Backdoor.trochilus is a sophisticated new malware threat of the Trojan horse type. Backdoor.trochilus uses disguise to trick its victims and then begins to covertly execute various malicious processes in the attacked system.


The Backdoor.trochilus malware

Malware comes in numerous varieties and shapes. However, there are not many online threats that can match the crafty and cunning nature of an infection from the Trojan horse type. The Backdoor.trochilus Trojan is one such threat and if you are reading this, you have most likely become a victim of its harmful activities. It is highly recommended to remove this Trojan and rid your system of it, because if you don’t do that in time, a lot of malicious effects may take place on your computer. What we have in mind here is the ability of the Trojan to cause severe data and software corruption, to insert different viruses like Spyware or Keyloggers and even Ransomware threats and to provide the hackers with total remote access to your entire computer. Fortunately, there is a way to safely eliminate Backdoor.trochilus Trojan and our team has already prepared a removal guide on that. We have selected some proven steps, which will assist you to manually identify the harmful Trojan files and delete them even if your antivirus is not able to fully clean up the infection. However, we would encourage you to follow them only after you carefully familiarize yourself with the specifics of this malicious software group because dealing with infections like Backdoor.trochilus Trojan may require all of your attention and understanding.

Trojan infections – real nightmare for the users’ computers!

Trojan horse infections can be extremely troublesome. We really aren’t exaggerating because if a malicious script like Backdoor.trochilus is inside your computer, all of your data, as well as your system and your safety could be exposed to great risks. What malicious things can a Trojan horse do? Well, the options the hackers can choose from are not just one or two. They can program the script to act as a backdoor for other infections like Ransomware, spyware and different viruses. They can also use Backdoor.trochilus Trojan to gain complete remote access to your computer and turn it into a bot. Very often, with the help of the Trojan, the hackers are able to secretly collect passwords, login credentials, banking details, credit or debit card numbers and perform various crimes such as online fraud, blackmail, and theft.

Usually, most of the victims are not aware of the contamination and it takes them time to figure out that the malware is secretly operating on their machine. This is because Trojans often lack some visible symptoms and try to remain hidden for as much time as possible, while they perform the malicious deeds they have been programmed for. Unfortunately, by the time they are revealed, major damage is caused to the infected machine and the victims often have to face the malicious consequences that appear almost out of the blue.

Threats like Backdoor.trochilus tend to appear fully legitimate or generally harmless-looking files, links, emails messages, images, applications, audio or video files. This way, they can purposely trick the users into clicking on them without having a clue about the danger. One tap on the well-camouflaged payload is usually enough to activate the exploit kit, where the malware is inserted. This ability of the Trojans is what the hackers love the most. They frequently use various tricky transmitters such as malicious links, attachments, too-good-to-be-true offers, “you won a prize” messages, aggressive popping boxes or some free applications and installers to infect the users and break through their system. 

That’s why users have a major role in the prevention of Trojan infections. We always advise our readers not to trust every pop-up, link, email or an ad that comes on their screen, even if it seems legitimate. Avoiding unsafe web locations, shady installers and sketchy web content can greatly help them to stay away from unpleasant and harmful infections. Having proper antivirus software is highly recommended as one of the best things users could do to ensure reliable protection for their system. If regularly updated, a good antivirus can detect potentially harmful scripts and can indicate the users about them before a major damage is done. However, some advanced Trojans like Backdoor.trochilus Trojan may be though to detect and remove even with the antivirus and may require additional assistance and some specialized software. The removal guide below can provide some manual instructions as well as a specialized removal tool, with the help of which no Trojan can remain hidden on your system.


Name Backdoor.trochilus
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Crashes and system errors as well as changed Internet and browser settings are oftentimes the main signs that there’s a Trojan horse infection in the computer.
Distribution Method Usually, hackers who create Trojan viruses disguise their malware as something users would be tempted to download and then upload it to pirate file-sharing/torrent sites or send it via spam emails.
Detection Tool

anti-malware offerOFFER *Read more details in the first ad on this page, EULA, Privacy Policy, and full terms for Free Remover.

Remove Backdoor.trochilus

If you are looking for a way to remove Backdoor.trochilus you can try this:

  1. Click on the Start button in the bottom left corner of your Windows OS.
  2. Go to Control Panel -> Programs and Features -> Uninstall a Program.
  3. Search for Backdoor.trochilus and any other unfamiliar programs.
  4. Uninstall Backdoor.trochilus as well as other suspicious programs.

Note that this might not get rid of Backdoor.trochilus completely. For more detailed removal instructions follow the guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus 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).



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:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
Drag and Drop File Here To Scan
Drag and Drop File Here To Scan
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Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    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

    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!


    About the author


    Violet George

    Violet is an active writer with a passion for all things cyber security. She enjoys helping victims of computer virus infections remove them and successfully deal with the aftermath of the attacks. But most importantly, Violet makes it her priority to spend time educating people on privacy issues and maintaining the safety of their computers. It is her firm belief that by spreading this information, she can empower web users to effectively protect their personal data and their devices from hackers and cybercriminals.

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