This spy scrutinizes all contents of the hard disk of your computer ( what programs are installed, what files and folders are stored , etc.) and sends the collected information to its owner . Information about what you are doing on the computer screen can collect spy. Its essence is that it periodically, at certain time intervals ( which are defined over ) makes screenshots (in computer slang — screenshots ) , and sends them to the host . By the way , this type of spyware is sometimes used in offices : with the help of the authorities to learn what the subordinates at work. Also great popularity among malicious use so-called » proxy spies .» Once a spyware gets into your computer , then this computer will act as a proxy server ( that is a proxy server, we talked about earlier ) . In practice, this means that an attacker and the Web can hide behind your name, and if his actions will carry destructive or criminal in nature — will have to answer for you. The most typical example — when the infected computer sending spam , which can cause problems with your ISP. Another popular type of attackers spyware — this postal spies . Their main task — to collect information about the e-mail addresses stored in the computer , and sending this information to the host. Information is collected normally in mail program and address book , and organizer. Such information is of high value to those involved in spamming . In addition, postal spies can lead openly destructive activity : change the contents of the letters , insert them in your ad units , etc. To combat spyware designed special software — security utilities and software categories AntiSpyware. Among them , for example , Microsoft Antispyware, SpywareBlaster, AVZ, Anti-keylogger ( this program is specifically designed to combat keyloggers ) , etc. Independently recognize the presence of spyware on your computer ? Spyware hallmark is that they are difficult to detect with regular anti-virus programs . Therefore, to deal with them is recommended to use special tools that are presented in a variety of online.