Malware.heuristic.1003 belongs to the malicious software category of Trojan horse viruses. This makes Malware.heuristic.1003 particularly dangerous and it must be removed from the infected system immediately.


Multiple VirusTotal scanners detect the Malware.heuristic.1003 virus

Malware.heuristic.1003 is a relatively new Trojan horse variant, so there isn’t sufficient research done on it to exactly specify the kind of malicious tasks it is programmed to execute on its victims’ machines. The thing about this particular type of malware is that it is incredibly versatile. In other words, Trojans are capable of performing a very large range of different actions on the infected computer, and this is in part what has made them an invaluable tool for hackers and cybercriminals across the globe, and for decades now at that.

We will cover the different possible usages of Malware.heuristic.1003 further on in this article. And the second valuable quality of the Trojan horse virus class is its stealth. This is the other factor that has contributed to making Trojans the most well-known and widespread type of malware out there. It’s not uncommon for variants of this kind to be able to hide deep in the systems of their victims for months and even years on end. Furthermore, Trojans like Malware.heuristic.1003 can even disguise themselves as system files to prevent users from recognizing them as malware. And this makes their removal especially tricky, too.

That is why when dealing with Malware.heuristic.1003, we would recommend using a professional malware removal tool like the one we have available on this page. But if you feel confident enough in your technical skills and knowledge, then you may of course make use of our manual removal guide below. Just be sure to follow the steps exactly as they are described in the guide to avoid accidentally deleting some crucial system file along the way.

As mentioned, Trojan horses like the Malware.heuristic.1003 malware the are very flexible. The Malware.heuristic.1003 malware can be tasked with the destruction of your system if need be, or with the complete wipeout of its disks and drives, etc.

In the majority of Trojan horse infections, the virus is tasked with something a little more elaborate. For instance, it may be programmed to steal information from your computer using a variety of different techniques. Malware.heuristic.1003 may log your keystrokes, it may grant the hackers remote viewing of your screen, or it may even allow them to hack into your webcam and/or microphone. That way the criminals behind the virus can gain access to sensitive data and misuse it in all sorts of awful ways.

Another fairly common usage of Trojan horse variants is the exploitation of the host system’s resources for cryptocurrency mining. In other instances, the computer’s resources may also be used to distribute spam or infect other machines within the same network. Also, Trojans like Malware.heuristic.1003 are often used as backdoors for other types of malware, most commonly ransomware. So, after you have removed Malware.heuristic.1003 from your PC, it may be a good idea to run a full system scan for any other potential threats.


Name Malware.heuristic.1003
Type Trojan
Detection Tool

Malware.heuristic.1003 Malware Removal

If you are looking for a way to remove Malware.heuristic.1003 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 Malware.heuristic.1003 and any other unfamiliar programs.
  4. Uninstall Malware.heuristic.1003 as well as other suspicious programs.

Note that this might not get rid of Malware.heuristic.1003 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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