Ever had pop ups explode on your screen, blocking everything else and driving you crazy? Well youâ€™ve been a victim of malware. Malware (malicious software) is a blanket term used for any software program or code that gets installed on a userâ€™s computer without the userâ€™s informed consent and knowledge and wreaks havoc. It usually turns the computer into a zombie, in that the user no longer has any control of the computerâ€™s activity and the malware can be said to have â€˜taken overâ€™. A large number of viruses, worms, Trojans, backdoors, adware and spyware come under the malware category. In other words, when the intentions of the software and its creators are malicious, itâ€™s malware. Since the infected computer in most cases becomes a â€˜zombieâ€™ or a â€˜robotâ€™ computer, especially if the malware provides the creator with remote access to the compromised PC, malware plays a crucial role in botnet activities. According to a report by Trend Micro, an internet security technology company, botnet activities will be the number one threats on the internet in 2009 and malware, a big part of them.