Ads Removal

Lsmos.exe “Virus”Removal

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.

This page aims to help you remove Lsmos.exe “Virus”. These Lsmos.exe removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

Adware programs can often be a real pain to deal with. With that being said, finding out that one has made its way into your system can also be very startling. That has most likely been the case with Lsmos.exe for you and other of our readers, who have had to face this latest adware program on their computer. Adware tends to show itself through its numerous popups, banners, box messages and various other online ads that start all of a sudden flooding the Chrome, Firefox, Edge, Opera or any of the other popular browsers. In fact, this activity is oftentimes perceived as a virus infection and leads users to panic. Luckily, this is not the case and in this article we will aim to explain just what Lsmos.exe is and what adware really stands for. In addition to all that, the matter you are probably most concerned about has to do with the removal of this program. Well, we have that covered, as well, and the attached removal guide on this page will help you do exactly that. But first, do take a minute to read through the following lines to gain better perspective of the issue you’re facing.

What is adware and is there anything to fear about Lsmos.exe?

Adware is a term comprised of the two words “advertising software”. As such, it should be quite obvious that its aim is to generate online ads, which it does. Adware developers typically work closely with various distributors and providers of different products and services and the ads that you are now seeing on your screen are the fruits of that collaboration. For the distributors and service providers, this is of course beneficial, because their products and/ or services receive better exposure and they can, therefore, gain more customers. As for the developers of programs like Lsmos.exe, they usually benefit from the paid clicks on the various online ads. Very often this is made possible thanks to a remuneration system called the Pay Per Click or PPC scheme and others like it. They ensure the payment for each and every click that you and others make on the many popups and banners that keep on plastering your screen.

Lsmos.exe “Virus” Removal

If you are a Windows user, continue with the guide below.

If you are a Mac user, please use our How to remove Ads on Mac guide.

If you are an Android user, please use our Android Malware 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.


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 Lsmos.exe 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 Lsmos.exe from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Lsmos.exe 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.


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.

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!

The only problem with that is that in their strive to exploit these remuneration schemes to the fullest, they usually tend to resort to some rather controversial tactics that are frowned upon in the online community. For one, software pieces like Lsmos.exe can and often are programmed to monitor the affected users’ browsing patterns. Moreover, they also tend to record certain data that they can extract by reviewing your browsing history, such as the kind of websites you tend to spend the most time on, or the pages you’ve bookmarked and favorited. Not only that, but they can also take note of the kind of content you tend to like and share on different social media platforms etc. In addition to all that, you online search requests can also be of interest. All of this data will essentially provide the adware with a better picture of what type of products and services will be more likely to attract your attention. Then, in consideration with the collected data, the adware will then adjust the flow of ads to answer to the user’s estimated preferences.

This is a quite obvious privacy violation and is often also why users choose to get rid of the program exposing them to the numerous ads. But it would have all been halfway fine, if the ads were the only thing that programs like Lsmos.exe could potentially expose you to. In fact, it is because of those very same ads that users, who have had adware and similar programs installed on their PCs, may end up being attacked by far more serious threats than some PUP and we’re talking malware of the highest ranks, such as Trojans and ransomware. It is actually a very real risk of bumping into a virus like that amidst all the popups and box messages, because hackers use those for the distribution of their malicious software products. For this reason we would recommend abstaining from any interaction with the said ads, as you can never be sure of whether or not you’re looking at a fake or real ad.


Name Lsmos.exe
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Popups, banners, box messages, in-text links and various other ads in your browser.
Distribution Method Mainly via program bundles, distributed on different shareware and similar platforms. 
Detection Tool

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version. More information about SpyHunter and steps to uninstall.

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