How to remove MSIL/TrojanDownloader.Agent (Virus removal guide)

What is MSIL/TrojanDownloader.Agent?

Is your anti-virus constantly sending alerts of blocked infection of a malware named MSIL/TrojanDownloader.Agent? It means that your browser or whole computer is infected with a nasty malware. It can change computer settings and files; create new folders; download and install other malicious software onto the infected computer; redirect web-browsers to malicious, scam and spam web-pages; use the computer for click fraud and other dangerous and harmful actions.

If you still are not sure that your personal computer is affected with malware, then check your computer for the common symptoms of this infection:

your browser displays advertisements where previously you have never seen;
web browser settings such as homepage, new tab page and search engine are hijacked;
webpage links redirect to web pages different from what you expected;
new entries appear in your Programs folder;
your antivirus software detects an infection;
Internet connection is slow.

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What is MSIL/TrojanDownloader.Agent trojan?
Threat Summary
Removal

Any malware is a serious threat. Trojans usually infect a computer with other types of malware. Trojans can download and run other very dangerous malware such as ransomware and cryptominers. Especially dangerous are ransomware that secretly encrypt the victim’s files and then demand a ransom to decrypt them. The recovery of encrypted files becomes impossible in most cases. Ransomware can lead to the loss of personal documents and important data.

Cryptominers are malware that uses computer resources to secretly mine cryptocurrency. This process uses up a lot of system resources, which means that it slows down the speed of the computer. Moreover, cryptominers can lead to overheating of the main components of the computer and their failure.

Trojans are also used to infect computers with browser hijackers and adware. This malicious software is less dangerous than ransomware or cryptominers, but it causes intrusive ads and unwanted browser redirects. In some cases, Trojans have capabilities that allow criminals to remotely control the infected computer.

To summarize, the presence of MSIL/TrojanDownloader.Agent trojan on a computer can lead to serious problems, loss of personal data, large financial losses, damage to computer parts, and much more.

Threat Summary

Name	MSIL/TrojanDownloader.Agent trojan
Type	Trojan, malware, Phishing virus, Spyware, Redirect virus
Detection Names	TrojanDownloader:MSIL/Generic, Win32:Trojan-gen, Win32.Trojan.Agent, Trojan-Downloader, HEUR:Trojan-Downloader.MSIL.Tiny.gen, Artemis!Trojan, Msil.Trojan-downloader.Agent.Peqd, Trojan.MSIL.Tiny.gen, Trojan-Downloader.MSIL.Agent, MSIL/Agent.CCE!tr.dldr, A Variant Of MSIL/TrojanDownloader.Agent.CCE, W32/Trojan.CYO.gen!Eldorado
Distribution methods	Spam mails that contain malicious links. Malicious downloads that happen without a user’s knowledge when they visit a compromised webpage. Social media, such as web-based instant messaging applications.
Removal	MSIL/TrojanDownloader.Agent trojan removal guide

On the Internet, users can come across many Trojans that perform various malicious actions. Among them there are such as Numando malware, AnarchyGrabber Stealer and DPD Delivery Email virus, although, of course, there are many more. Some of them collect user data, others install malware on computers, and still others add infected computers to botnets, and so on. In any case, each Trojan is a huge threat to both user privacy and computer security. Therefore, Trojans must be removed immediately after detection; using an infected computer is very dangerous.

How to remove MSIL/TrojanDownloader.Agent trojan (Malware removal guide)

If you accidentally run a file attached to a spam email, or suspect that your computer is infected with the MSIL/TrojanDownloader.Agent trojan, then you need to follow the steps, which are given below. You may find some minor differences in your MS Windows install. No matter, you should be okay if you follow the steps outlined below: kill malicious processes, remove MSIL/TrojanDownloader.Agent associated files, scan computer for malware. Some of the steps will require you to reboot your personal computer or close this web-site. So, read this guidance carefully, then bookmark this page or open it on your smartphone for later reference.

To remove MSIL/TrojanDownloader.Agent trojan, complete the steps below:

Kill MSIL/TrojanDownloader.Agent trojan
Disable MSIL/TrojanDownloader.Agent trojan start-up
Scan computer for malware

Kill MSIL/TrojanDownloader.Agent trojan

Press CTRL, ALT, DEL keys together.

Click Task Manager. Select the “Processes” tab, look for something suspicious that is the MSIL/TrojanDownloader.Agent trojan then right-click it and select “End Task” or “End Process” option. If your Task Manager does not open or the Windows reports “Task manager has been disabled by your administrator”, then follow the guide: How to Fix Task manager has been disabled by your administrator.

In most cases, malicious software masks itself to avoid detection by imitating legitimate Microsoft Windows processes. A process is particularly suspicious: it’s taking up a lot of memory (despite the fact that you closed all of your applications), its name is not familiar to you (if you’re in doubt, you can always check the program by doing a search for its name in Google, Yahoo or Bing).

Disable MSIL/TrojanDownloader.Agent trojan start-up

Select the “Start-Up” tab, look for something suspicious that is a malicious program, right click to it and select Disable.

Close Task Manager.

Scan computer for malware

We suggest using the Zemana Anti-Malware that can detect and remove the MSIL/TrojanDownloader.Agent trojan. The utility is an advanced malicious software removal program developed by (c) Zemana lab. It’s able to help you remove PUPs, viruses, adware, malware, toolbars, ransomware and other security threats from your computer for free.

Installing Zemana is simple. First you will need to download Zemana Anti Malware from the following link. Save it on your Windows desktop or in any other place.

Zemana AntiMalware
159544 downloads
Author: Zemana Ltd
Category: Security tools
Update: July 16, 2019

Once downloading is finished, start it and follow the prompts. Once installed, Zemana will try to update itself and when this task is done, click the “Scan” button to begin scanning your PC for the MSIL/TrojanDownloader.Agent trojan, other malicious software and spyware.

A system scan can take anywhere from 5 to 30 minutes, depending on your PC. Review the report and then press “Next” button.

In order to be 100% sure that the computer no longer has the MSIL/TrojanDownloader.Agent trojan, we recommend using MalwareBytes. It can easily detect and remove adware software, trojans, browser hijackers, PUPs and malicious toolbars with all their components such as files, folders and registry entries.

MalwareBytes can be downloaded from the following link. Save it to your Desktop.

Malwarebytes Anti-malware
317660 downloads
Author: Malwarebytes
Category: Security tools
Update: April 15, 2020

After the downloading process is complete, run it and follow the prompts. Once installed, MalwareBytes will try to update itself and when this procedure is finished, click the “Scan” button to perform a system scan with this utility for the MSIL/TrojanDownloader.Agent trojan, spyware, worms and other malware. Make sure to check mark the threats which are unsafe and then press “Quarantine” button.

MalwareBytes is a free malware removal tool that you can use to remove all detected folders, files, services, registry entries and so on. To learn more about this malware removal utility, we advise you to read and follow the step-by-step guide or the video guide below.

How to stay safe online

Using an adblocker such as AdGuard will protect you from harmful websites, misleading ads and phishing content. Moreover, you can find that AdGuard have an option to protect your privacy and stop spam web pages. Additionally, ad blocking software will help you to avoid unwanted pop-ups and unverified links that also a good way to stay safe online.

Visit the following page to download AdGuard. Save it on your Desktop.

When downloading is finished, double-click the downloaded file to start it. The “Setup Wizard” window will show up on the computer screen as shown on the screen below.

Follow the prompts. AdGuard will then be installed and an icon will be placed on your desktop. A window will show up asking you to confirm that you want to see a quick guidance as shown on the screen below.

Click “Skip” button to close the window and use the default settings, or click “Get Started” to see an quick guide that will allow you get to know AdGuard better.

Each time, when you run your PC, AdGuard will start automatically and stop unwanted advertisements, block phishing websites, as well as other harmful or misleading web-pages. For an overview of all the features of the program, or to change its settings you can simply double-click on the AdGuard icon, that is located on your desktop.

Finish words

Now your computer should be clean of the MSIL/TrojanDownloader.Agent trojan. We suggest that you keep AdGuard (to help you block unwanted pop-up advertisements and unwanted malicious webpages) and Zemana (to periodically scan your device for malware, browser hijackers and adware). Make sure that you have all the Critical Updates recommended for Microsoft Windows OS. Without regular updates you WILL NOT be protected when new trojans, ransomware and malware are released.

If you are still having problems while trying to remove MSIL/TrojanDownloader.Agent from your computer, then ask for help here.