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Malware Symptoms & Threats

The malware symptoms below are common signs of a malware infection. However, many types of malware operate without alerting you to their presence. These covert programs may be even more of a malware threat, as they can lead to Internet dangers like identity theft and credit card fraud. The only way to know for sure if your computer has a malware infection is to run a free scan.

PC Performance Problems

Slow PC or frequent computer crashes? Even a small amount of malware on a system can slow down computing and crash your PC because it operates in the background, sapping hard drive resources. Learn more about combating poor PC performance.

Unexplained PC Behavior

Spyware can cause some unexplained PC behavior, especially for your browser. So if things are happening that you did not initiate, you may already be a victim. Some common changes in behavior include: mysterious new toolbars you can’t delete, unexplained changes to homepage settings and suspicious search results. Learn more about how you may lose control of your PC.

Interruptions from Pop-ups and Spam

Familiar with pop-ups and spam? Harmless enough, right? Don't be fooled. While many pop-ups and emails from reputable companies are safe, the adware programs that generate illegitimate pop-ups are capable of installing spyware to hijack your browser and capture your personal information. Learn more about how pop-ups and spam can be more dangerous than annoying.