Hi, how to deal with Trojan.Encoder.6491 virus? Some of files are encrypted by this Trojan horse so I can’t open some programs or read some documents. I very worry this Trojan virus can create more damages to my computer system, but I don’t know where to start to get this virus removed completely.  I am actually not a computer literate and a little bit afraid I will do something wrong to result in more system problem if I clean this virus by myself. So do you have any solution to help me out of this issue?

Brief Introduction of Trojan.Encoder.6491 Virus

Trojan.Encoder.6491 virus is an extremely harmful and vicious Trojan horse to severely attack Windows computer. Once it infiltrates into your system, it accesses the important system areas like registry, Users folder, Windows folder or Windows task manager to implant its malicious executable files. Some Windows files will be disabled or encrypted by this virus. Programs will run improperly or even have been deleted by this Trojan.Encoder.6491 virus. Web browser will be affected by this virus a lot. Homepage and search provider would be changed by some malicious extension or toolbar. Pop-ups are all over on the webpage you visit.  Some exe files are displayed on desktop but can’t be deleted. Wallpaper of desktop will be altered without your permission. Some programs or documents on the desktop are disappeared. Many junks will be created by Trojan.Encoder.6491 virus in system to take up too much system resources. If you check the CPU usage percentage, you will find the percentage become higher even up to 100%, but in fact, you didn’t open many programs. Computer performance becomes poor, so you will feel computer runs slower and slower. System loopholes will become more and more, and even worse this Trojan horse will introduce other malware or virus into system.

Trojan.Encoder.6491 virus must be eradicated as soon as possible, or it will gradually corrupt computer’s troubleshooting mode like Safe Mode. If troubleshooting mode is damaged severely, your computer will have a poor ability to troubleshoot and diagnose problems. Fatal errors will occur if computer security becomes worse. Antivirus program would also be damaged till it becomes useless. Besides, this Trojan horse can take control of your computer and let remote hackers to access your important personal information like credit card details, passwords, online banking info or your business trade data saved on computer disks. Cyber hackers usually sell or use your personal data illegally for illegal profits. That is the reason why cyber criminals create such an aggressive and hazardous Trojan virus Trojan. Cyber hackers’ final goal is to get valuable data for more illegal money. Therefore, Encoder.6491 virus is a big threat to personal data safety. And to prevent this kind of dangerous Trojan horse from getting into your computer, you should avoid visiting unsafe sites, clicking on random popups and links, and opening spam emails and so on.

Some Traits about Trojan.Encoder.6491 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 Trojan.Encoder.6491 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 Trojan.Encoder.6491 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”.

Task manager


>>>>>> 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”.

start menu


>>>>>> You will need to find out the suspicious registry files related to this Trojan.Encoder.6491 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 Trojan.Encoder.6491 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:).

Hard diskdrives

>>>>>> Basically speaking, all the related files of  Trojan.Encoder.6491 Virus will be located in Windows > System32. Find out all the files of the Trojan 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.

System 32

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


Trojan.Encoder.6491 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 Trojan 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 Trojan.Encoder.6491 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 this Trojan Virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Tony Shepherd & last updated on October 24, 2016 5:07 am

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