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My laptop has some kind of virus / malware / spyware that damages other installed softwares. The windows media player classic won’t open and has errors, the windows messenger got erased in the startup items, and when i tried to install avg internet security 2011, before the installation finished, my laptop would shut out and boot again. As for now, I freeze the system disk but not the other local disk where i save all of my files. After it happened, when i tried to reinstall the said antivirus, an error would occur and the installation wont finish. I tried stopzilla but it’s useless. The registry mechanic too. And now, I’m afraid to install the antivirus because it reports my installation files is infected and some of my softwares like games, the “.exe” files will get deleted by the antivirus. What should i do?

Chosen Answer:

+First download the latest versions of the following on +another, clean machine+ and burn to CD or copy to a USB memory stick+

Malwarebytes: http://www.malwarebytes.org/mbam.php
ComboFix http://download.bleepingcomputer.com/sUBs/ComboFix.exe
FixNCR.reg http://download.bleepingcomputer.com/reg/FixNCR.reg
RKill http://www.bleepingcomputer.com/download/anti-virus/rkill- this page has a variety of different filenames to download to fool the virus, which will try to block RKill from running. Remember the filename of the version you downloaded.
CCleaner (cleans out caches) http://www.ccleaner.com

Avast! 4 Home: http://www.avast.com/eng/download-avast-home.html

Download these to your desktop and before running them, then change the names of the malwarebyte and combofix files to
Malwarebytes: mblah.scr
ComboFix: comfix.exe

Follow these steps in order Don’t skip ahead.

Now, start the machine in Safe Mode with networking (hit the F8 function key as the machine boots up, and choose Safe mode)

Turn off System Restore on your machine, but only until you get this fixed – many of these trojans get copied into the System Restore files, which anti-virus programs aren’t allowed to touch and the viruses could reinstall themselves from there. My Computer > Properties > System Restore.

The malware actively blocks programs and tools, so before you can start cleaning, you need to get the malware entries out of the registry, and stop the malware’s current processes from running.

Double-click FixNCR.reg to run it to clean the registry

Now double click the RKill file (whatever name you downloaded it as) to run it. Wait for it, it could take a while. If the fake antivirus program throws a warning on the screen and blocks RKill, leave the warning up on the screen and run RKill again.

Do not reboot your computer If you reboot it will just load the malware in again.

Then run CCleaner (it’ll make scanning faster because it will delete a bunch of temp files and save you from having to scan those.) If the virus blocks CCleaner from running, proceed to the next step.

Then run Malwarebytes (mblah), and clean everything it says.

Then run ComboFix (comfix), and clean everything it says. If it tells you to reboot your machine during the process, do so immediately.

Then install and run Avast – tell Avast to do a boot-scan – click on “schedule boot-scan” – and restart the computer

Let it start and do the Avast boot scan

Then turn System Restore back on.

Now install the antivirus program of your choice to do continuous scanning, and make sure you keep it up to date

Always keep your Windows, web browser and Java software up to date – frequent patches are released to plug security holes.

http://www.pcworld.com/article/149298/10_quick_fixes_for_the_worst_security_nightmares.html

by:
on: 15th June 11