Symptoms of an Infected Computer (virus)

This KB Article References: Symantec Endpoint Protection Antivirus
This Information is Intended for: Instructors, Staff, Students
Created: 09/25/2015 Last Updated: 04/09/2024

All malicious programs are covered under the umbrella term malware - adware, ransomware, rootkits, spyware, trojans, worms,  and viruses - all are considered malware. It is important that you regularly check your computer for malware, as a malware infection puts your personal data at risk. Keep all system software up to date to reduce the risk of infection.

Symptoms of Malware

  • Your computer or web browser has dramatically slowed down over a period of a few days/a week
  • Frequent freezing or crashing
  • Modified or deleted files
  • New programs or desktop icons that you do not recall installing/creating
  • Programs running without your consent
  • Programs closing without your consent
  • Changes in your security settings
  • Unusual emails/social media messages being sent without your permission to a large audience
  • Pop-up advertisements:  Most browsers suppress these by default so if you are getting them, something has changed those settings (or you have otherwise explicitly allowed pop-ups)
  • Your default search engine has been changed without you altering it
  • New toolbars in the web browser
  • Browser links redirect to the wrong web page

What’s the Next Step?

You should run an antivirus scan immediately. If you’re looking for an antivirus program, Stony Brook provides a free subscription to Symantec. If antivirus doesn’t solve the problem, contact Customer Engagement & Support.

For More Info

Check out Google’s article/video on keeping your devices secure.


For More Information Contact

Customer Engagement and Support