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Trojan/Generic.ASMalwS.25C is a very sneaky type of computer infection that can hide in unexpected web locations like emails, free downloads, ads, attachments, links, updates, software installers, and so on. One careless click on one of Trojan/Generic.ASMalwS.25C’s numerous transmitters can compromise your system immediately.

The Trojan/Generic.ASMalwS.25C virus detected by multiple antivirus programs on VirusTotal

And the worst part about such infections is that you may not know when and how this can happen. That’s why it is very important to keep this type of malware away from your PC by making sure you don’t visit any sites or pages or download any content that may carry the infection. If our advice comes too late to you and your computer has already been compromised by this nasty infection, however, you should know that Trojan/Generic.ASMalwS.25C is not a normal virus but a Trojan horse – a form of very sophisticated malware that can use disguise itself and can harm your computer in a number of ways.

Typically, infections of this type may initially appear as some attractive software that users may think will do something useful when in fact, its main purpose is to harm the system or steal some sensitive data that can then be used against you.

Trojans may also disguise themselves as harmless-looking files, email attachments, free download apps, audios, videos, torrents and more with the sole purpose of misleading the users about their real nature and intentions. Oftentimes, such threats can secretly download other malware (such as spyware, rootkits or ransomware) and launch it in the background of the system without your knowledge. They can also provide the cyber criminals with remote access to the infected machine and transfer various types of data to their servers.

How to detect a Trojan?

If your computer has been compromised by a Trojan like Trojan/Generic.ASMalwS.25C, AltruisticsEnergy.exe your system may be slowed down because its processor may be busy running the activities of the malware in the background. You may also start to experience strange software errors, unresponsiveness, sudden Blue Screen of Death crashes and general instability. However, you may also not experience any of these symptoms.

The reason why these pieces of malware are so problematic is because they don’t have any typical symptoms that would give them away. That’s why the best way to find out if your computer has been infected with a Trojan horse is by installing and using a professional anti-malware scanner and removal tool that can detect hidden malicious activities in the background of the OS.

If you decide to remove the Trojan manually, make sure you carefully follow the instructions in the guide that we have here and correctly detect and delete any components that are associated with it. Still, do not rely on the manual removal instructions unless you are confident in your ability to follow all of the steps listed in it because some parts of the Trojan horse can remain on the computer and then reactivate the infection again if you fail to find and remove all the data related to the malware.

How to protect your system against Trojan horse viruses

If you want to minimize the risk of clicking on a Trojan transmitter, we suggest you avoid opening unknown files attached to emails, especially those with extensions like .exe, .vbs, and .bat and messages that come from unknown senders. It is highly recommended that you always keep your firewall active and keep your antivirus program up-to-date so that it can provide you with protection against the latest infections.


Danger Level High (Trojans are often used as a backdoor for Ransomware)
Detection Tool

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Remove Trojan/Generic.ASMalwS.25C

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
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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:





    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 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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