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The Trojan horse malware category is huge and its representatives like Caypnamer tend to be highly versatile. That is why it may be difficult to tell you all you need to know about Caypnamer and cyber threats similar to it in one short article.

The Caypnamer virus may be used to target and destroy essential data on your PC

Still, we will do our best to provide you with the most essential information about this nasty and highly problematic Trojan horse virus that a lot of users have been struggling with in the recent days.

Caypnamer is a Trojan horse program and this means one can expect a lot of different harmful activities from it. The thing about Trojans is that they are oftentimes not limited to only one use unlike other threats such as spyware, rootkits, ransomware and so on. While a spyware infection will mainly be tasked with spying on your or while a ransomware cryptovirus would primarily be programmed to encrypt your data and later blackmail you for a money payment if you want the files to be released, the uses of Trojans can be multiple.

This means that an infection like Caypnamer or Energy.exe may be used to target and destroy essential data on your PC and steal sensitive info from your HDD. But it might also be tasked with backdooring other infections in the targeted system or with imposing control over crucial system processes and allowing the hackers behind the malware to use the infected machine to facilitate their nefarious agenda. Those examples, however, were merely to give you an idea about just how varied the uses of a given Trojan horse virus can be and are by no means an exhaustive list of all the potential possibilities. The one sure thing here is that the virus needs to be removed ASAP if you think (or know) that it is inside your system. The next steps and instructions have been added to this article precisely with the purpose of helping you eliminate Caypnamer, so do not hesitate to give them a go.

In case you think you may not be able to cover all steps from the guide or if the malware still seems to be on your computer even after you have completed our removal guide, we advise you to try out the removal tool that we have included on this page – it is a specialized removal program that has been specifically designed to quickly and effectively take care of threats like Caypnamer.

Protecting your computer is a must!

You may not know how Caypnamer got inside your computer and this is because most such infections tend to get presented to the victims under some kind of disguise. Spam messages and pirated programs that can be downloaded from obscure sites as well as random pop-up requests and fake update prompts are some of the more usual carriers of this kind of malware.

However, it’s difficult to fully cover the whole variety of potential Trojan horse sources which, combined with the fact that these infections rarely give any symptoms, is why we advise you to ensure your machine is protected by a reliable and strong antivirus or anti-malware tool that can notify you about any potential hazards that you might have failed to spot.


Danger Level High (Trojans are often used as a backdoor for Ransomware)
Symptoms Some possible symptoms are high use of CPU and RAM and also sudden crashes and errors but a Trojan might also show no symptoms whatsoever depending on the specific version of the malware.
Distribution Method Mass spam e-mail campaigns, random misleading web suggestions coming from unreliable sites, pirated programs and games, etc.
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 Caypnamer Virus

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

Note that this might not get rid of Caypnamer 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.
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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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