Trojan: what's it like to discover and remove

Today, in the World Wide Web, you can find so many underwater reefs in the form of viruses, which you can not count. Naturally, all threats are classified by the method of penetration into the system, the harm done and the methods of disposal. Unfortunately, one of the most dangerous is the Trojan (or Trojan) virus. What is this threat, we will try to consider. In the end, we'll figure out how to safely remove this muck from a computer or mobile device.

"Troyan" - what is it?

Trojan viruses are malicious programs of a self-copying type with their own or embedded executable codes that carry a serious enough threat to any computer or mobile system.

For the most part, the most affected systems are Windows and Android. Until recently, it was thought that such viruses on UNIX-like "operating systems" did not work. However, just a few weeks ago, the virus was attacked and "apple" mobile gadgets. It is believed that the Trojan is the threat. What is this virus, we now look.

Analogy with history

Comparison with historical events is not accidental. And before you figure out how to remove the Trojan virus, let's look at the immortal work of Homer's Iliad, which describes the capture of the rebellious Troy. It is known that it was impossible to penetrate the city in the usual way or to take it by storm, therefore, it was decided to give the inhabitants of a huge horse as a sign of reconciliation.

As it turned out, inside it were soldiers who opened the city gates, after which Troy fell. Similarly, the Trojan program behaves. What is most sad is that such viruses do not spread spontaneously, like some other threats, but purposefully.

How does the threat penetrate the system?

The most common way that is used to penetrate a computer or mobile system is to disguise itself under some kind of user-friendly or even standard program. In some cases, the virus can insert its own codes into existing applications (usually system services or user programs).

Finally, malicious codes can penetrate computers and networks in the form of graphic images or even HTML documents - either coming in email attachments or copied from removable media.

With all this, if the code is embedded in a standard application, it can still partially perform its functions, the virus itself is activated when the corresponding service is started. Worse, when the service is in startup and starts with the system.

Effects of exposure

With regard to the impact of the virus, it can partially cause system failures or Internet access violations. But this is not his main goal. The main task of the Trojan is the theft of confidential data for the purpose of their use by third parties.

Here you have PIN-codes of bank cards, and logins with passwords for access to certain Internet resources, and state registration data (numbers and series of passports, personal identification numbers, etc.), in general, all that is not subject to The disclosure, in the opinion of the owner of the computer or mobile device (of course, provided that such data is stored there).

Alas, with the theft of such information, it is impossible to predict how it will be used in the future. On the other hand, you can not be surprised if somehow you get a call from a bank and say that you have a loan debt, or you lose all your money from a bank card. And these are just flowers.

Virus removal in Windows

Now let's move on to the most important thing: how to remove the Trojan virus. This is not as easy as some naive users believe. Of course, in some cases, you can find and neutralize the body of the virus, but since, as already mentioned above, it is able to create your own copies, not one or two, their search and removal can become a real headache. In this case, neither the firewall, nor the full-time anti-virus protection, if the virus has already been missed and embedded in the system, will not help.

In this case, the Trojan is recommended to be removed using portable anti-virus utilities, and in the case of RAM capture - special programs that are downloaded before the start of the OS from the optical media (disk) or USB-device.

Among portable applications it is worth noting products like Dr. Web Cure It and Kaspersky Virus Removal Tool. Of the disk programs the most functional is Kaspersky Rescue Disc. It goes without saying that dogma is not their use. Today, such software can be found as many as you want.

How to remove the Trojan from Android

As for Android-systems, it's not so simple. Portable applications for them are not created. In principle, as an option, you can try to connect the device to a computer and scan internal and external memory with a computer utility. But if you look at the reverse side of the coin, where is the guarantee that the virus will not penetrate into the computer when it is connected?

In this situation, the problem of how to remove the Trojan from the "Android" is solved by installing the appropriate software, for example from the Google Market. Of course, there are so many things here that you just get lost in guessing what to choose.

But most experts and experts in the field of data protection are inclined to think that the best is the 360 Security application, which is able not only to detect threats of almost all known types, but also to provide comprehensive protection of the mobile device in the future. It goes without saying that it will constantly hang in the RAM, creating an additional load, but, you see, security is still more important.

What is worth paying attention to yet

So we figured out the topic "Trojan - what is this type of virus?". Separately, I want to draw the attention of users of all systems without exception for a few more moments. First of all, before you open the mail attachments, always check them with antivirus software. When installing programs carefully read the suggestions for installing additional components such as add-ons or panels for the browser (the virus can also be disguised there). Do not visit questionable sites if you see an anti-virus warning. Do not use simple free antiviruses (it is better to install the same package of Eset Smart Security and activate with free keys every 30 days). Finally, store passwords, PIN codes, bank card numbers and in general all confidential information in encrypted form exclusively on removable media. Only in this case it can be at least partially certain that they will not be stolen or, even worse, used for malicious purposes.