Malware, short for malicious software, is any software used to disrupt computer operation, gather sensitive information, or gain access to private computer systems.
It can appear in the form of executable code, scripts, active content, and other software.
'Malware' is a general term used to refer to a variety of forms of hostile or intrusive software.
The term badware is sometimes used, and applied to both true (malicious) malware and unintentionally harmful software.
Malware includes computer viruses, worms, trojan horses, ransomware, spyware, adware, scareware, and other malicious programs. As of 2011 the majority of active malware threats were worms or trojans rather than viruses.
In law, malware is sometimes known as a computer contaminant, as in the legal codes of several U.S. states.
Malware is often disguised as, or embedded in, non-malicious files.
Spyware or other malware is sometimes found embedded in programs supplied officially by companies, e.g., downloadable from websites, that appear useful or attractive, but may have, for example, additional hidden tracking functionality that gathers marketing statistics. An example of such software, which was described as illegitimate, is the Sony rootkit, a Trojan embedded into CDs sold by Sony, which silently installed and concealed itself on purchasers' computers with the intention of preventing illicit copying; it also reported on users' listening habits, and created vulnerabilities that were exploited by unrelated malware.
The term malware only applies to software that intentionally causes harm. Software that causes harm due to bugs or poor design are not classified as malware; for example some legitimate software written before the year 2000 had errors that caused serious malfunctions when the year changed from 1999 to 2000 - these programs are not considered malware.
Software such as anti-virus, anti-malware, and firewalls are used by home users and organizations to try to safeguard against malware attacks.
As of 2012 approximately 60 to 70 percent of all active malware used some kind of click fraud to monetize their activity.
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Fri Aug 29, 2014 4:11 pm by 
Subject: -- ~~ WhaT IS MalwarE ? ~~-- 
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