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Dolohen Virus

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Apps like “Virus” can be encountered on Chrome, Firefox, Opera or any other browser. Aside from changing the starting page and the search engine of the browser  that you normally use without being given an Admin’s permission to do so, such apps ,like,are also know for spamming the users with invasive, aggressive and highly obstructive online commercial messages. 


The Dolohen Virus will redirect your browser and display pop up ads and messages.

We understand just how annoying the ads you see online could be but did you know that aside from being highly unpleasant, those advertising messages could also be potential hazards to your system’s safety? If what has brought you to this page is the recently increased number of web advertisements that you are getting in your browser, then you should definitely read the whole article and maybe use the instructions from the removal guide down below. The reason is, you probably have an app called “Virus” that has attached itself to your browser and is now swarming your screen with page-redirects, banners, pop-ups and annoying ads, some of which may compromise the security of your computer system.

Such activity is, of course, regarded as intrusive by regular users and cyber security researchers alike.Because of this, and other similar pieces of software are called browser hijackers and are seen as potentially unwanted. Contrary to what a lot of people think, the browser hijackers are different from viruses, Trojans, Spyware, Ransomware and other criminally-developed and maliciously used computer threats. However, because of the invasive nature of the browser changes and the potential hazards that the ads may bring, the browser hijackers are still not a type of software that we would advise you to keep on your computer. Quite the contrary – removing “Virus” or any other similar software piece is usually the best course of action you can take when encountered with such an app.

The Dolohen Virus

As we said, here, we aren’t focusing on some nasty file-encrypting Ransomware cryptovirus or on some sneaky and highly-problematic Trojan Horse infection that can corrupt your whole computer system. However, this is exactly what you may end up with on your computer if you are not careful with the random pop-up adverts, promotional banners, page-redirects, flashy links and other annoying forms of advertisement that may display on your screen.

The hijacker itself isn’t supposed to harm your system or expose it to danger. The problem comes from the unreliable and oftentimes unsafe sources of many of the adverts that may get shown on your screen. The hijacker creators usually impose little to no control over what ads get spammed on your screen and also usually do not take responsibility for the quality of the said ads. What this means is that you are on your own in this case and if you do not make sure to stay away from any potentially sketchy online commercials, no one would it for you. We, however, can help you remove the source of the intrusive advertisements through the guide we’ve included in this article so be sure to use it if you have in your browser.


Type  Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  The typical symptoms of a hijacker are changes in the browser settings and increased number of web ads that even your ad-blocker is unable to stop.
Distribution Method Different forms of click-bait, automatic updates, software bundles, spam and more.
Detection Tool

 How To Remove Dolohen Virus 

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


Hold together the Start Key and R. Type appwiz.cpl –> OK.


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:


Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.


Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

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