My laptop was hit by Trojan:Win32/Colisi.F! Norton just told me that many folders and programs are infected with it, even my pen driver plugged in that laptop gets this virus. It seems this virus is very infectious and aggressive. I know this is Trojan horse infection and my Norton cannot deal with it. So I try to go into registry editor to find out files related with this virus, but don’t know which one. I am afraid my stupid action will kill the normal system files. Could you please help me get rid of this virus completely?

Trojan:Win32/Colisi.F Virus Description:

Trojan:Win32/Colisi.F is categorized as a Trojan horse which mainly attacks windows computer like windows 7, windows 8 or windows 10. This virus is created by those hackers in order to control the targeted computer and help hackers to steal important data. Once those hackers get your important data like banking details, you may suffer from financial lost in future. Besides, this virus can hijack your web browser to track all your online trace and keep a record of what your do and fill in online, and then send those important privacy to hackers. In order to prevent this virus from getting on your computer to pilfer your data, please don’t click on anything suspicious and unsafe from unreliable resource to bring this virus. This Trojan:Win32/Colisi.F virus is usually hidden on unsafe sites where there may be different kinds of attractive pop ups. Those pop ups usually contains virus or malware. And once click will activate and install the virus or malware into system soon.  This virus can be spread through many other ways online. What you should do is to keep cautious with your online behavior.

Trojan:Win32/Colisi.F virus will definitely do harm to computer system if you cannot remove it as soon as possible. It will change crucial system files to degrade system function and slow down computer performance. When some system files or processes disappear, computer will get some system errors. And that will have some bad effect on booting up. Computer may not start normally or cannot shut down or even computer will restart automatically frequently. This virus will change the HOST files to block you access the Internet. Sometime, computer cannot connect with Internet. In system, this virus will take much system resource and occupy more Internet space. And computer will run slower or even get stuck or crash down often. Due to this virus, some strange shortcuts show on desktop and cannot be removed. Even the desktop background is changed without your permission. Sometime, this Trojan:Win32/Colisi.F virus can freeze your keyboard or mouse to block you access computer. Even worse, this Trojan horse can attack troubleshooting mode to further corrupt and destroy computer system. Therefore, please delete the Trojan horse as soon as possible.

Some Traits about Trojan:Win32/Colisi.F 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:Win32/Colisi.F 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:Win32/Colisi.F 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 Trojan:Win32/Colisi.F 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 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 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.


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


Trojan:Win32/Colisi.F 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 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 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 Trojan:Win32/Colisi.F virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Tony Shepherd & last updated on August 24, 2015 9:38 am

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