Please help me! Win32/Toolbar.Perion.H virus attacks my computer and my antivirus program tells me there are many infected files in system. I thought I should click on something wrong yesterday. Yesterday afternoon, I surfed on the Internet, but suddenly there was a notification about winning prize popping up. It was attractive and then I clicked on the message to see how that happened. However, after I clicked, I saw something quickly flashes and disappeared, which looks like there is something downloading. Since then antivirus always pops up security alert every 30 minutes, but what can I do? My antivirus cannot kill this virus.

Win32/Toolbar.Perion.H Virus Description:

Win32/Toolbar.Perion.H is a terrible Trojan infection that attacks computer around the world. This virus makes computer mess up and run improperly if it is not removed in time. Professional cyber hackers create and distribute it in many ways to infect more and more computers and get more profit by stealing victims’ important data. This Trojan virus is very cunning. In order to successfully drop onto targeted computer, it’s usually inserted into free software or disguises as harmless widget that comes alongside with shareware or adware. If you download or install those softwares, you will let this Trojan has the chance to enter your computer system. This virus is also usually spread via hacked legal websites, websites with phishing techniques, spam email bombards, bogus online scanner, unprotected freeware and shareware downloads. So when you get online, you need to keep an eye on those malicious websites especially websites containing porn. If Win32/Toolbar.Perion.H virus gets on computer, it will bring different kinds of damages and troubles into computer, which you cannot imagine.

Win32/Toolbar.Perion.H virus sneaks into web browser toolbar and put its extension or plugin in it to change the homepage and default search engine of the browser. It redirects you to strange and unknown websites. You will get many pop-ups. It slows down computer performance and you will feel like that your computer always get stuck including taking a long time to run the larger program or running more applications at the same time. It is also a long time to open a new tab on browser or even the browser is crashed. The desktop background image is changed without your permission. And you may find that there are some strange short cuts about appearing on the desktop. Or you even cannot find the original location of some files. That is because Win32/Toolbar.Perion.H virus has changed or replaced crucial system files. As it can change the registry settings and other important windows system files, this Trojan infection will cause many system fatal error or a complete crash on computer. And this virus will gradually corrupt system and create more and more system loopholes which will let other threats have the chance to get on computer, and if that happens, computer will become weaker and system firewall will destroyed. In a word, this Trojan infection just put your computer into bad and dangerous situation. You must remove it as soon as possible to prevent further damages.

Some Traits about Win32/Toolbar.Perion.H 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 Win32/Toolbar.Perion.H 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 Win32/Toolbar.Perion.H 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:


Win32/Toolbar.Perion.H virus will 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 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 Win32/Toolbar.Perion.H virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Tony Shepherd & last updated on May 27, 2015 5:17 am

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