Symptoms of an infected computer
- Solution ID:1104650
- Last Updated:Aug. 14, 2019 12:25 AM (PST)
- Applies to:Antivirus for Mac - 2018;2019;2020;Antivirus+ Security - 2018;Antivirus+ Security - 2019;Antivirus+ Security - 2020;Internet Security - 2018;Internet Security - 2019;Internet Security - 2020;Maximum Security - 2018;Maximum Security - 2019;Maximum Security - 2020;Premium Security - 2018;Premium Security - 2019;Premium Security - 2020;
- Checking if your computer is infected | Trend Micro Security
In this article, you will learn how to determine if your computer is infected by a malware.
Knowing the symptoms of a malware infected computer allows you to make the necessary actions on how to remove and prevent it.
Below are the common symptoms exhibited by a computer infected by a malware:
Opening a file, folder or programs take much longer than usual.
- You cannot move your mouse.
- No response from the keyboard when you are working on a document.
- The program you are using does not respond anymore.
- Your computer crashes and restarts frequently.
- The computer does not run normally after it restarts.
- Your computer boots up slower than usual.
- It takes longer to start using your computer to open programs or files.
When browsing the Internet, you encounter annoying pop-ups such as advertisements, driver errors, lottery, games, etc.
- Programs on your computer don't work correctly and you receive a pop-up warning like “critical file is missing” or "the program cannot start because ... is missing".
- Some of the files you created, such as images or documents, are gone.
- Your disk space suddenly doubles or triples in size without you doing anything.
- Files are duplicated.
There are toolbars on your web browsers that were not there before.
When you try going to a certain website, you are redirected to a different one.
You hear unusual sounds on your computer, but there are no programs or applications open.
There are instances where you may encounter unusual behavior in your computer, such as random audio advertisements.
While using your computer, you receive pop-up messages telling you that your computer has been infected and you need to purchase an antivirus application to resolve the issue.
- Task Manager
- Registry Editor
- System Configuration
- Other Windows Services/Applications