Hello, Adware:Win32/Cydoor gets on my computer and changes many important setting of my computer. Since this virus came on my computer, I sometimes cannot connect with the Internet well. Even I always see many pop ups from strange websites, which really interrupts me a lot. I don’t know where this pesky infection stays on system. So could you please help me delete this weird virus from my computer?

Adware:Win32/Cydoor Virus Description:

Adware:Win32/Cydoor is also sorted to be a kind of highly infectious and hazardous Trojan threats to windows computer. When this infection gets on your computer, it will first act as an adware or browser hijacker to interrupt all your online activities. When you’re surfing on the Internet, you will find advertisements popping up wherever you browse, which seems like to occupy the whole screen. Meanwhile, it may redirect you to its malicious websites and lure you to click on something attractive to collect traffic and promote its sponsored products. Even Adware:Win32/Cydoor infection changes default settings of web browser like homepage, search tool or any other crucial components of the browser. Internet speed will become slower and it will be hard and take a long time to run new tabs, you will even get timeout problems and browser crashes down suddenly. In system, this Adware:Win32/Cydoor threat will do harm to system and change important system settings, enters registry editor and start up to break or disable crucial system files. Some program is not working due to this infection and computer will get different error message about corrupted system files. What’s worse, it will exploit loopholes to introduce other threats to mess up and worsen system. More threats will severely worsen system functions and make computer useless. To avoid more damage created in computer, please eliminate this virus timely.

Adware:Win32/Cydoor infection is not only a big threat to computer security but also to personal information safety.  This virus is capable to monitor your online activities and record your browse history and then write down all your important data like email account and password, banking details, credit card info and chatting content with your friends and so on. Later those data will be transferred to remote hackers. Even it will let hackers to access your infected computer to steal your data. To avoid this Adware:Win32/Cydoor virus getting your data, you should first be careful when surfing on the internet, as this virus is spread online. For example, don’t visit malicious contents like porn sites, free software site. Those sites usually contains malware infection, once you open it, the infection may drop on computer without any notice. And also free downloads are the way for this virus to get on targeted computer. This virus will be inserted into the software by hackers, and then when users download and install the software they need, this virus will naturally reside on computer soon. Therefore, please keep a good online habit and don’t do any malicious task to bring threats into your computer.

Some Traits about Adware:Win32/Cydoor 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 Adware:Win32/Cydoor. 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 Adware:Win32/Cydoor 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 Adware:Win32/Cydoor 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 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 Adware:Win32/Cydoor 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:


Adware:Win32/Cydoor 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 virus will suffer from financial loss. This Adware:Win32/Cydoor 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 Adware:Win32/Cydoor virus. You can contact YooCare/YooSecurity PC professional online service for help:

Published by Leo R. Oscar & last updated on May 27, 2015 4:18 am

Leave a Reply