Spyware is a general term used to describe software that modifies certain behaviors, such as advertising, personal data collection, or computer configuration, usually without the right consent.
Spyware is often associated with software (eg adware) or personal or sensitive information tracking program.
This does not mean that any software that gives ads or tracks online activities is bad. For example, you can subscribe to a free music service, but you'll "pay" for the service by accepting targeted ads. If you understand the terms and accept them, you have decided that it is fair trade. You might want to let the company keep track of your online activities to determine which ads to show.
Other forms of spyware change your computer, which can be annoying and cause your computer to slow or crash. programs can change the homepage of your web browsers or the search page or add additional components to your browser that you do not need or do not want. However, these programs make it very difficult to restore the settings originally.
The most important thing in any case is whether (or someone using your computer) has understood what the software will be and agreed to install the software on your computer.
There are many ways to find spyware or other unwanted software on your computer. A general trick is to install the software secretly when installing other software, for example, through a music or video file sharing program.
Software that securely collects user data through the user's Internet connection without their knowledge, usually for advertising purposes. Used as a hidden component of spyware applications as a hidden part of freeware or shareware programs that can be downloaded from the Internet; however, it should be noted that most of the shareware and freeware applications do not come to SpyWare. After installation, Spyware monitors user activity on the Internet and passes this information to someone else in the background. Spyware can collect email addresses, even passwords and credit card numbers.
With the exception of ethics and privacy, SpyWare steals the use of computer memory resources and the acquisition of bandwidth as it sends information back to the home base of spy equipment through the user's Internet connection. Because SpyWare uses memory and system resources, background-based applications can lead to system failures or general systemic disease
As SpyWare acts as an independent executable program, it can track keystrokes, snoop other applications, such as chat programs or word processors, install other SpyWare programs , read the cookies, modify the default website on the web browser and consistently forward this information to the SpyWare writer who either uses or sells information to another party for advertising / marketing
License agreements accompanying software downloads sometimes alert the user to install SpyWare with the requested software, but the license agreements are not always fully legible because SpyWare is often legible, legible legitimate part of the installation exclusion.
Examples of SpyWare
How common SpyWare programs show the diversity of behaviors encountered in such attacks. It should be noted that, like computer viruses, researchers provide SpyWare programs that their creators can not use. Programs can not be grouped into "families" with "shared code", but on frequent behaviors or "follow-up" of apparent financial or business relationships. For example, many of the SpyWare programs distributed by Claria are commonly referred to as "Gatorns". Likewise, frequently-installed programs are part of the same SpyWare suite, even if they work separately
o The CoolWebSearch program group exploits vulnerabilities in Internet Explorer. This packets traffic traffic to ads on sites including coolwebsearch.com. Displays pop-up ads, rewrites the search engine results, and alters the infected host's host file to directly control DNS queries on these sites.
o The Internet Optimizer (also known as DyFuCa) redirects Internet Explorer error pages to ads. When users are tracking a bad URL or typing an incorrect URL, they see an ad page. Because password-protected sites (HTTP-based authentication) use the same mechanism as HTTP errors, the Internet Optimizer does not allow the user to access the password-protected sites.
o Zango (formerly 180 solutions) advertisers from sites visited by visitors. It also modifies HTTP requests for affiliate ads associated with the site, so ads do not get profits for the 180 Solutions Company. It opens up popup ads that are located on competing companies' websites.
o HuntBar, also known as WinTools or Adware, WebSearchet is an ActiveX driver installed on affiliate websites or other SpyWare-enabled ads – for example, how SpyWare can install more SpyWare. These programs add toolbars to IE, track aggregate browsing behavior, redirect affiliate references, and display ads.
oZlob Trojan or just Zlob, uploads itself to your computer via the ActiveX codec and sends feedback to the Control Server. Certain information may include search history, site visits, and most important stroke.