Computer crashes when trying to access internet, avast wont pick up infection?

Viruses and worms
1

Hello i have recently turned on my main computer after using my laptop for a few weeks to discover that everytime i try to open a web browser such as chrome the computer will become unresponsive and then the screen will turn blue and crash. I was previously using microsoft security essentials and installed avast after a recommendation from a similar post saying it would fix the problem.

After making a forum post on the malwarebytes forum i was told to remove MES as the two antivirus programs could have been conflicting.

Now that I have got avast to work i have tried running a full scan and nothing has appeared in terms of viruses. When i try to do a boot scan the computer wont boot and i have to restart it.

I can still access the internet via playing League of Legends (internet game) so i am fairly sure this is a virus.

I am very unfamiliar with how to use avast, so any advice would be greatly appreciated

thanks in advance

2

malware removers are notified, should be here later today

3

Are you having the same problem with all browsers ?

Download and Install Combofix

Download ComboFix from one of the following locations:
Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop

  • IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks

http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png

http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png

[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.

Notes:

  1. Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
  2. Do not “re-run” Combofix. If you have a problem, reply back for further instructions.
  3. If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

THEN

Please download MiniToolBox, save it to your desktop and run it.

https://dl.dropbox.com/u/73555776/minitoolbox.JPG

Checkmark the following checkboxes:

[]Flush DNS
[]Report IE Proxy Settings
[]Reset IE Proxy Settings
[]Report FF Proxy Settings
[]Reset FF Proxy Settings
[]List content of Hosts
[]List IP configuration
[]List Winsock Entries
[]List last 10 Event Viewer log
[]List Installed Programs
[]List Devices
[]List Users, Partitions and Memory size.
[*]List Minidump Files

Click Go and post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.

Note: When using “Reset FF Proxy Settings” option Firefox should be closed.