Remove Trojan-Dropper.MsOffice.Agent.Aj

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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This page aims to help you remove Trojan-Dropper.MsOffice.Agent.Aj. Our removal instructions work for every version of Windows.

Trojan-Dropper.MsOffice.Agent.Aj is a newly reported malicious program which, as per the recent analysis, behaves like a Trojan horse. This new threat could pose a serious risk to any system that it manages to infect. What is especially worrying about Trojan-Dropper.MsOffice.Agent.Aj is the fact that there is no way to know what this malware might be up to. As a typical Trojan horse, it could be programmed to perform a wide range of criminal tasks and secret malicious activities related to fraud, theft, blackmailing and what not. The hackers who are in control of the infection can use it as per their specific criminal intentions and could leave your computer seriously damaged after that. That’s why, if you have the slightest suspicion that Trojan-Dropper.MsOffice.Agent.Aj might be hiding somewhere inside your system or you notice some unusual activity, sudden crashes, software errors or higher than usual CPU or RAM usage, we strongly advise you to run a full scan of your machine with a reliable antivirus program. In case you don’t have such a program on your PC, you can use the professional antimalware tool on this page for additional assistance. Should the scan show something bothering, please read the information below and use one of the suggested methods to remove the threat from your computer.

What characterizes a Trojan horse infection?

The Trojan horses are a special type of computer threats which, as we said above, can be very versatile. Their multifunctional nature allows their creators to achieve various types of criminal deeds with ease. A very dreadful ability that these malicious pieces of software have is to sneak into any computer in complete stealth. Usually, the victims have no clue when and how the infection has occurred which allows the virus to complete its harmful tasks without being detected or interrupted. 

Remove Trojan-Dropper.MsOffice.Agent.Aj



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:

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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.


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

Oftentimes, when you realize that the Trojan is messing with your system, it could be too late to stop it because it has already done some especially nasty form of damage, fraud or theft. Sadly, there are oftentimes no visible symptoms which you can rely on to reveal the infection. That’s why, the best protection you can rely on is your antivirus software and its ability to detect the latest virus definitions.

How can a threat like Trojan-Dropper.MsOffice.Agent.Aj be safely removed from your system?

A serious threat such as Trojan-Dropper.MsOffice.Agent.Aj cannot be easily removed from your machine without some special assistance. The Trojan typically tries to remain hidden and mask its files as normal system files. That’s why, you should be very careful when you detect them and especially when you delete them. We usually do not recommend inexperienced users to perform manual removal and we typically recommend the use of a professional removal tool in order to avoid possible system damage. If you are experienced, though, you can use the instructions in the Removal Guide below and try to deal with Trojan-Dropper.MsOffice.Agent.Aj on your own.

What issues may arise if Trojan-Dropper.MsOffice.Agent.Aj attacks you and where this malware usually lurks?

Trojan Horses, especially advanced new versions such as Trojan-Dropper.MsOffice.Agent.Aj, might be capable of many nasty things. For instance, they can steal personal identification information, confidential company data, business secrets, passwords, online profiles, login credentials, bank account details, credit or debit card numbers and practically any information that is kept on the infected computer. They can transmit all this sensitive data to the servers of their criminal creators and in this way enable them to exploit the collected information for various malevolent activities. The crooks may drain your bank accounts, control your online profiles, use your identity and link it to various cyber crimes, blackmail you and even spy on you through your webcam. A very common use of most of the Trojans is to spread different viruses and to insert them inside the infected computer in complete stealth. Ransomware, Spyware, Worms and other Trojans could easily end up on your machine thanks to backdoor activities conducted by Trojan-Dropper.MsOffice.Agent.Aj. And believe us – you don’t want any Ransomware or similar nasty malware on your computer. That’s why, it is best to remove Trojan-Dropper.MsOffice.Agent.Aj or any other similar Trojan-based infection as soon as possible.

Keep away from these most common Trojan sources:

Having trusted security software is a good way of keeping Trojan threats away from your system. However, it is not enough to solely rely on your antivirus to protect you. That’s why, to stay safe, we advise you not to click on every popping-up link, ad or offer that appears on your screen and be careful what content you interact with. Many malware contaminations happen thanks to spam and infected email distribution and for this reason, you should carefully monitor your email inbox and stay away from shady attachments or too-good-to-be-true offers. Also, stick to reputed software developers and do not download or install programs from shady links, free download platforms or sudden software update pop-ups.


Name Trojan-Dropper.MsOffice.Agent.Aj
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  This malware can rarely be detected without the help of a professional security software. 
Distribution Method  Usually spreads via legitimate-looking ads, files, email attachments, infected links, pirated content, phishing sites. 
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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