Remove Backdoor.Preft – How to Remove Backdoor.Preft?

Is your computer infected by Backdoor.Preft? Does it keep coming back again and again after being removed by your antivirus program? Do you know how dangerous the Trojan horse can be? If you have a hard time removing this Trojan, you can get rid of Backdoor.Preft effectively by following the removal instructions below.

Backdoor.Preft Introduction

Backdoor.Preft is a very malicious Trojan horse that has the ability to attacked all versions of Windows operating system computers. Once it gets inside your computer, an obvious symptom is the slow performance of your computer. This Trojan is very dangerous because it can assist the evil hackers to enter your computer and perform their malicious activities. It will quickly spread its malicious files all over the computer and damage the important files and data stored on your computer as well. It can also modify system settings, Windows registry and other important settings, which will make your computer become unstable and vulnerable.

With a Trojan in your computer, there is no doubt that your privacy will be in danger. Backdoor.Preft has the ability to steal your steal your personal and financial information by recording your browsing history and monitoring your activities. The Trojan can even give remote hackers access to visit and control your PC. Thus, the hackers can easily install key-loggers on your computer to capture your passwords, account numbers, usernames, and other important information to earn illegal money. In addition, the Trojan will turn off your firewall and block your security programs, which will lower the security level of your computer system. As a result, your computer will be attacked by other threats when you are surfing online. Commonly, Backdoor.Preft can enter your computer by bundling with some unsafe programs that are available on the Internet. If you download and install an infected program, your computer may be compromised by this Trojan horse. Besides, the Trojan can also be installed on your computer if you visit malicious sites, open spam email attachments or click on suspicious links. Once the Trojan is successfully installed on your computer, there is no doubt that it will damage your computer severely. It will drop its designed codes into kernel system and modify the Windows Registry upon installation. It will also change the default system settings and delete crucial files. Consequently, you will notice that your computer is running much more slowly than before. At the same time, problems like blue screen of death error, computer freezes, system crashes, program-running failures will occur frequently, which will drive you mad. Apart from these, Backdoor.Preft may also affect your web browsers including IE, Chrome, and Firefox. That is why you will encounter unexpected redirection and receive unwanted pop-up ads when you go online. As time goes by, your browser will be out of control and crash frequently. Sometimes it will even disable your network connection. Therefore, you have to remove Backdoor.Preft immediately without any hesitation to protect your computer and your privacy.

Don’t know how to get rid of Backdoor.Preft from your PC? Please click here to download an advanced removal tool on your PC to help you detect and delete the infection automatically and completely.

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How to Remove Backdoor.Preft?

Option 1: Delete the Trojan Automatically with Removal Tool SpyHunter.

Option 2: Delete the Trojan Automatically with Removal Tool Malwarebyte Anti-Malware.

Option 3: Delete the Trojan Manually By Following the Instructions Given in This Post.

Option 1: Delete Backdoor.Preft Automatically with Removal Tool SpyHunter

SpyHunter is a reputable and powerful malware removal tool, which is able to detect and remove various kinds of computer threats from your PC within minutes. It can deeply scan your whole PC system to find out and delete the various kinds of threats automatically and completely. You can follow the simple steps below to install it on your PC and use it to remove the infection.

Step 1: Click on the below button to download SpyHunter on your computer
Download-SpyHunter-Now1

Step 2: Double click the icon of SpyHunter to run the program. Click on the Run button if the system prompts a window asking you whether you want to run the program or not.
run

Step 3: Tick I accept the license agreement and then click Next. Then SpyHunter will be installed on your computer automatically.
agreement

Step 4: As soon as you finish the installation, launch the removal tool to perform a full system scan to find out the threat by clicking on “Scan Computer Now”.
scan

Step 5: When the scan finishes, check the scan result and then click the Remove button to delete all the detected threats from your computer. Reboot your computer to apply all changes.
eXL

Option 2: Delete Backdoor.Preft Automatically by Using Removal Tool Malwarebyte Anti-Malware

Malwarebyte Anti-Malware is a powerful and reputable anti-malware program that has the ability to scan your system and remove all detected threats from your computer. To remove the redirect virus completely and easily, you can first download and install this removal tool on your computer and run it to perform the removal task automatically.

Step 1: Click here to download Malwarebytes Anti-Malware on your computer directly.(official link)

Download-Malwarebyte
Step 2: When the download process is accomplished, double-click at “mbam-setup” file to start the installation of Malwarebytes Anti-Malware.
Malwarebytes-Anti-Malware-Setup
Step 3: Click “Run” if you see a window similar to the below one.
Malwarebyteopen_install_file
Step 4: Now you will see the “Welcome to the Malwarebytes Anti-Malware Setup Wizard” window. Click on the “Next“ button to continue the installation process.
malwarebytes-anti-malware-installation1
Step 5: Follow the setup wizard to install the removal tool on your computer. When you see the below window, check the box of “Launch Malwarebytes Anti-Malware” and click the “Finish” button.
malwarebytes_setup_finish
Step 6: Launch Malwarebytes Anti-Malware and click on the “Scan” tab, select “Threat Scan” and then click on the “Scan Now” button to perform a full scan of your computer system.
Malwarebytes -threatscan
Step 7: After that, Malwarebytes Anti-Malware will start scanning your whole PC system to find out the adware other hiding threats. You will have to wait for a while during this procedure.
Malwarebytes -scan
Step 8: Once the scan is complicated, Malwarebytes’ Anti-Malware will show you a list of all the threats detected on your computer. Now you can click “Quarantine All” and then click the “Apply Actions” button to remove all the detected threats from your computer.
Malwarebytes -scan-done
Step 9: After removing all the infections, Malwarebytes Anti-Malware may require you to reboot your PC in order to remove some leftovers of the threats. If you see a message stating that it needs to reboot your computer as the follow image, please click yes.
Malwarebytes -reboot

Option 3: Delete Backdoor.Preft Manually By Following the Instructions Given Below

Step 1: Restart your computer in Safe Mode with Networking.
Press the Ctrl+ Alt+ Del keys together to activate Switch User interface.
Hold the “Shift” key and click on the “Shut down” button at the same time.
Choose Restart option from the pop-up options.
Then choose “Troubleshoot.”and select “Advanced Options”
Troubleshoot
Choose “restart” under Startup Settings.
Then use F5/5 key to choose Safe Mode with Networking.
Step 2 : End the malicious processes related to the Trojan.
Reach the desktop and press Ctrl+ Esc+ Shift or Ctrl+ Alt+ Del keys combination, then locate Task Manager.
task manager
Press the Process tab to scroll down and choose malicious process related to the Trojan horse and then click the End Process button.
Step 3: Uninstall programs from Control Panel.
Move the mouse cursor around on the Start screen to reveal the Apps button.
Click on the Apps button to display the Apps view and type control panel in the search box.
search-control-panel
Click Control panel from the search results and select Uninstall a program.
Find out and locate at the malicious program related to the Trojan horse and then click Uninstall or Remove option.
After that, follow the pop-up wizard to uninstall those processes related to the Trojan from the infected machine.
Step 4: Delete the malicious files of the Trojan
Open control panel and then click on Appearance and Personalization link.
Double click on Files and Folder Options.
Click the View tab when the Folder Options window opens.
Check “Show hidden files, folders and drives.”
Uncheck “Hide protected operating system files(Recommended)” and then click the OK button to show hidden files.
Folder Options windows8
Then Find out and delete all the malicious files of the Trojan horse.
%User Profile%\Local Settings\Temp
%Documents and Settings%\All Users\Start Menu\Programs\[Trojan horse name]
%Documents and Settings%\All Users\Application Data\[Trojan horse name]
%Program Files%\[Trojan horse name]

Step 5: Delete the registry entries related to the Trojan horse.
Press Windows + R keys together to pop up the Run box. Type “regedit” and press OK.
Reach the Registry Editor, find out and delete the registry entries related to the Trojan horse.
registy-editor
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall[Trojan horse name]
HKEY_LOCAL_MACHINE\SOFTWARE\[Trojan horse name]
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “WarnOnHTTPSToHTTPRedirect” = ’0′
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore “DisableSR ” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “xas”
HKEY_CURRENT_USER\Software\[Trojan horse name]

How to Avoid Backdoor.Preft Infection

Generally speaking, this Trojan can invade your computer through malicious websites, free downloads as well as spam emails. Therefore, you have to be careful while surfing the Internet. The tips below can help you avoid this Trojan:

* Do not browse unsafe websites like pornographic sites and gambling sites because they always contain computer threats.
* Do not click the suspicious links or download attachments of spam emails. Cyber criminals always use junk emails to spread malware.

* Download free software only from trustworthy sources. Freeware/shareware available on unreliable sites is often bundled with PC threats.

* Install a reliable antivirus program on your computer and keep your system and the programs installed on your computer up-to-date.

Important Note: Manual removal is not an easy task, if you want to remove the Trojan horse manually, please make sure that you have sufficient computer expertise. Any incorrect operation such as deleting important system files and registry entries will result in a complete system crash. Therefore, the best option to remove Backdoor.Preft is to use an automatic removal tool, a professional removal tool can help you get rid of the Trojan horse completely and automatically.

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