What is the best solution for this JS:Iframe-CLO [Trj] virus? I have used several kinds of methods posted on the Internet to get rid of it, but none of them can work, also, I have installed some types of anti-virus programs on my machines to remove it with no luck. How can I eradicate this infection completely and permanently? This virus has already messed up my whole computer, I really need help to take it off from my machine. Please help!

Brief Introduction to This Trojan

JS:Iframe-CLO [Trj] is a tricky and dangerous Trojan horse infection. It is a kind of computer infection that can make damages to the whole system with many aspects. It is designed by cyber criminals who want to access target computers for evil purposes. Technically speaking, this Trojan is a baleful infection that can help other kinds of computer viruses to come and make damages. In order to escape from being caught and removed by anti-virus programs, this Trojan is designed to disable security systems once it infiltrates target computers. Under this circumstance, without any protection methods, the infected computers can be completely compromised, and this can make the situation even worse as most of viruses can come to the affected computers through the network.

This JS:Iframe-CLO [Trj] virus can be widely spread on the Internet by cyber hacker. They can put this infection onto the pages which have already been hacked by them. So, when innocent computers users come to visit the corrupted websites, their computers can be targeted by this infection instantly. Many legit websites can be attacked by cyber hackers and even some famous pages can be modified and controlled by them if they find the loopholes on the pages. Also, this infection can be spread via software, that’s to say, people can get this infection when they install programs on their machines. Cyber criminals can bundle this infection with other programs and publish them on the web for people to download and use.

When this malicious JS:Iframe-CLO [Trj] sneaks into target computers, it will bring a lot of troubles to the system. Firstly, it can make changes to the system registry which can make sure it can be activated from the start up. Usually, users will never notice when programs are running on the background, so with this Trojan running on the machines, users will notice that their computers can be slower and slower and they would have to wait a long time until other programs are loaded. Also, people can get black screen and blue screen of death a lot of times which can lead to hardware damages during the use.

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:Iframe-CLO [Trj] 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 not easy for every computer users to fix this JS:Iframe-CLO [Trj] virus problem easily as it can hide deeply in the corrupted computers. Many system files can be damages which can make the computers get many system errors. It can be really bad to have this Trojan virus on your computer as it can help other viruses to come and even assist cyber hackers to come to your computer and steal privacy from your machine without known. It can even cause hardware problems to make your computer useless.

Suggestion: To follow removal guide that mentioned above, a level of computer knowledge is needed. Still can’t get out of JS:Iframe-CLO [Trj]? Contact online experts for help now!

Published by Tony Shepherd & last updated on June 1, 2015 5:39 am

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