Remove Trojan.Msil.Berbomthum.aa

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This page aims to help you remove Trojan.Msil.Berbomthum.aa. Our removal instructions work for every version of Windows.

A dangerous Trojan horse named Trojan.Msil.Berbomthum.aa has recently been reported to our team. Similarly to other representatives of its category, this threat tries to avoid its detection as much as possible by using sneaky infection methods and hiding deep within the system. Once it sneaks inside the computer, Trojan.Msil.Berbomthum.aa has the ability to cause various issues and launch targeted attacks in complete stealth. At the time of preparing this article, the infection can only attack devices that run on Windows operating system. However, the viruses of this type are evolving rapidly so there is no guarantee that they will not be able to attack other operating systems in the near future. As with every Trojan horse, we strongly recommend avoiding such threats at all costs because they can be used for a long list of malicious activities. In case of the slightest suspicion of infection, it is crucial to detect and remove Trojan.Msil.Berbomthum.aa as soon as possible. For this purpose, we highly recommend that our readers use professional security software or detailed removal instructions for the malware’s removal. Our team has prepared such helping tools down below so in case of need, do not hesitate to use them.

How dangerous is Trojan.Msil.Berbomthum.aa?

Trojan.Msil.Berbomthum.aa is a Trojan-based virus used to infect the computer system in a secret way and to perform specific criminal activities. This virus can be programmed to insert other malware inside the computer (such as Ransomware, Spyware, other Trojans, etc.), to launch targeted attacks and perform other dangerous actions. Typically, the Trojan can perform any type of fraud and can be reprogrammed to serve the needs of its criminal creators. Trojan.Msil.Berbomthum.aa may continuously connect to different domains and load malicious ads from them. The virus may also try to make you interact with these ads, fake links, pop-ups and infected transmitters or redirect you to phishing sites and pages.

Remove Trojan.Msil.Berbomthum.aa



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).



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:

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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.


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

In order to hide its harmful presence, the Trojan may try to cover its traces by mimicking legitimate processes in order to stay under the radar. This allows the harmful software to remain uncovered and to avoid getting removed by any security program. However, if you use an anti-malware program that has been updated to the latest virus definitions (such as the professional Trojan.Msil.Berbomthum.aa removal tool on this page), you should not have problems with detecting Trojan.Msil.Berbomthum.aa and having it removed from the system.

Also, some of the symptoms that might raise your attention and indicate a possible infection with this Trojan may include different kinds of unusual system behavior. For instance, you may notice that your computer is running slower than usual, programs take longer when you try to run them, some parts of legitimate web pages are inaccessible, your machine experiences sudden crashes or unusually high CPU and RAM usage and more. If you are faced with any of those issues, it is a good idea to do a full system scan with a trusted anti-malware software and remove the Trojan.Msil.Berbomthum.aa virus immediately.

How can Trojan.Msil.Berbomthum.aa infect your system?

According to various computer security specialists, this threat is mainly getting spread with the help of massive spam email campaigns and malicious online ads. That’s why, for your safety, it is advisable to not open emails from unknown senders or attachments that look sketchy and especially messages that promise you unexpected rewards and profits. This Trojan horse can also be distributed via downloads from illegal web pages as well as through social media spam, misleading notifications, fake ads, infected links, fake software update requests and other similar legitimate transmitters. For this reason, you should stay cautious and always avoid suspicious web requests that offer you to upgrade your Skype, Flash Player, Java and other similar programs.

Remove Trojan.Msil.Berbomthum.aa and fix the mess it has created on your computer

This Trojan horse has been very active recently so if you want to remove it and protect your PC from possible future contamination, consider installing an up-to-date anti-virus software. For optimal safety, it is highly recommended that you regularly do full system scans with it. If you feel like you are up for the task you could try removing the malware manually. For that, you can use the detailed instructions in the Removal Guide below and detect and eliminate Trojan.Msil.Berbomthum.aa with its help.


Name Trojan.Msil.Berbomthum.aa
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Unusual crashes, system sluggishness, software errors and hight CPU or RAM usage. 
Distribution Method  Legitimate-looking ads, links, offers, infected websites, malicious emails with attachments, fake software update requests, spam. 
Detection Tool

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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