Let the trojan is not making waves: Analysis Trojan program hiding place _ network surfing

Trojan horses often go into your system when you don't notice, and this article introduces some of the places where they often hide. After reading this article, that you are not a master you can easily clear the system in the Trojan horse program.

1, integrated into the program

In fact Trojan is also a server-client program, in order not to allow users to easily delete it, it is often integrated into the program, once the user activates the Trojan, then the Trojan file and an application bundled together, and then uploaded to the server to cover the original file, so even if the trojan was deleted, As long as the application bundled with the Trojan, the Trojan will be installed up. Bound to an application, such as binding to a system file, every time Windows startup starts a Trojan.

2, hidden in the configuration file

Trojan is too cunning, know the rookie is usually using the graphical interface of the operating system, for those who have not very important configuration files are mostly indifferent, which just give a trojan to provide a hiding place. And the use of the special role of configuration files, Trojans can easily in everyone's computer run, attack, and thus peeping or watching everyone. However, now this way is not very covert, easy to find, so in Autoexec.bat and Config.sys loaded Trojan horse program is not seen, but also can not be taken lightly oh.

3, lurking in the Win.ini

Trojan Horse to achieve control or monitor the purpose of the computer, must run, however, no one will be silly to their own computer to run the damn Trojan. Of course, the Trojan is also early psychological preparation, know that human is a high IQ of animals, will not help it to work, so it must find a safe and can be in the system start automatically run the place, so lurking in the Win.ini is a Trojan feel more comfortable place. You may wish to open Win.ini to see, in its [Windows] field has the start command "load=" and "run=", in general, "=" after the blank, if there is followed by the program, for example: Run=c:windows ile.exe load= C:windows Ile.exe

At this time you must be careful, this file.exe is probably a Trojan oh.

4, camouflage in the ordinary document

This method appears late, but it is now very popular, for unskilled windows operators, it is easy to be fooled. The specific method is to disguise the executable file as a picture or text----in the program to change the icon to the Windows default Picture icon, and then change the file name to *.jpg.exe, because the Win98 default setting is "Do not display known file suffix name", the file will be displayed as *.jpg, People who don't pay attention to this icon is a Trojan horse (if you embed a picture in the program is more perfect).

5, built into the registry

The above method makes the Trojan really comfortable for a while, no one can find it, and can automatically run, it is fast! However, the long time, the human quickly took it out of the hand, and it was severely punished! But it is also unwilling, summed up the failure of the lesson, that the above hiding place is very easy to find, now must hide in not easy to find place, so it thought of the Registry! Indeed, due to the complexity of the registry, Trojans often like to hide in here merry, quickly check, what procedures in its next, open eyes carefully look, do not let go of the Trojan Oh: hkey_local_ Machinesoftwaremicrosoftwindowscurrentversion all the key values that begin with "run"; hkey_current_ Usersoftwaremicrosoftwindowscurrentversion all key values that begin with "run" ; hkey-users.defaultsoftwaremicrosoftwindowscurrentversion all the key values that begin with "run".

6, hiding in the System.ini

Trojan Horse is really everywhere! Where there is a loophole, where it is drilled! This is not, Windows installation directory under the System.ini is also a trojan like hidden place. Or be careful, open this file to see if it is different from the normal file, in the [boot] field of the file, is there such content, that is Shell=Explorer.exe File.exe, if there is such content, then you are unfortunate, because here File.exe is the Trojan server program! In addition, in the [386Enh] field in System.ini, be careful to check the "driver= Path program name" In this paragraph, there may also be used by Trojans. Again, in the System.ini [mic], [drivers], [drivers32] These three fields, these sections are also played to load the role of the driver, but also add Trojan program good place, now you should know also to pay attention here.

7, invisible in the startup group

Sometimes the Trojans don't care about their whereabouts, it is more attention to the ability to automatically load into the system, because once the Trojan loaded into the system, any way you can not get rid of it (hey, this trojan skin is really too thick), so according to this logic, the Startup group is also a good place to hide the Trojan horse, Because this is really a good place to load and run automatically. The folder for the Move Group is: C:windowsstart Menuprogramsstartup, location in the registry: Hkey_current_usersoftwaremicrosoftwindowscurrentversion
Explorershellfolders startup= "C:windowsstart menuprogramsstartup". Be careful to check the startup group often!

8, concealed in the Winstart.bat

According to the above logic theory, the Trojan can automatically load the place, the Trojans like to stay. It's not, Winstart.bat is also a file that can automatically be run by Windows, and is automatically generated in most cases for applications and windows, and starts after Win.com is executed and most drivers are loaded (this can be learned by pressing the F8 key at startup and then by selecting a step-by-step Start method to track the startup process). Because the function of Autoexec.bat can be replaced by Winstart.bat, the Trojan can be loaded and run as it is in Autoexec.bat.

9, bundled in the boot file

That is, the application startup configuration file, the control side use these files to start the program's characteristics, will be made with the Trojan Start command file upload to the service side of the same name file, so you can achieve the purpose of starting the Trojan horse.

10, set in the Super connection

Trojan owner placed malicious code on the Web page, luring users to click, the user clicks the result is self-evident: Kaimen! Don't just click on the link on the page, unless you know it, trust it, die for it, and so on.