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Corrupted or Infected System? [Techie Level]


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#1 nostalgix

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Posted 19 May 2011 - 11:17 PM

Heya, fellas, I'm getting fed up by my unstable system performance. I believe this was partly due to me foolishly running ComboFix nearly half a year ago (to help solve my network card driver issues)! I'm a techie myself, and that's why I was brave enough to use ComboFix, even if it means my system will be corrupted. But, now, it's getting annoying, and I'm too lazy to dig up info from the logs myself. Please forgive me, fellow techies...

*Bottom line: I need help restoring my corrupt Windows system (which was probably caused by ComboFix), without doing a fresh reinstall of Windows. If there's actually an uber mad infection on my comp, I'd be really happy and excited to learn how to get rid of it, as I never found one anymore. The logs are ready, if needed.

*The full story:
I have mainly tried to secure my system with up-to-date MBAM, Avast, Kaspersky TDSS Remover, and so on. My comp was in a seemingly perfect state, until one day I'm seeing errors from the event log about my wireless network card driver from my laptop's manufacturer (Sony). They refused to believe the driver is problematic and suggested for me to factory restore my whole comp--which is NEVER an option for me, unless my hard drive fails. (Also, in case you're wondering, I backup all data using Windows Backup nearly every week.) So, I decided to try ComboFix for help, despite the fact that I clearly know its side effects. I believe I also got the latest drivers from my network card manufacturer, Intel, which finally got rid of the errors, for good. However, soon I experienced ComboFix's generic side effects, such as unable to create a shortcut icon from context menu, etc. I quickly fixed them thru the registry.

So, long story short, svchost.exe started consuming 100% CPU, freezes my comp, and lately auto-shutdowns my comp. I've disabled automatic Windows Update, set clean boot thru msconfig with only essential services and with/without Avast... yet I'm still experiencing this dilemma. I believe it may be related to corrupt networking files/drivers, as I frequently got 100% svchost whenever my network card is having trouble finding/connecting access points.

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#2 nostalgix

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Posted 22 May 2011 - 11:05 PM

*BUMP-Update with more info:
Help! My situation's getting worser and worser every day! By the way, sorry for not mentioning some basic info: I'm on Windows 7 Home Premium SP1 (64-bit); for the hardware specs, if necessary, please search my laptop's model number: VGN-FW560F. Also, I apologize for my inability to make things more concise. I don't know how else I should explain this dilemma!

*My workarounds so far:
Usually, as a workaround, I would update my Intel WiFi Link 5100 AGN wireless network ("wifi") card driver whenever I see Windows having "trouble" (see following listed symptoms) utilizing the wifi card. This time, though, the workaround helps for only 2 days (or 2 hard-reboots) before I'm experiencing the madness again right now. I might try to rollback and use the default driver from Microsoft as another workaround, but I might not use it since it's going to have problems with DNS configurations and wouldn't send me to sites properly sometimes, just like long time ago; it feels as if I have some browser-hijacker viruses, but not really.

*My observations:
I believe the problem lies in my corrupt Windows system files/libraries/DLLs that are used as APIs by my wifi card driver, which in turn might be caused by my previous attempt at foolishly experimenting with ComboFix. (May it also be caused by my wifi card hardware? I hope not, though.)

I'm able to use the wifi card fine in Safe Mode, but I believe that's due to the simple functionality of the safe mode driver that doesn't fully expose the wifi card's full capabilities/problems. This is something like what happened when I was using a graphics card with a blown capacitor that would freeze Windows in normal mode, but let Windows go on in Safe Mode, since Safe Mode "barely" used the graphics hardware.

*The symptoms and effects:
This problem's very, very annoying, as it will make the system hog the CPU up to 100% (and, consequently, RAM as well), trying to endlessly set up my laptop's proper wireless networking. It will connect to my existing, healthy network at "limited connectivity," and trying to toggle/diagnose the adapter/driver won't work. Most of the times, it would even freeze up the whole system, even while the system's trying to soft reboot/shut down. It's just like having a mad virus/hardware failure, in that I finally had to do a force shutdown.

***All of my screenshots (ProcessExplorer, etc.) are and will be in this photobucket page:
www.photobucket.com/cpuhog

*More side effects:
In addition, aside from corrupted networking functionality:
1. Google Chrome would cause heavy memory leaks/100% CPU hogging when I use Facebook Photos, Google Instant, and other Async. JS & XML (Ajax)-heavy or Flash-heavy Web apps.
2. Converting improper HTMLs to PDFs using Winnovative's HTML2PDF, converting between video formats, and so on would now produce output files around 10+ times the size of what the same exact software on my machine would produce when it wasn't as corrupt. As a result, it takes way longer to produce output, and the output files would actually have lower qualities/more pixelated. I'm guessing this may be caused by some corrupt Windows files used by .NET frameworks used in most native Windows programs.

So, that's all the details I got for now. Any attempt to help my problem would be greatly appreciated! Thanks in advance, fellas!



P.S.: I'm writing this in Safe Mode to avoid all the trouble! This sucks.

Edited by nostalgix, 22 May 2011 - 11:15 PM.


#3 boopme

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Posted 23 May 2011 - 01:06 PM

Hello having run ComboFix we need to see that and a DDS log.

Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9 which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
Skip the GMER step and instead post the ComboFix log you posted earlier.

Let me know if that went well.
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#4 nostalgix

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Posted 24 May 2011 - 09:55 PM

I've posted the logs here.

Thanks a lot for your help!



P.S.: As a workaround, I've now rolled my wireless network card driver back again to the original from Microsoft. It seems to immediately relieve the problem again, so it seems very strongly related to my comp's wireless networking functionality. I still need help since I believe once I give it the most up-to-date driver again, this problem will strike back.

Edited by nostalgix, 24 May 2011 - 10:03 PM.


#5 boopme

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Posted 25 May 2011 - 11:19 AM

Now that your log is properly posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a Malware Removal Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the Malware Removal Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the Malware Removal Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the Malware Removal Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRL Team member is already assisting you and not open the thread to respond.

To avoid confusion, I am closing this topic.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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