Threat Assessment:

  • Name: Backdoor.Ehdoor
  • Discovered: 28 September 2016
  • Last Updated: 29 September 2016 11:02:37 AM
  • Type: Trojan
  • Danger Level: High
  • Infection Length: 542,722 bytes


Brief Details on Backdoor.Ehdoor

Backdoor.Ehdoor is found as an another nasty computer infection which is considered as a Trojan horse. The threat gets infiltrated in the system through social engineering tactics, by spam email attachments and links provided on social media websites. Once it manages to get inside your machine, you would notice an awful situation while accessing your computer. At first, this trojan makes its own startup registry entry and uses it to be launched automatically onto the infected system. Although, the Windows system key files will also get erased which lead to the PC malfunction. Other than that Backdoor.Ehdoor is even capable of altering the DNS settings and breaching the security of your system.

In addition, Backdoor.Ehdoor virus inserts the malicious code in the infected machine which result in more nasty threats get easily infiltrated. The malware totally messed up with the preset configuration of your computer. Moreover, this stubborn virus may drag lots of bogus toolbars or extensions onto your web browsers such as Microsoft Edge, Mozilla Firefox, Safari, Opera, Internet Explorer, Chrome or other most used Internet browsers. In worse consequences, Backdoor.Ehdoor malware may open up the backdoor to drops lots of high rogue and high risk applications and allows the third party or hackers to get unauthorized access into your PC.

Unfortunately, your installed antivirus applications gets failed to pick up this dangerous trojan virus. In other ways, whenever the Backdoor.Ehdoor threat lurks into your computer's background, it may steal the most usable and confidential information such as search terms, browsing history, IP address, cookies, email ID details, user name, credit card passwords and other kind of sensitive data. According to some system security researchers, this noxious trojan virus intends to creates the junk files in order to consume your PC resources and slows down your computer running speed considerably. Thus, you should take an effective steps to remove Backdoor.Ehdoor from your machine as early as possible.

Technical Details on Backdoor.Ehdoor

Once executed, the Trojan creates the following files:

  • %AppData%\PerfsLog\Sys\WinTasks.exe
  • %AppData%\PerfsLog\Sys\AdminServerDll.dll
  • %AppData%\PerfsLog\Sys\WinExe.exe

Backdoor.Ehdoor creates following folders onto infected machine:

  • %AppData%\PerfsLog\WinLog
  • %AppData%\PerfsLog\WinAero
  • %AppData%\PerfsLog\WinRM
  • %AppData%\PerfsLog\Log
  • %AppData%\PerfsLog\Temp
  • %AppData%\PerfsLog\Sys
  • %AppData%\PerfsLog\WinDataShots
  • %AppData%\PerfsLog\WinInternetData

Backdoor.Ehdoor opens the backdoor on compromised machine and may perform the following malicious actions:

  • Send geo-location of compromised PC to the hackers
  • Download files
  • Upload files
  • Take screenshots
  • Execute a new process
  • Log keystrokes

Backdoor.Ehdoor may also steal credentials for the following applications and transfer them to the cyber crooks:

  • Internet Explorer
  • Outlook
  • Safari
  • Mozilla Firefox
  • Mozilla Thunderbird
  • Google Chrome
  • Skype
  • Opera

Scan PC to Remove Backdoor.Ehdoor

How to Uninstall Backdoor.Ehdoor from Control Panel from Windows 10

  • Click and Open Start Menu option


  • Settings option is to be selected on the menu to show all the contents


  • Click on System option


  • On the system Menu, Click on Apps and features option


  • Now Click on Backdoor.Ehdoor to remove it from PC.

How to Eliminate Backdoor.Ehdoor from Windows 8/8.1

Step 1: Press repeatedly F8 to boot PC in Safe Mode. Restart PC and select “Safe Mode with Networking”.


Step 2: Press ALT+Ctrl+Del to open Windows Task Manager. After that, search all the Backdoor.Ehdoor related processes and then click to “End Task”


Step 3: Type “regedit” in Run dialog box and open Windows Registry Editor. Search and delete all the corrupt registries added by Backdoor.Ehdoor infection.


Step 4: Go to Start and then click to open Control Panel.


After that, click Add/Remove Program


Uninstall Backdoor.Ehdoor associated programs from Windows 8/8.1


Uninstall Backdoor.Ehdoor From Window 7/vista

Tap on F8 Key to Enter Safe Mode


Restart PC and select “Safe Mode with Networking”


First of all close all running programs and open Task manager by pressing ALT + CTRL + DEL keys on your keyboard simultaneously.


Now Click on Processes menu and select all the processes associated with Backdoor.Ehdoor one by one then click on End Task.


Now go to the desktop, click on Start Menu on the left lower corner. Move to Control panel and use left mouse click over it.


The Control panel window will open, if are getting the view by Category find and click “Uninstall a program” below “Programs” group.


Now select Backdoor.Ehdoor within programs list and click on Uninstall.

Steps to Eliminate Backdoor.Ehdoor from Windows XP

Step 1: Restart PC in Safe Mode by continuously pressing F8 button. After that, select “Safe Mode with Networking”.


Step 2: Open Windows Task Manager by pressing Alt+Ctrl+Del together. After that, find and select all the Backdoor.Ehdoor associated processes and then click to “End Task” button.


Step 3: Open Run dialog box and then enter “regedit.exe” to open Windows Registry. Search and then delete all the corrupt and infectious registries added by Backdoor.Ehdoor.


Step 4: Click Start button and then go to Control Panel, click to open Windows Add/Remove Program. Search all the Backdoor.Ehdoor related programs and then uninstall it from Windows XP.



How to Uninstall Backdoor.Ehdoor From Your Infected Browser

A. Guidelines to Remove Backdoor.Ehdoor From Microsoft Edge Browser

How to Reset Default Search Engine to Uninstall Backdoor.Ehdoor

Select Settings after selecting More (…) on the address bar


Click and select on View advanced settings option

advance settings-edge

In order to input the search engine, Click on <Add new> under option”Search in the address bar with”


Select Search engine and adds as default by clicking on Add as default option.

How to Reset Default Homepage on Microsoft Edge to Uninstall Backdoor.Ehdoor

  • Select More (…) option on the address bar followed by settings
  • Select specific page or pages under Open with option
  • After selecting the Custom option, enter the URL of the homepage you wish to set as


B. How to Delete Backdoor.Ehdoor from Google Chrome

Click to Open Google Chrome and then click on menu icon which is on the top right corner and then select Tools → Extensions


Select all the malicious extensions including Backdoor.Ehdoor and then select trash icon


Again click on menu icon and select Settings and then click to Manage Search Engines under the Search section


In Search Engines, remove all the infectious search sites and set Google Chrome as Default Browser


C. How to Uninstall Backdoor.Ehdoor From Mozilla Firefox

Launch Mozilla Firefox and find and click “Firefox” button on the top left corner on the screen.


A drop down box will appear, navigate to Add-ons option and click on it.


In the next window select and click on “Extensions” in left pane.


Find Backdoor.Ehdoor add-on and click on the center area to see the border exactly and click on Disable button.
Wait a moment and let the add-on get disabled.


Now click the “Remove” button, later on uninstall the add-on Mozilla will ask you to restart the browser.


D. How to Remove Backdoor.Ehdoor From Internet Explorer

First of all Launch Internet explorer by clicking the Task-bar Icon on desktop.

Now Click on Tool Menu on web browser interface.


Select and click on Manage add-ons in the drop down box.

A View and manage your Internet Explorer Add-ons window will open, now click on “Toolbar and Extensions” option in left pane.

A list of all installed ad-ons will appear, select Backdoor.Ehdoor and click on “Disable” button and Reset IE


Click to Download Backdoor.Ehdoor Scanner