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Remove Backdoor.Runnet: How to Remove Trojan Virus on Mac and Windows PC ( Beginner's Guide )

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◆ Basic Information of Backdoor.Runnet
◆ Conception of Trojan or Trojan Horse: What Is Trojan Virus?
◆ How did Backdoor.Runnet Your Mac and Windows PC?
◆ How to Remove Backdoor.Runnet from Your Computer Completely
◆ Main Symptoms When You Get Backdoor.Runnet on Mac or Windows PC


Basic Information of Backdoor.Runnet



Backdoor.Runnet is a kind of computer virus which should be categorized as Trojan horse virus. Not only Windows system would be infected by this Trojan virus but also Apple Mac OS X would get infections although the Apple system has the world-wild reputation for security among other operating systems. Backdoor.Runnet can be detected out by most of the anti-virus software either for Mac or for Windows PC. If you find Backdoor.Runnet malicious program installed on your computer, you had better remove it with the powerful security programs as soon as you can. Such kind of Trojan virus will be spread rapidly to users computers around the world. There are thousands of Trojan horse threats have been detected and removed successfully by the labs of Symantec, McAfee, Kaspersky and Different Trojan virus will show different symptoms on the computer but remember that the main purpose of them are totally illegal. Backdoor.Runnet is obviously programmed to rob confidential data on target users' computers. Cyber hackers are going to sell the personal information to other third party who is interested in or steal user' s money by tracking their online activities and breaking the bank accounts easily once they inject the Trojan virus and obtain the financial information of users. 




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Backdoor.Runnet generates malicious files, activation codes on the compromised computer. When the Mac OS X or Windows operating system was launched, Trojan program would run itself automatically pretending as legitimate process. If you don't terminate the rogue process and keep it running at the system back stage, every behavior from you would be monitored by the cyber hackers all the time. Backdoor.Runnet enables the author to do anything they wish on the infected computer – including sending, receiving, launching, and deleting files, displaying data, and rebooting the computer. In addition, Backdoor.Runnet leaves more backdoor and vulnerabilities to virus publishers or cyber criminals who will inject other types of malware such as adware, spyware, ransomware on the computer. You probably will receive strange warning message, unwanted pops-up advertisements and unfriendly search results. The situation of your computer gets worse if you just leave the Backdoor.Runnet there. In some of the cases, the compromised computer would be controlled remotely to commit crimes which bring huge troubles to the owners. Most of the victims have never violated any policy and laws but they still are regarded as suspects just because their computers have been controlled by the hackers.  



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If you get Backdoor.Runnet on the Mac or Windows PC, you will find the machine is getting slow and sometimes the system become unstable and even freezing. It takes quite a lot time to respond every command from you. Moreover, malware associated with Backdoor.Runnet can crash the whole system and brings damages to hard disks. The confidential data stored in the hard disks would be modified maliciously while in some cases the victims lose their data for no apparent reason. Never be hesitated to remove Backdoor.Runnet from both of your Mac and Windows PC. Removing Trojan virus is the only method to protect you and your family if you store most of the important information, documents and files in the hard drive devices. 


Additional Knowledge: 99% of users from Unite States will get Backdoor.Runnet infection 


  • 99%
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  • 1%
  • 9%
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Conception of Trojan or Trojan Horse: What Is Trojan Virus?


Trojan virus or Trojan horse virus is a kind of malicious program designed by cyber-hackers and cyber-thieves to gather user's privacy and personal information including credit card numbers, bank accounts, searching cookies, online habits and every detailed users made on the computer. Not only steal the sensitive data of users, Trojan virus will also enable cyber-criminals spy on the victims and gain access to the operating system whatever it is Mac OS X or Windows. We have to admit that Trojan virus is very dangerous and should be removed immediately from the computer. There are various Trojan virus which will perform on victims’s computers: backdoor, exploit, rootkit, Trojan-Banker, Trojan-DDOS, Trojan-Downloader, Trojan-FakeAV, Trojan-Ransom, Trojan-GameThief, Trojan-Mailfinder, Trojan-Clicker. If you find any of them appearing on your computer, it means your machine has got infection of Trojan virus.  


Trojan virus always sneak into the computer system and installed itself secretly without users’ knowledge and permission. It often is bundled with freeware when downloading some of the freeware from suspicious website. Additionally, Trojan virus would be distributed through infected attachments from spam email, P2P network, malicious links and fraud advertisements which keeps alerting you to update your software. Trojan virus like Backdoor.Runnet will try to shut down other applications running on the computer and also will generate conflicts among the programs in order to get users into such dilemma that which kind of software they should remove. 



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If you come across Backdoor.Runnet on your computer, stop purchasing anything online then take measures to terminate and remove it completely from your Mac. provides you with the best guides about how to eliminate Trojan virus manually and automatically. Subscribe our official blog to receive the latest analysis of Internet threats everyday. You will learn knowledge about Mac protection, computer performance maintenance and more. 


Spyware Programs Infections Trends (last 30 days)  




How did Backdoor.Runnet Your Mac and Windows PC?


There are huge number of advertisements on the Internet and some of them are malicious ads which contain rogue freeware, fishing applications and other potential malware threats. The most common methods of infection are through exploits of unpatched operating systems, web browsers, and application/software programs. Other methods of attack include e-mail, peer to peer file sharing, downloading, and instant messaging. For instance, you may receive email message from companies or organization warning the you of a problem with your financial information, online account, or software and suggests you visit a link provided in the email. Your computer would become the attacking target if it is not protected. Backdoor.Runnet sometimes will be bundled with freeware software (video recording/streaming, download-managers or PDF creators). If you download and install the third-party program with less cautions, you will install the Trojan programs at the same time. Some victims clicked the advertisement which showing “Free online threats scans”, “free diagnose PC system” and were tricked to install malicious add-ons or toolkit on the computer. It is highly suggest you read the download agreement seriously otherwise you will fail to understand what other unwanted programs are being downloaded.  



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Main Symptoms When You Get Backdoor.Runnet on Mac or Windows PC


If there is any Trojan program on your computer, you may probably find some of the symptoms as below. Matching any one of the symptoms means that you may probably get the infection and you have to remove it immediately in order to protect your personal and private information. 


  • Unknown tool-bar, extensions, add-ons appear on the computer
  • The computer is getting slower than before since you installed it on the computer.
  • Unexpected icons appear in the task tray at the bottom of your screen.
  • The Trojan program may launch and scan your computer automatically when you enter the system.
  • Conflicts frequently happened on the computer after you download and install the Trojan program.
  • You frequently get alerts from your firewall about an unknown program or process trying to access the internet.
  • Unexpected icons appear in the task tray at the bottom of your screen.
  • The network speed is obviously slower than usual.
  • You cannot access security related websites or cannot update your antivirus software.


    How to Remove Backdoor.Runnet from Your Computer Completely

    ( Including Mac OS X Virus Removal Guide and Windows Virus Removal Guide )


    You are going to read a comprehensive guide which will help you remove Backdoor.Runnet with a few of steps. Just follow the instructions written by experts of to clean up the misleading application infection effectively. Here are the best virus removal tips of 2016 to show users how to protect computers and accomplish the malware removal mission.  


    I'm Running Apple Mac OS X  


    I'm Running Windows Operating System



    Tutorials for You to Remove Backdoor.Runnet from Mac OS X Manually


    Note: It is highly recommended you backup the important files on the computer before you follow the instructions in order to avoid any unexpected problems.


    The traditional removal method will not completely uninstall Backdoor.Runnet from your Mac. Please follow the detailed instruction to remove Backdoor.Runnet step by step. We will show you how to clean up the junk files and leftovers of this program.  


    Step 1. Terminate the process of Backdoor.Runnet via Mac Activity Monitor.


    * Click on Go in the taskbar and then select “Utilities”.

    preferences of Safari


    * Launch Activity Monitor by double clicking it, change the filter into “All Process”, click on Backdoor.Runnet, and then click “Quit Process”. 

    settings of Google chrome


    You also can force quite the application by pressing Command+ Option+ Esc keys after you launch the Mac Activity Monitor. Choose "Backdoor.Runnet" when seeing this screen and click "Force Quit" to close down the process immediately. 

    extensions of Google chrome



    Step 2. Please drag the icon of "Backdoor.Runnet" to the Trash.  

    Show advanced settings of Google chrome


    Step 3. It is a very important step for you to remove the program entirely. You need to clean up the preference files, support files, caches and all the useless files which are related to "Backdoor.Runnet". 


    1)Remove preferences files of "Backdoor.Runnet".  


    * Click on the "Go" menu of the taskbar and then select "Go to Folder".  


    Reset browser settings of Google chrome


    * Enter “~Library” in the blank box and then click on “Go” button. 

    click reset button to restore browser settings


    * Here you will see the Preferences folder in Library, and open the folder and then delete all the files associated with "Backdoor.Runnet".  

    click ‘Add-ons’ of Firefox


    2) Clean up Caches of "Backdoor.Runnet". 


    From Library menu, please find out the Caches folder and locate the files related this application then trash all of them. 

     “Reset Firefox” of Firefox


    3)Remove support files of "Backdoor.Runnet".  


    Open the "Application Support" folder under "Library", search for support files of "Backdoor.Runnet" and then remove them to the Trash.  

    click “Reset Firefox” button


    Step 4. Secure empty Trash to completely delete all of the files about "Backdoor.Runnet".


    Now, the main executive file and junk file generated by "Backdoor.Runnet" have been removed into the Trash. The final step is to clear the Trash so that you can uninstall this program thoroughly from the Mac.  


    Remove "Backdoor.Runnet" and Other PUPs Automatically for Mac. ( Recommended )


    If you don’t have any security software running on your Mac, you had better download and install one of the best anti-virus applications for Mac from the Internet market. This will absolutely keep your Mac far away from the Internet threats and meanwhile all of your personal information would be protected when you are online or offline.  


    MacKeeper is a great and powerful utility designed specially for Mac which contains amazing functions to remove viruses including adware, spyware, Trojan and malware from Mac OS X. Furthermore, this kind of software also helps users optimize the whole performance of Mac and recover their lost data. With this all-in-one Mac utility, you can remove the adware completely just in a few of minutes. Moreover, MacKeeper provides users with live chat support service in order to help them resolve any Mac problems effectively.  



    How to use MacKeeper to remove Backdoor.Runnet from Mac OS X  


    ”Internet Security” function of MacKeeper would help you remove Backdoor.Runnet and other malware threats from your Mac. Just follow steps as below, you will easily resolve any Mac security problems and protect the whole Apple Mac OS X system.  


    1.Download MacKeeper from this link: MacKeeper Download Link ( It is safe and free for downloading) 


    2.Please install MacKeeper on the Mac and launch it. 


    3. You will see ”Internet Security” on the menu, please select it and click ”Install Internet Security” button.  

    Internet Security function of MacKeeper



    4. You would be asked to type in your password before the installation.  

    password requirement of MacKeeper



    5. Please click ”Start Antivirus Scan” button to fully scan your computer. 

    click ”Start Antivirus Scan” to diagnose the Mac



    6. Wait for a moment when the software scans and detect out the malware threats on the Mac. 

    wait for the scanning finished


    7. Click ”Delete” icon to remove all the threats it detects out.  

    click “delete”icon


    8. Please restart your Mac to let changes take effects.  



    Video Guides to Remove Backdoor.Runnet with MacKeeper


    From the video, you will know that how the MacKeeper remove Backdoor.Runnet from your Mac and how this software protects the computer. 



    Now, the Backdoor.Runnet must be removed from your Mac successfully. We highly suggest you keep MacKeeper running on the backstage to protect your computer all the time.  



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    Tips to Remove Backdoor.Runnet from Windows PC


    Once the adware has installed and hided in your Windows computer, you need to remove it firstly.  


    Step 1: Uninstall Adware Program from Windows PC Manually 


    Remove Backdoor.Runnet adware program from Windows 10 / Windows 8 manually


    1. Open Task Manager by right-clicking the taskbar, and then clicking Start Task Manager. 


    2.Terminate the process which occupies too much CUP usage and system resources. 

    task manager in Windows 10


    3.Click “Start” ---”Settings”----”Control Panel”  

    Control Panel in Windows 10


    4.Click on the “Uninstall a program” option under “Programs” category. 

    Uninstall a program in Windows 10


    5.You will see the currently installed programs listed in the ”Programs and Features” screen. Find the malicious program which has the similar name as Backdoor.Runnet then remove it. You also should uninstall any suspicious and unknown programs. 

    remove infectious program in Windows 10


    6.Open the “Registry Editor”. You still need to clean up the fake registry entries to remove the adware completely. 

    Open “Registry Editor” in Windows 10


    7. Search malicious files and registry entries related to Backdoor.Runnet and then remove all of them: 





    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\[random]

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Temp 

    Remove fake registry entries in Windows 10


    Remove Backdoor.Runnet adware program from Windows 7 / Windows Vista / Windows XP manually


    1.If your computer operating system is Windows 7, Windows Vista or Windows XP, please click the “Start” button, then click on the “Control Panel” menu option. 

    Control Panel in Windows 7


    2. Click on the “Uninstall a program” option under “Programs” category. 

    Uninstall a program in Control Panel of Windows 7


    3. You will see the currently installed programs listed in the ”Programs and Features” screen. Find the malicious program which has the similar name as Backdoor.Runnet then remove it. You also should uninstall any suspicious and unknown programs. 


    4.Press Windows + R keys together, input regedit into the Run box and click on OK to open Registry Editor. 

    Open “Registry Editor” in Windows 7


    5.Search malicious files and registry entries related to Backdoor.Runnet and then remove all of them: 




    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\[random]

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Temp 


    Open “Registry Editor” in Windows 7


    Step 2: Remove Adware and Other Viruses from Windows PC Automatically (Recommended)  


    SpyHunter is a kind of powerful anti-malware program designed for Windows system. With SpyHunter, you can easily remove Backdoor.Runnet from your computer. Moreover, this security software also will help you clean up any other type of Internet threats even the latest malware spread all over the world. Please follow the tips as below to remove the infectious files on your computer. 


    1.Download SpyHunter and install it on your computer. SpyHunter Download Link ( It is safe and free for downloading ). Please close down any open documents and running programs before you go to install it. Otherwise, it would forcibly terminate those programs.  


    2.Launch it directly and click the “Scan Computer Now” button to have a fully scan for your computer.  

    click scan now button of SpyHunter


    3. Please click “Fix Threats” button to remove the threats found on your computer. 

    Click “Fix Threats” button of SpyHunter


    4. You would be asked to registered the full version before you can remove the PC threats. 

    Register SpyHunter


    5.Please restart your computer and let the changes take effect after you remove the malware with the program. 


    Now, the Backdoor.Runnet should be removed completely and successfully from your computer. We highly suggest you keep the SpyHunter running on the backstage to protect your computer from any potential malware threats. 


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    Video Guides to Remove Backdoor.Runnet on Windows PC

    To conclude


    Backdoor.Runnet should be removed successfully from either Mac or Windows PC after you complete the instructions above. Never be hesitate to remove spyware program once you find there is any on the computer. As mentioned before, if you keep the spyware program and run it frequently, you absolutely will get more virus infections such as adware, browser hijackers, Trojan and even ransomware (FBI money back virus). FBI money back or other similar virus can be regards as the highest Internet threats towards computers because they will lock up the screen and disguise the warning message as sent by FBI to threaten you to pay the money. Therefore, it is really necessary for you to remove Trojan virus especially Backdoor.Runnet from the Apple OS X and Windows immediately. This also will help you prevent attacks from other potential viruses.  


    Now, it is time for you to learn how to avoid virus infections and how to protect your computer in the future. We all know that “Prevention is better than a cure”. Do not expose or give any chances to cyber criminals who covet users personal information. 99% of the malware publishers will steal and sell users’ privacy or even control the computer remotely to obtain their illegal benefits. You are totally monitored by those hackers if you get malware on the computer. Everything of you and every behavior from you would be recorded and delivered to everywhere in the world. You never know who is hiding in the darkness; You never know how your money has gone in early morning ; You never know..... 

    types of users who get virus easily


    Be more cautious when you are online. Here comes the tips about what you should “ To Do” and “Not to Do” when surfing the Internet. 


  • Download programs from the official website or trustworthy download site.
  • Install security software to prevent virus infections and scan your computer regularly
  • Do not download or click any attachments from unknown email
  • Scan executable files with security program before you run it
  • Never visit gamble or porn website
  • Reject any requirement of remotely controlling unless they from authoritative organization


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