A Trojan program or a virus surprise

There are many varieties of computer viruses. Some are only part of the program, others are complete and useful app. This is a Trojan program. As a rule, it is intended for implementation in computer system. Moreover, Trojan or refers the offender information from the infected computer, or destroy the system from within and uses it as a “tool of crime”. A vivid example of such a virus is the programme waterfalls.scr, which is disguised as a screensaver.

The Trojan program was named after all the famous wooden horse by which the Greeks took and destroyed Troy impregnable. Like the Trojan horse of the same name, the program looks harmless and useful gift, but in reality it is an insidious virus-a surprise. Before installation be able to recognize this virus is almost impossible. Some Trojans even after installation, continue to perform the functions of a program, under which was concealed. To reproduce a virus doesn't, but I started it, each time the user resumes the destructive activities in your computer. Almost all viruses of this type consist of client and server. The server is implemented in your system, and the client uses the criminalOm to manage it.

The Trojan program has six types of malicious activities. Some viruses open a criminal remote access, others simply destroy data, download additional pests, copying “fake” links to the sites with paid registration, disable the antivirus and carry out a DDoS attack. If the infected computer is connected to modem Internet, the Trojan makes phone calls, then the user account is “thinner” by a significant amount.

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Malware protection

There are several signs that determine infection by the Trojan. First of all it is necessary to pay attention to the registry startup. There appeared “unauthorized” program may be a virus. Indicates infection and unintended user download games, apps, or videos, and any comments. In the startup process of computer virus can reboot. The Trojan program can start viewing video or images to open and close the console drive or arbitrarily shut down the computer.

Because of the abundance of forms and types common way of dealing with a Trojan does not exist. If the system is infected, you should clean the folder of temporary Internet files, and then scan the system with antivirus. If the object is detected by the antivirus is not removed or cleaned, it is possible to find and remove it manually. But the total infestation will only reinstall the operating system.

One of the new virus is called Qhost. A Trojan of this type is a modified Windows file size of 2600 bytes. New virus locks the user navigates to specific sites and requests to the selected servers. The lock is added to the file Trojan named host list “forbidden” sites. To neutralize this virus, you can edit this file in the “Notepad”, and then scan the system by antivirus program.