how to get rid of Trojan dns.changer?

Question

First of all thanks for your help. I am at my wits end. I have done all that I can do. I have kaspersky anti virus 2011 which did not find the virus so after researching i learned to download malware bytes which does find it and remove it but when I restart computer and rescan it shows up again. I have also discovered that this only happens when i am at home connected to our home wireless network. I went to a bookstore and connected to the wifi connection there and ran scan with malware bytes and it didn't find the virus and I had non of the problems I have when I am at home on the internet... but of course when I get back home I run the malware bytes scan and the trojan is there again and cant be removed and I have all these problems for example my problems at home include: being redirected to different websites, not able to go to certain websites, not able to do any updates. Please help......I have tried anti spyware, malware bytes, avira..the only one that finds is malware bytes but it only stays removed when i am not at home on the wireless connection there. Could there be something wrong with the router at home or can it get infected with the virus?

Answer 1

Reboot your computer



Launch an antivirus program that you should have installed on your computer, such as Symantec's Norton or McAfee. Wait for the program's window to appear, then go to "Disk View." Highlight your computer, then select "Scan/Repair" so that the antivirus can detect the Trojan and trash it.



Exit the antivirus program on your Mac. Restart your computer again to ensure that the Trojan has been deleted. Empty the trash can on your computer once it is back up and running.



Disable the System Restore feature if you're a Windows user. Go to "Start" at the bottom of your screen, then right-click the "My Computer" icon to go to "Properties." Check "Turn off System Restore" under the System Restore tab in the "Properties" window, then select "Apply." Confirm that you want to disable System Restore by clicking "Yes" and "OK."



Update your virus definitions in your antivirus program. Open the program, or go to the website, to download the latest definitions so that you can receive the most recent alerts and keep your computer protected.



Scan your files to detect the Trojan file. Follow the instructions in your antivirus program to delete any suspicious files. You may want to write down the path and file name of the Trojan, which is usually found in the "C:\" hard drive. Then, edit your computer's backup registry by choosing "Start," then "Run." Type "regedit" in the window that appears and click "OK."



Search for the registry entry from which the Trojan derived, which may begin with "HKEY" followed by the file path. Delete the registry entry to ensure that the Trojan is removed. Exit the registry entry, and restart your computer so that the changes can take effect.

Answer 2

First Turn off System Restore Steps to turn off System Restore



1. Click Start, right-click My Computer, and then click Properties.

2. In the System Properties dialog box, click the System Restore tab.

3. Click to select the Turn off System Restore check box. Or, click to

select the Turn off System Restore on all drives check box.

4. Click OK.

5. When you receive the following message, click Yes to confirm that you

want to turn off System Restore.



Then After Restart you Computer Safe Mode With Networking how to Restart?

1. Log out and reboot your

machine.

2. When the

machine starts the reboot

sequence, press the F8 key

repeatedly.

3. Select Safe Mode with Networking from the resulting menu.

4. When the log in screen comes up, log in as Administrator. By default,

Administrator has no password.

5. The machine will continue booting, but the Windows desktop will look

different. In The Safe Mode With Networking Then Download by using Rkill press here http://www.bleepingcomputer.com/forums/topic308364.html



6. To Remove Virus in you Computer Download and Scan By Using Both Super Anti-Spyware Press here http://www.superantispyware.com/

And Malwarebytes' Anti-Malware Press here http://www.download.com/3001-8022_4-10804572.html?spi=fb0ff4862fe5064a5a0a91a28a3fbe34



7 Download and Using SmitFraudFix v2.423 (WinXP, Win2K) This tool removes Desktop Hijack malware to Download SmitFraudFix v2.423 (WinXP, Win2K) press this link here http://siri.geekstogo.com/SmitfraudFix.php



8 Download ATF is a new, freeware, temporary file cleaner for Windows, IE, Firefox and Opera with a simple, easy-to-use interface.



The main screen allows the user to either clean all temporary files, or select files for cleaning. The program also knows if Firefox and or Opera is being used, and gives the option of cleaning the temporary files associated with those applications.



ATF Cleaner provides the user with a window showing the total bytes freed upon completion. The program is small (36kb), quick to run and no installation required. to Download ATF Cleaner press this link http://download.cnet.com/ATF-Cleaner/3000-18512_4-89432.html





9. After Remove Virus in you Computer Turn On system Restore Steps to turn on

System

Restore



1. Click Start,

right-click My Computer, and

then click Properties.



2. In the System Properties dialog box, click the System Restore tab.

3. Click to clear the Turn off System Restore check box on all drives check

box.

4. Click OK.



After a few moments, the System Properties dialog box closes Then

Restart you Computer.



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Answer 3

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Answer 4

Simple. Request for help here and they will do the rest for you:



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Those guys are very fast, efficient and best of all, free. Highly recommended.