Please help me remove Trojan.Multi.Cerstor.a virus from my computer. My Norton pops up just now to tell me that my computer now is in high risk. I guess this should be due to pop-up from a strange website yesterday when I clicked on something unknown. Now I have not figured out a way to remove this virus, as my Norton cannot help me delete it. Is the version of my Norton not the super one to deal with stubborn virus? I tried to enter registry editor to look for the suspicious files, but don’t figure out which one is. Please help me here, thanks.

Trojan.Multi.Cerstor.a Virus Description:

Trojan.Multi.Cerstor.a virus is infectious Trojan horse to infect windows computer. Once this virus gets on your computer, it will inject malicious plugin as code to implant itself deeply into system. And it affects system start-up items and registry editor. It changes or disables crucial system files, processes or programs. Then you will find that some program cannot run or run in an abnormal way, for example, it may say this program does not exist or an error occurs to block this program to run. In this case, the executable files or processes of that program have been severely compromised, changed or disabled by this Trojan horse. Sometimes, you may see the system error occurs as soon as you start up computer to block you enter computer due to Trojan.Multi.Cerstor.a virus. Some victims said this virus can lock their keyboard and mouse to block them to do any other tasks online, so that it take control of users’ computer and do whatever they want to do, for example, it helps hackers to steal important and valuable data stored on computer for illegal purpose. That means this virus will be a big threat to your personal privacy. Even worse, this virus can act as a backdoor to bring other infections to computer to destroy system, therefore, please remove it soon as you find it on your machine.

Trojan.Multi.Cerstor.a virus is designed and spread online by cyber criminals. And we usually depend on computer and Internet to finish our daily work and enjoy entertainment, which will increase the chance for this virus to get on users’ computer. For example, this virus can be added into free downloading software by cyber criminals to spread online. When PC users download and install the program they need, this virus will come at once. So you need to download those free software from legit resources and during the installation, you should always choose customized installation not the default one, and you can choose to not install those additional apps you don’t want. Besides, malicious websites are also the platform for Trojan.Multi.Cerstor.a virus. If you accidentally visit those malicious websites and click something on the webpage, this virus will also easily come into your machine, as cyber criminals inject this Trojan virus into those webpage in different attractive form to attract you to click on. In addition, if you receive and open an email or message from an unknown sender about saying something like ‘Download and open this attachment for a big surprise’ or ‘Click the following link to get unexpected gift’, this virus will immediately invade your computer. Therefore, to ensure the safety of your system and personal privacy security, please behave well yourself and be careful of what you perform.

Some Traits about Trojan.Multi.Cerstor.a 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. 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.Multi.Cerstor.a 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 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 virus locate. 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.Multi.Cerstor.a 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.Multi.Cerstor.a 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 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.Multi.Cerstor.a virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Tony Shepherd & last updated on May 27, 2015 5:04 am

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