Ontology.dll Trojan Error – What Is It and Should You Remove It
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Ontology.dll Trojan Error – What Is It and Should You Remove It

This article aims to explain what is the ontology.dll malware error and explain how to check if it’s malicious and how to remove it.

If you are running a computer with an Nvidia GPU, chances are that your antivirus software has detected the process Ontology.dll as a Trojan horse. The Ontology.dll is a file, belonging to the drivers of the Nvidia GPUs, installed on Windows machines and Is generally classified as a false positive detection. However, many users also report that the file may be related to a malicious executable file which may attack the driver of you GPU. This is why, we recommend that you read the following article and secure your computer n case Ontology.dll is a malicious file.

Threat Summary

NameOntology.dll
TypeEither a Trojan or a False Positive detection.
Short DescriptionIf Trojan, attacks the graphics of your video card. If false positive, the .dll process is detected as malicious by some antivirus programs as a Trojan.
SymptomsSuspicious behavior of the .dll process. May display system errors, such as: “The procedure entry point CreateApplicationWrapper could not be located in the dynamic link library Ontology.dll”.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by Ontology.dll

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User ExperienceJoin Our Forum to Discuss Ontology.dll.

Ontology.dll Detection – How Did I Get It

In general, the Ontology.dll is a process which is a support file of the drivers of your Nvidia GPU. In most cases, the process is false-positive and it is installed along with the conventional installation of the video card drivers. The file contains instructions which assist the programs within the driver of the GPU to work properly.

If the Ontology.dll is a malicious file, which may be the case, if your computer has been infected with malware, there are several different methods by which this could have happened:

  • If you open a suspicious e-mail attachment, causing the infection.
  • If your computer has already been previously infected with malware.
  • If you install a fake setup, execute a fake license activator, game crack or patch which is actually the payload dropper file of the Trojan, that may be related to Ontology.dll.

Ontology.dll – More Information

Ontology.dll is an important process which may be responsible for specifying the specific video card that you run on your computer. The process may also assist processes of the drivers to be executed by containing functions in it that assist the central executable files of the programs of your driver to operate. In general, if the process is the original one, it may not be malicious at all.

But, since this process is of importance to the functioning of the drivers, it can also be replaced with it’s analogue process, which is configured to serve the interests of malware, which may have infected your computer. Such malware may generally be:

  • Mining Trojans which take system resources from your GPU (Video Card).span>
  • Classic Trojan Horse that may steal information from your computer and make screenshots of your desktop.
  • Botnet-related Trojan, aiming to connect your computer to a zombie network.

Whatever the case of Ontology.dll may be, it is safest to check your computer for malware and if detected to remove it immediately.

Remove Ontology.dll Malware and Secure Your PC

In order to check your computer for malware, you need to first located the Ontology.dll file, which is in the following directory:

→ C:\Users\”UserName”\AppData\Local\NVIDIA\NvBackend\ApplicationOntology

Then, you can use a detection website, like VirusTotal.com or ZipeZip.com to check if the file is malicious or no.

The best method to check if the Ontology.dll file is actually malware is to run a scan with an advanced antimalware program in order to establish if there is other malware, related to this file on your PC and secure it completely.

Automatically remove Ontology.dll by downloading an advanced anti-malware program

1. Remove Ontology.dll with SpyHunter Anti-Malware Tool

Remove Ontology.dll with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove Ontology.dll.2. Scan with SpyHunter to Detect and Remove Ontology.dll.
Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.

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Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.
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Step2: After SpyHunter has finished scanning your PC for any Ontology.dll files, click on the ‘Fix Threats’ button to remove them automatically and permanently.
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Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

2. Back up your data to secure it against infections and file encryption by Ontology.dll in the future

Back up your data to secure it against attacks in the future

IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data automatically with cloud backup and insure it against any type of data loss on your device, even the most severe. We recommend reading more about and downloading SOS Online Backup .

To back up your files via Windows and prevent any future intrusions, follow these instructions:

1. For Windows 7 and earlier 2. For Windows 8, 8.1 and 10 3. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu
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2-Type Backup And Restore
3-Open it and click on Set Up Backup
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4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
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5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
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6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by Ontology.dll.
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1-Press Windows button + R
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2-In the window type ‘filehistory’ and press Enter
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3-A File History window will appear. Click on ‘Configure file history settings’
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4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
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5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from Ontology.dll.

1- Press Windows button + R keys.
sysdm
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
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3- A System Properties windows should appear. In it choose System Protection.
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5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from Ontology.dll is on.
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Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
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2-Click on the Previous Versions tab and then mark the last version of the file.
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3-Click on Apply and Ok and the file encrypted by Ontology.dll should be restored.

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Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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