Freeware refers to software that is free to use, without advertisement or payment. Although most open source software is also freeware, the term is generally reserved for software that is not open source but is still free — as in free beer, not freedom.
Malware is a broad category which encompasses any software which may act contrary to the user’s demands. For this reason, various subcategories, including scamware and ransomware have been created over the years to more precisely define malware. Some viruses can be considered malware, if they were downloaded with some other stated intention.
Malware is short malicious software, and it is the malicious nature of it that defines it. Buggy software cannot rightly be considered malware, even if it has negative impacts on the user, because the creator did not intend for these problems to befall the user.Detection
Malware can often be detected by anti-virus programs, [...]
“Malvertising” is short for malicious advertising and refers to online advertisements which seek to download malware onto the computer of the viewer. Malvertising campaigns are run similar to normal advertising campaigns, although they are typically more likely to thrive in areas of the Internet where other advertisers don’t bother, such as pornography. In fact, in one relatively recent study, the site xHamster had malware in a significant number of its pages.
The data showed that xhamster – listed by monitoring firm Alexa as the 46th most popular site on the internet – had malvertising on 1,067 out of 20,986 pages (5%) screened in the past 90 [...]
Adware refers to software that is free to acquire and use, but also includes ads, sometimes ads which use network and dynamically change, and therefore can occasionally be vulnerable to malvertising and malware. While considered freeware, the fact that they require the user to view advertisements in order to use them makes them inherently less free. It differs from shareware in that the advertisements are part of the experience and the user may use the software for any length of time, whereas with shareware, the user must eventually pay for the software to continue use.
In a famous instance, the previously popular opnen source repository hosting site, Sourceforge, was caught [...]