what is malware and what does it do
Best Answer: Malware will perform a variety of nasty activities, ranging from simple email advertising all the way to complex identity-theft and password-stealing. Malware steals your personal information and address book (identity theft and keystroke-logging). Malware floods your browser with pop-up advertising.
Malware, on the other hand, is an umbrella term that stands for a variety of malicious software, including Trojans, spyware, worms, adware, ransomware, and yes, viruses. So the logic follows: all viruses are malware. Not all malware are viruses.