What is Malware?
Malware is the short name for ‘malicious software’. It is software designed and developed for the purpose specifically to damage or disrupts a single computer, server, or computer network. Malware can include computer viruses, worms and Trojan horse.
Malware is a relatively new form of computer problems. Generally, malware will track how you use your computer; change adverts and links send you to another websites or pop up adverts on websites where they should not have occurred. The key entrance points are where the malware can enter the system, whether it is a single computer, server or computer network. It can enter without requiring any pre-existing presence on that system.
These entrance points can be from a human operator, removable disks in the booting process, incoming files from diskettes, LAN shares, downloads, email attachments, removable disks where AutoRun information is supported, data files (whether it is Office or HTML) where script are auto-executed, and hacking through networks such as LAN or internet.
Before a malware can become memory-resident it needs to be executed first. The first step to initial execution is when the user executes the file. You would often find that malware will employ other techniques that would ensure at least once execution in every operating session. This is done by putting links to itself in places where the system initializes or pre-configures the operating session. The places or configuration files where it is accessed by an operating system is at startup. There is no better way to execute or to triggered to reside in memory than at computer startup.