post the log of it in place of the DDS-log!

Please download the self-extracting version of HijackThis from here:
HijackThis Installer Download

Save HJTInstall.exe to your desktop.

Double-click the file then click the Install button.

The file will be extracted to C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
A shortcut for future use will also be created on your desktop and the Intro Frame of HijackThis will open.

Click Do a system scan and save a log file. Copy the entire contents of that log and post it in the HJT Section of this forum!!

Edited by superbird, 23 April 2009 - 12:36 AM.





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