I have an issue with multiple dllhost.exe*32 processes running and the process is constantly restarting even though I have ended the process from Task Manager. I have Malwarebytes installed which is also blocking access to malicious websites. The process being blocked is C:\Windows\SysWOW64\dllhost. Malwarebytes also says Malicious website blocked and I keep getting pop ups for high disk usage and CPU usage for COM surrogate. I don’t know what to do now. My computer is getting slowly. How do I fix the problem?
If you keep getting pop ups from malwarebytes or other antivirus programs for “Malicious Website Blocked” for C:\Windows\SysWOW64\dllhost, then your computer must be at risk of being infected by a Trojan virus. This virus is associated with Dllhost.exe *32 COM surrogate that usually gets into system through malicious websites, spam email attachments and unsafe downloads without user’s permission. But once it is installed, it can show a visible infected symptom. Your CPU usage can reach to 100% with 30 instances of this process running in the background and no matter how many times you have tried to end the process, it keeps reappearing and eats up your system resources. Generally speaking, if you see multiple dllhost.exe process on Task manager, it doesn’t really mean that your computer is infected because in many cases, this is a safe Microsoft Windows system process, called “COM Surrogate”. However, cyber criminals take the advantage of this process name and they design another malware using the same name in order to escape detection from most antivirus programs and further attack innocent users. It is easy to find out whether the dllhost.exe is safe or malicious because the real one is usually located in the folder C:\Windows\System32 but the fake one could be placed to everywhere inside the computer, most frequently it will be in C:\Windows\SysWOW64\dllhost.exe.
Trojan associated with C:\Windows\SysWOW64\dllhost.exe can make a big effect on your PC performance therefore you may see Windows system CPU usage continues to peek or stays at 100% and it is difficult for you to perform a single task on your PC. Everything is stuck and not loading anymore. It also contains other Trojan capabilities that can download threats or malware from the remote servers in the background and also open a backdoor to let remote hackers access the target PC. As a consequence, all your private information like log-in password, credit card details and other financial details could be compromised. The Trojan also has the ability to add malicious add-on or extension to your browser without your permission, causing unwanted browser redirection or Internet crash issues to bother users. It always spreads itself with the use of a fake scanner webpage so you will keep getting pop up from your antivirus saying that “Malicious Website Blocked”. To completely fix the issue, manual removal is needed.
Slow down your PC speed notably.
Add other dangerous Trojan or Spyware to your system secretly.
Allow the hacker to access your entire system.
Collect all your personal information and transfer to a remote hacker.
Destroy critical system files and make PC unstable.
From malicious drive-by-download scripts from corrupted porn and shareware / freeware websites.
Through spam email attachments, media downloads and social networks.
When clicking suspicious pop-ups or malicious links.
Open unknown email or download media files that contain the activation code of the virus.
Note: No matter how the virus accesses your PC, users should know that there are no tools can remove this pesky Trojan automatically at this moment, it is suggested users not spend much time in downloading or paying any security software which claims can delete this stubborn virus. It is totally useless. To completely fix C:\Windows\SysWOW64\dllhost.exe problem, professional manual guide is needed.
Currently many computer users had the same experience that this virus couldn’t be removed by any anti-virus applications. So the manual approach is always required to combat this virus. And here is the step-by-step removal guide for all computer users.
1. End the malicious process from Task Manager.
Once C:\Windows\SysWOW64\dllhost.exe problem is found, computer user may notice that CPU usage randomly jumps to 100 percent. At any time Windows always has many running processes. A process is an individual task that the computer runs. In general, the more processes, the more work the computer has to do and the slower it will run. If your system’s CPU spike is constant and remain at a constant 90-95%, users should check from Task Manager and see if there is a suspicious process occupying system resources and then end it immediately.
(The name of the virus process can be random.)
Press Ctrl+Shift+Esc to quickly bring up Task Manager Window：
2. Show hidden files and folders.
Open Folder Options by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, and then clicking Folder Options.
Click the View tab.
Under Advanced settings, click Show hidden files and folders, uncheck Hide protected operating system files (Recommended) and then click OK.
3. Open Registry entries. Find out the malicious files and entries and then delete all.
Attention: Always be sure to back up your PC before making any changes.
a. Press Windows key + R to open Run box. In the “Open” field, type “regedit” and click the “OK” button.
Then a Registry Editor window will pop up as the following picture shows:
b. Search malicious files and registry entries and then remove all of them:
%AllUsersProfile%\[random]
%AppData%\Roaming\Microsoft\Windows\Templates\[random]
%AllUsersProfile%\Application Data\.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\[random]
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Temp
C:\Windows\SysWOW64\dllhost.exe pop-up indicates that your computer has a virus. This virus seriously endangers the privacy of computer users because it can steal your personal and financial information or give a malicious hacker access and control of your PC. PC users will have to suffer a tough time opening programs or surfing online properly. It keeps showing high CPU usage and makes computer frequent stuck. In some cases, it is capable of infecting other originally good documents, deleting some necessary files of your system or some other programs by penetrating into the registry files. This will lead you into a frustrating situation so you need to fix the issue as soon as you detect it.
Note: If you are not knowledgeable enough to be able to distinguish the location of this virus, or you are afraid of making mistake during the manual removal, please contact experts from Yoocare Online Tech Support for further help.
Published by & last updated on November 12, 2014 3:31 am
