Malware is an abbreviated term meaning “malicious software”. This is a software that is specifically design to gain access or damage the computer without your knowledge. There are various types of malware including spyware, keyloggers, true viruses, worms and many types of malware that can harm your computer.
How do you know that your system is infected to malware?
1. The intention of malware is to slow down your PC day by day. Even it may also slow down your Internet and application software’s speed.
2. Another sign of malware is POPUP. It suddenly open a Window on your desktop when you click mouse button or automatically.Generally this type of malware can enter into a system through visiting harmful websites or from any untrusted software installation.But this type of malware is very difficult to remove from system.
3.System or Application software may be crashed from malware infection,and can be caused of BSOD (Blue Screen Of death).Your system may unexpected shutdown and come a blue screen in front of you,or after power on a blue screen can be stuck on screen. Though BSOD can be caused from Hardware Related Issue also.
4.Your web Browser default home page change automaticaly,and also you notice that some new buttons and tool bars which are not present in earlier,are present suddenly to your browser.
5. you notice a lot of hard drive activity even when your computer is idle ,No download,upload ,copy is ocurred,then this is a warning sign of a malware infection.you can check the Hard Disk Drive activity from Resource Monitor.