Msonline.psd1 Trojan Removal (March 2018 Update)

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. 

Download SpyHunter Anti-Malware

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

How irritating is this problem? (2 votes, average: 5.00)

This page aims to help you remove the Msonline.psd1 Trojan. Our removal instructions work for every version of Windows.

Our current article will provide you with some in-depth information regarding a PC virus called Msonline.psd1 Trojan. This virus is one very nasty malicious program that is known for its versatility and ability to cause different types of harm. This virus belongs to the infamous Trojan horse malware category. Everything that you need to know about this malware is reviewed here. We hope that our tips and removal instructions below will be just what you need in order to get rid of such a serious threat.

Trojan-based viruses at first glance:

These malicious infections are indeed the largest malicious group in the online world. Trojans could be blamed for the greatest number of PC infections globally. So, how are those malicious programs so common and effective?

Below is the answer – this kind of viruses may perform a wide variety of illegal and harmful activities and can also get reprogrammed if the hacker needs them to do something else. Their multifunction nature makes these threats the most common viruses you may catch in the cyber world. Not only are they very widely spread, but the Trojan horses are also awfully hard to spot. You could indeed have no idea an infection is really going on before something serious takes place, and this malicious software reveals its presence.

The multifunction nature of the known Trojans:

Trojans, as stated above, are able to perform a wide range of really dangerous activities once they infect the victim’s PC system. We have tried to give you an overall idea regarding the potential uses of such Trojans down below. Nonetheless, since their versions are plentiful and different, we cannot include all the things such infections might be able to do in our list. Still, the following should be enough to give you an idea of just how dangerous Trojans can be:

  • This malware may be set to steal data or to modify it in some way. Some Trojan horses are exploited for invading someone’s PC and getting hold of some important private data. Following that, the cyber criminals might use this data for blackmailing or for stealing from online banking accounts, invading social media accounts or even hijacking the whole virtual identity of the user.
  • Such viruses could also get exploited for professional espionage, meaning that in case you are on a high level in the hierarchy of the company you’re working for, your system may become a target for this viruses as it might hold valuable work-related info.

Remove Msonline.psd1 Trojan



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. 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. If you see a screen like this when you click Uninstall, choose NO:



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.

  • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

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.


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.

Once inside, press CTRL and F together and type the virus’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!

  • Msonline.psd1 Trojan and the programs like it might act as means of spreading other sorts of malware. The most common scenario is the distribution of Ransomware viruses. These terrible ransom-requesting malicious software infections may exploit Trojans as backdoors since most Trojan viruses could ensure the successful distribution of the Ransomware into any PC through any vulnerability. It is likely that this one is the most horrifying case since you may end up attacked by two distinct, equally terrifying viruses simultaneously.
  • Also, this malware may function as file destroyer. The criminals may target some of your data for whatever reason and set this malware to delete it which might lead to the loss of essential data.

Distribution techniques of Trojans:

Trojan horse viruses could come from plenty of diverse sources, still, the most widely used ones have been reviewed and discussed here:

  • Cyber ads are a very common Trojan malware source. Many viruses such as Msonline.psd1 Trojan could come in the form of drive-by downloads, or as a result of the redirection to shady web platforms that these fake advertisements may provide.
  • Electronic mails may in addition be a huge source. These suspicious emails – actually, their attachments, may be distributing Trojan versions and Ransomware. You have to be extremely cautious when handling the emails you get on a daily basis as some of them may be contagious. Also, images and text docs from the attachments may be contaminated.
  • All kinds of web platforms might also be a usual source of Trojan horses. Msonline.psd1 Trojan may come from a variety of illegal torrents or illegal movie or video-sharing web pages you could visit while browsing the web.

Some effective prevention and removal advice:

If it comes to the necessary prevention, you have to stick to some healthy habits like only visiting trustworthy websites, installing only licensed software and getting only programs that you actually need on your PC.

When it comes to the removal of a virus like Msonline.psd1 Trojan, you might use the Removal Guide we have attached below. It includes all the needed instructions and we hope that it will be exactly the thing you need in order to eliminate the malware threat.



Name Msonline.psd1
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Usually, the infected user does not notice the ongoing infection on time as there aren’t any symptoms.
Distribution Method Via contagious content like web pages, email attachments, contaminated advertisements.
Detection Tool

Leave a Comment