I know there is lots of guides and different opinions out there, this one works.
This guide has been prepared using
information freely available on the internet and has links to free tools to
help you removed Virus, Spyware and other forms of Malware.
If you think you have a Virus or Trojan
then do the following:
Before
you start
Download and install Mozilla Firefox. Do this so
that when you are downloading the programs below, you do not arouse the malware
to what you are doing!
Also go through your all programs
list click Start then click on Control
Panel then double click Add or Remove programs) or (click Start then click on Control Panel then double
click Programs and Features in Vista) and remove anything that you have not
installed, and anything that looks suspicious and is not published by a well
known company. You can find out the publisher by clicking the "Click here for support information"
link when the program is selected.
How
to Boot into Safe Mode
You
will be asked to boot into safe mode later on.
Do this by repeatedly tapping F8 when
your computer is starting up until you see a screen with text on it showing
different boot options, choose Safe Mode.
Disable
System Restore
Disable System Restore – go into
Control Panel>System>System Restore tab>Disable System Restore on all
drives>OK. When you are sure that
virus problem is gone and your PC is working OK then you can turn System
Restore on.
Run
CCleaner
CCleaner will virus scans run
faster. Download CCleaner from http://ccleaner.com.
On installation, deselect all options except "Add Desktop Shortcut"
and "Add Start Menu Shortcuts". Open CCleaner and click "Run
Cleaner".
Install
MalwareBytes Anti Malware and clean your HOSTS file
Download Malwarebytes Anti Malware Install it. After installing it,
open it and click the "More Tools" tab. Under "FileASSASIN"
click Run Tool. In the Window that pops up, navigate to
C:\WINDOWS\system32\drives\etc and double click on "hosts". Restart
your computer, Update Malwarebytes, then restart your computer in safe mode.
Open Malwarebytes and then run a full scan of all your local drives.
Run
a scan with your Antivirus program
Run a full scan with your antivirus
program and remove any threats found by quarantining them, DO NOT REPAIR
OR HEAL OR DELETE. The removal of your current Antivirus program will safely
remove the infected files, see the next step.
Remove
your current Antivirus program
Remove your current Antivirus tool
by going into Control Panel>Add or remove programs or (Control
Panel>Programs and Features in vista). If it is Norton’s, you will need to
use the Norton Removal Tool
Install
Avira AntiVir PersonalEdition Classic
Install Avira AntiVir Personal. Once AntiVir is installed, update
it and then reboot into Safe Mode by repeatedly tapping the F8 button when your
computer is restarting. Run a full scan by opening My Computer, then right
clicking your hard drive and selecting "Scan With AntiVir". Do this
for all hard drives listed in my computer.
Install
SuperAntiSpyware
Install SuperAntiSpyware, update it, then run a full scan.
Run
Avast! antirootkit tool
Download avast!
antirootkit
Be sure to close all programs when
running this tool. It is not compatible with 64bit systems.
Disable
any untrusted Internet Explorer add-ons
Chances are that after cleaning your
system, there will still be some adware add-ons loaded into Internet Explorer.
Go to Start>Control Panel>Internet Options>Programs>Manage Add-ons.
Disable any that you haven't installed – Some trustworthy authors are:
Microsoft Corporation
Adobe Systems Incorporated
Google Inc
If you do all these scans and your
system is not clean, then you really need to backup your personal files and
reformat and reinstall Windows. Install
this program MalwareBytes
Anti Malware Pro to help prevent future infections by using real time
protection. This will save you money and time.