OpcJacker Malware


OpcJacker is a dangerous piece of software developed with the purpose to secretly infiltrate a big number of computers and perform illegal and harmful tasks in them. OpcJacker can be described as a Trojan Horse virus and it could be used in a lot of different ways.


A new Trojan-based threat named OpcJacker has recently been attacking many internet users, and has been causing numerous problems in their computers. If you are reading this because you’ve also been infected by OpcJacker , you should know you’re dealing with a very malicious type of software, designed to silently enter your machine and accomplish its nefarious tasks in silence. What’s really bad about the Trojan threats is that you never can be sure what precisely their damaging abilities can be used for. A Trojan horse can be programmed to execute literally all kinds of insidious tasks once it infiltrates a given machine. That’s why it’s extremely important to remove this malware as soon as you detect it on your system. Fortunately, in the next lines, we will show you how to do that, and if you follow the directions carefully, you’d be able to remove OpcJacker without the assistance of a computer specialist. You will find all the necessary instructions in the removal guide below. All you have to do is find all the malware-related data in your system, and delete it. However, we recommend you read a bit more about the Trojan’s damaging capacities, and the techniques you can use to protect your system from them, before you scroll to the removal steps.

The OpcJacker Malware

If your system has been invaded by the OpcJacker malware, one of the most recent Trojan threats, you’re in serious trouble. The OpcJacker malware and the Trojan Horse infections as a whole, are no joke.

They spread throughout the internet in advertisements, pop-ups, malicious links, spam emails, infected attachments, torrents, drive-by downloads, different installation kits, or compromised websites, and mask themselves as seemingly harmless pieces of web content, with which users commonly interact. What’s worse, at the time of the actual infection, and even after that, there are usually hardly any noticeable symptoms that could suggest the Trojan’s presence on the infected device. This ensures the malware can perform the harmful activities it has been coded for quietly. Those activities could involve the theft of personal information, espionage, system destruction, data corruption, virus and Ransomware distribution, and more. However, if you were able to detect OpcJacker or Presenoker , you have a chance to remove the infection before it manages to reveal its full malicious potential.

How can you remove OpcJacker

Removing a Trojan Horse can be a difficult and challenging task. However, if you can carefully follow the directions in the guide we’ve published below, you should have no trouble finding and deleting OpcJacker from your system. If you’re not really comfortable with handling the danger manually, scanning your system with the professional OpcJacker removal tool found on this page is a good idea. This tool will assist you with the detection and removal of the Trojan, as well as keep your system out of harm in the future.
When regularly updated, in most cases, such software can notify you about threats on time. Another thing you could do for your safety is to avoid insecure web platforms, spam messages, sketchy advertisements, and unreliable sites, and stick to secure, and renowned web pages. Also, try to keep your system clean from obsolete programs, because they may create security holes, which could be exploited by malware, and Trojans. This may not ensure full protection, but it may still minimize the possibility of meeting computer threats.


Danger Level High (Trojans are often used as a backdoor for Ransomware)
SymptomsIn most cases, the Trojan hides its traces and does not show visible symptoms.
Distribution MethodMalicious ads, infected software installers, spam emails with harmful attachments, illegal websites, torrents. 
Detection Tool

Remove OpcJacker Malware

If you are looking for a way to remove OpcJacker 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 OpcJacker and any other unfamiliar programs.
  4. Uninstall OpcJacker as well as other suspicious programs.

Note that this might not get rid of OpcJacker 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:

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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


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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