Instructions to Completely Remove Backdoor.Grexden - Remove Trojan Horse from Your Computer

Do you feel that it takes a long time to load when you try to launch programs on your computer? Your antivirus scans the system and finally finds out all the malfunction of application is caused by Backdoor.Grexden? You have been trying to remove this infection with your antivirus but it comes back after you rebooting the computer? How to get it completely removed?

Friendly Reminder: Please try a professional trojan horse removal tool to remove this trojan horse once you can't remove it through the manual removal guide below.

Definition of Backdoor.Grexden:

Backdoor.Grexden is a disgusting Trojan horse that is created by cyber criminals to perform malicious tasks on the infected PC. Commonly, if you run junk email attachments, download free software from unsafe sources, browse hacked websites or click on the malicious links posted in forums, you are likely to download this Trojan onto your computer. We have to be wary of it when we are surfing on the cyber space.

Another case is that this Trojan implants into a spam email enclosure, when users receive and open it, the Trojan will sneak into system or download automatically into disk. Then it begins to perform the harmful payloads according to the command sent by the remote hackers. It modifies Widows Registry keys to be activated automatically every time you power on the infected computer and interrupt the normal work of your computer. Furthermore, the affected system will be frequently halted without any reason. For instance, if you double click to run a program or visit a site, you will need to spend a long time waiting for the reaction. Sometimes, the running programs often exit automatically without warning and the system even restarts suddenly, which damages the system severely. Furthermore, cyber hackers have the ability to input malicious function into the Trojan with the purpose of empowering it to create background network which can drop further dangerous malware onto the computer. This means the criminals will know whatever you do on the internet. Then, they can use that information to do illegal things. It should be removed immediately.

Backdoor.Grexden can’t be removed from system easily due to its ability to hide from the detection and deletion of antivirus. If you want to completely eliminate it, you may consider eradicating it immediately with manual removal solution. So if you want to remove it safely and quickly from computer, please resort to effective method as listed below to remove it.

The following guidance needs professional knowledge about computer system. Taking the professional removal tool into account would be a better way.

Manually Remove Backdoor.Grexden Trojan Horse Virus

Backdoor.Grexden is an offensive Trojan horse which can install itself into the computer system without your consent or awareness. It causes your system to function abnormally and makes it more vulnerable by bringing additional threats. Your private data will be stolen by promote hackers with the help of the Trojan. Hence, the earlier you remove the threat, the less loss you will suffer from. You can refer to the following instructions to remove it.

Step1: Restart your computer in safe mode with networking.

Turn on the power of your computer, press "F8" key continuously before windows starts up. Then, you will see Windows Advanced Option menu. Use the Up-Down arrow keys on your keyboard to highlight "Safe Mode with Networking" option from the list and hit "Enter" key to go on.

Step 2: End relevant Process

Keep pressing CTRL + Shift + ESC keys together to launch Windows Task Manager. Press its Processes tab, find out and click End Process button block the processes related to this Trojan virus.

[Random.exe]

Step3: Delete Backdoor.Grexden files from PC:

Navigate to directory and delete all related files below:

%windows%\system32\ Backdoor.Grexden
%documents and settings%\all users\ application data\ Backdoor.Grexden
%program files% Backdoor.Grexden
%Desktopdir%\Backdoor.Grexden.lnk
%AllUsersProfile%\{random}\
%AllUsersProfile%\{random}.lnk

Step 4: Delete registry entries from Redistry Editor

Pressing "Windows+R" keys at the same time to bring up run command box. Type "regedit" into the run box and click "Ok" button to continue. If your operating system is win7, just type “regedit” into the "Search programs and files" box in the Start menu. Remove registry keys added by Backdoor.Grexden in Registry Editor

Microsoft\Windows\CurrentVersion\Internet Settings\{ Backdoor.Grexden }
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run Regedit32
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\Current\Winlogon\”Shell” = “{random}.exe”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\ DisplayName Backdoor.Grexden virus
Note:Of course, it's highly recommended that you should remove trojan horse in a professional way if there are sill some similar problems with your computer.

On the whole, Backdoor.Grexden is a precarious Trojan horse which can be utilized by hackers to collect personal privacy from targeted computer. To develop good habits is favorable to prevent getting infected. It has the ability to decrease the overall system performance by leading to constant system freezes and shuts it down unexpectedly no matter what you are doing. The hackers is able to intrude on the system to pilfer your sensitive information for evil purpose. Our suggestion is that you remove this malicious Trojan as quickly as possible. Besides, it's very important for you to to use a professional malware removal tool to prevent all the possible threats.