My computer is infected with a virus named JS.Downloader!gen11. I can feel that my computer is slower and slower obviously. When I tried to use my security tool to remove this virus, I have noticed that the tool can only quarantine the virus. I don’t know what to do as the virus warning always pop up every time I restart my computer. I know nothing about the computer, please help!

Brief Introduction to This Trojan

This JS.Downloader!gen11 is a malicious Trojan horse infection that designed to corrupt computers so that cyber hackers can get illegal benefits from innocent computer users. Also, the infected system can be messed up completely as this Trojan is created to damage the system and help other kinds of computer infection to come and make more troubles. If this Trojan horse cannot be removed in time, the condition of the infected computers can be worse and worse as endless troubles and problems can be generated by this virus. It is easy for computer users to be targeted by this virus as cyber hackers have a lot of ways to spread this infection without being detected. Also, this virus can be able to bypass the detection of many anti-virus programs.

This JS.Downloader!gen11 virus can be forged to be an attachment and implanted in E-mails. Cyber hackers can send the spam E-mails to computer users randomly. People who receive those E-mails must no open and click anything on them as they can redirect users to other dangerous pages which can contain other kinds of computer malware. What’s more, cyber hackers can design this infection as a program for people to download and install. Some inexperienced computer users don’t pay too much attention on the source where they download programs, which means they may come to some unsafe websites to download programs with this virus bundled with.

It is not an easy thing for many anti-virus programs to get rid of this JS.Downloader!gen11 infection completely. This Trojan can spread it to many branches to the systems and infect system-related files. If security tools cannot remove it completely, it can always restore itself and keep causing problems to the entire systems. The system registry can be added with its vicious data which can make it activated from the startup. PC users can encounter many unwanted system errors which can make system get black screen or blue screen of death often. With the help of this virus, cyber hackers can access the infected computers secretly and steal personal information saved on the systems without users’ notice.

Some Traits about This Trojan

-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.
-Your sensitive information can be stolen by hacker who can access to your computer with the help of this Trojan.
-Cay give you many redirects all the time no matter what you are doing.
-May pretend as an anti-virus program and cheat you that computer is in dangerous, and ask you to pay to remove the threats.

NOTE: If you find any of these symptoms on your computer, that proves your PC is under attack and seriously infected. If you are not a computer savvy, Please contact YooSecurity Online PC Experts to remove this JS.Downloader!gen11 for you.

Manual Removal Guide of Trojan (For Computer Literate)

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.

Step 1: Find Ctrl, Alt, and Delete these 3 keys and then press them together to open task manager to end the process related to this Trojan, the name of the process of it is random.

XP task manager

Step 2: Try to find Folder Options in Control Panel, select the View tab, and then tick Show hidden files and folders and non-tick Hide protected operating system files (Recommended) and then click OK.


Step 3: Try to find the files which relate to this Trojan, and delete them all.

Step 4: Click on Start button at the right lower corner, then click on Control Panel


Then you will come to the Control Panel windows, click on Add and Remove Programs


Then try to find the program which relates to this Trojan, highlight it and choose Remove, the program’s name is random.


Step 5: Click on Start button or press Win+R, then type regedit in the box to open Registry Editor, after that, try to find
C:\Users\profile name here\AppData\

Similar video guide to modify Windows registry:


It is a must for computer users to eradicate this JS.Downloader!gen11 virus as soon as possible. This virus can cause great damages to the whole systems. PC users will get a lot of problems and troubles during the use. When this Trojan is activated on the background, it can help many other viruses to be downloaded automatically. People can get a lot of pop-ups which are generated by this Trojan virus as well. The performance of the infected machines can be slowed down sharply. In order to keep your computer clean from virus corruption, once you find this virus on your machine, you need to take immediate action to get rid of it.
Suggestion: To follow removal guide that mentioned above, a level of computer knowledge is needed. Still can’t get out of JS.Downloader!gen11? Contact online experts for help now!

Published by Tony Shepherd & last updated on March 14, 2016 6:13 am

Leave a Reply