Hi, there, I’ve got a virus called Backdoor.Preft!gm in computer system. Avira has reported this scanning result again and again. I just wonder every time I use Avira to delete this virus, but why Avira cannot delete this virus completely. When I go to system files, I am confused a lot as there are bundles of files and which one is the virus thing. I don’t know computer a lot and am afraid will mess up computer. do your computer experts help me catch and remove this virus completely.

Backdoor.Preft!gm Virus Description:

Backdoor.Preft!gm virus is a kind of backdoor Trojan computer infection which usually affect windows computer. Cyber criminal design this virus and spread it online worldwide in order to access user’s computer to get user’s important data with help of this virus. Cyber hackers will distribute this Backdoor.Preft!gm virus on unsafe website in the form of flashing picture, pop-up ads or fake message banner to attract computer user to open those stuff thing. When people open those virus-infected things, the virus or malware will soon get installed into system within a few seconds. So when you surf on the Internet, please don’t visit unsafe webpage, or you would get some unknown threats into computer. Besides, don’t go to download software from unlicensed resources, as much software from unknown resource is bundled with virus or malware extension. If you download program, you should choose customized installation to check carefully what useless and unnecessary attached program is going to get installed. Backdoor.Preft!gm virus also can be spread via many other ways, so you should be cautious.

Backdoor.Preft!gm virus will create harmful activities to computer system once it gets onto your computer.  This virus will soon change your web browser settings then hijack the homepage and modify the search tool. In this way, it can totally control your web browser at any time. What you search on the web browser, you cannot get the right search result but will be redirected to other malicious sites. Even worse, it uses its cookies to track your online history and record important information. In system, Backdoor.Preft!gm virus can disable some crucial system files or program to degrade computer performance. Once some important system files are disabled, computer will show some error codes. Computer would not run normally. Even worse, when some crucial files are missing, computer cannot boot up or shut down properly. When this virus damages your antivirus program, the firewall of antivirus will be destroyed. And then this virus will open backdoor to bring other virus or malware infection into computer to further mess up system. If you cannot eradicate Backdoor.Preft!gm virus  sooner, more threats will get into system to further degrade computer performance.

Some Traits about Backdoor.Preft!gm Virus

-Can slow down the performance of the computer, or even blue screen.

-Can create many junk files which occupy a lot of space in hard drive.

-Can download other malicious programs into computer, which make further damage.

-Can redirect you to pages you don’t want all the time no matter what you are doing.

-Take a long time to turn on or shut down your computer

-Your sensitive information can be stolen by hacker who can access to your computer with the help of this Trojan.

-May pretend as an anti-virus program and cheat you that computer is in dangerous, and ask you to pay to remove the threats.

Warm prompt: It’s complicated for people who are not computer savvy or not familiar with the virus to remove the Backdoor.Preft!gm virus. You can contact YooCare/YooSecurity PC professional online service for help:

Removal Guide for PCs with Windows OS

There is a removal guide of Trojan provided here; however, expertise is required during the process of removal, please make sure you are capable to do it by yourself.

>>>>>> Press Ctrl+Shift+Esc keys simultaneously to get the Task Manager to stop the active processes of Backdoor.Preft!gm virus. To do this, you will need to click the “Processes” tag at the top then find out suspicious processes and right click on them and select “End Process”.



>>>>>> Click “Start” menu at the lower left corner and type “regedit” in the search programs and files box and press Enter key. Then you will open the “Registry Editor”.



>>>>>> You will need to find out the suspicious registry files related to this Backdoor.Preft!gm virus in the Registry Editor, They are usually located in: HKEY_LOCAL_MACHINE > SOFTWARE. You need to distinguish them from their “Name” and “Data” at the right column. All of them will be randomly distributed. If you are not good at this, ask for an expert for help.

registry editor

>>>>>> After you find out the suspicious registry files, you need to find out where the .exe files of the Backdoor.Preft!gm virus locates. Usually, they will be in the operating system drive. To open it, you will need to click Start menu > Computer & My computer. Generally speaking, the Operating System drive is Local Disk (C:).


>>>>>> Basically speaking, all the related files of Trojan virus will be located in Windows > System32. Find out all the files of the Backdoor.Preft!gm virus and delete them. Make sure that all the files you deleted are viruses, but not the files of the operating system. Any mistakes will cause data loss even system crash.


Video of Key Steps on How to Modify or Change Windows Registry:


Backdoor.Preft!gm virus can severely attack your computer once it gets on your PC. It corrupts your system files, weakens the security level of the infected computer and modifies all your key registry settings as well as disables your firewall because of its root-kit. The CPU usage percentage will become higher than before, which will cause constant blue or black screen death and system freeze. this Backdoor.Preft!gm virus helps cyber criminals remotely control the infected PC. So hackers can do anything on your PC and get any information from your computer or by tracking your online history. And users’ personal information like credit card, bank account details, log-in passwords or other financial information could be leaked out. Victims of this Backdoor.Preft!gm virus will suffer from financial loss. This Trojan must be removed as fast as possible to avoid further damages if you detect this nasty thing on your computer.

Warm prompt: If you are not computer savvy or not familiar with the virus to remove Backdoor.Preft!gm virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Tony Shepherd & last updated on December 26, 2015 5:04 am

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