There are many malicious computer programs. Every day their number increases, they become more professional and dangerous. Not all antiviruses are able to fight them. Recently, such a problem has become popular when the virus encrypted files in XTBL. The user does not have access to personal information.
What to do in this case? Unfortunately, many users make common mistakes, as a result of which they do not fix the problem, but make it more widespread. Therefore, you need to consider in detail the instructions for action.
What does a virus do on a computer?
Every malicious program comes in a certain way. But the principles of their action are approximately the same. First, they are downloaded to a computer via the Internet, removable storage media, or in some other way.
Then there is a direct impact on the OS or software. The tasks for all malicious programs vary, but they do not start working until they are on the computer.
After the virus has encrypted the files in XTBL, the user will invariably begin to attempt to open them. Which, naturally, will not happen. But in a prominent place will be a text document (or notebook) with an appeal to read it. It indicates the number of the wallet or card to which the creator of the virus will require a money transfer. In return, he will return access to information. Also, the data may be supplemented by a note that independent attempts to cope with the elimination of the problem can lead to a complete loss of information.
In addition to encryption, the virus changes file names. Usually he uses a random character set for this.
What do we have to do?
When the virus starts, your files are encrypted, and the process has started relatively recently, you can make several attempts to minimize the harm:
- Using the "Task Manager" to end the encryption process. If the computer is connected to the Internet, it must be turned off. Some malware works through the network.
- Write on the slip the code / number of the wallet or card, which is offered in a text document. This file can subsequently also be attacked, although it is unlikely.
- Scan your computer with installed antivirus software. Kaspersky works better than others, but it is in conflict. If it can help, then only after removing other antiviruses from the computer.
All these steps will not help eliminate encryption, but they will slow down the process. You can also send the original malware file to antivirus developers. Then the process of protecting against such a trojan will go faster.
What you do not need to do?
When a serious virus has encrypted CBF files, either a fresh anti-virus program or a qualified specialist can decrypt them. There are such actions, which in no case should be practiced by users:
- Treat or eliminate malware automatically or on your own. Removing the source of the problem will not help deal with it.
- Reinstall the OS.
- Use decoders recommended for solving similar problems with other trojans (they all differ significantly in codes).
- Use the decoders yourself, without having the skills to select them, or without first obtaining the advice of professionals.
- Clear temporary files, browser history or delete files that are not necessary (the virus can change their location, not just their names, as a result, important information is lost for the user).
- Change properties of encrypted files.
By the way, these rules should be followed if any other encryption virus was downloaded to the computer.
Troubleshooting options and consequences
When the virus encrypted files in XTBL, the user can not immediately determine this. Distress signals are, firstly, the sudden appearance and disappearance of data. Secondly, the PC starts to freeze, despite the fact that the processor does not actually boot. And thirdly, from time to time a window appears on the monitor where the creator and / or distributor of the malware requires the user to transfer money.
Recovery of files encrypted by the virus may or may not succeed. It all depends on the complexity of the trojan. But there are two easy ways to do this.
In the first case, the user pays money to the distributor of the virus. The disadvantages of the method - may not work. Moreover, the probability is quite large.
In the second case, you need to hire programmers who, using the available utilities and developments, will try to return the encrypted information. The method is effective, but costly temporarily and financially.
You can also use one of the proposed programs, but there is no guarantee that it will work.
Decryption program
Best of all, decryption of files encrypted with a virus is possible for specialized programs. An excellent utility is VectorDecode. You can download it on the official website.
Users note several advantages of the program in question:
- Low cost.
- Convenience and ease of use. Even an inexperienced user can cope with the interface and settings.
- Works with many encrypted files, including CBF, VAULT, and XTBL. Quickly recovers information, opening up user access to personal data.
- Written by a group of programmers who sought to create a universal weapon against cryptographic viruses.
Thus, by means of a small program for which you have to pay (it is not in the public domain), the consequences of the virus can be eliminated.
User Tasks
After the virus-pad virus has encrypted the files, users have two main tasks. First, he needs to save the information. Any program that deals with encryption does not work instantly. She needs time. Therefore, the sooner a virus is detected, the less harm it will cause. If the user does not know how to complete the process in the dispatcher, then he needs to turn off the equipment. When a technique does not work, viruses on it are also not capable of action.
Secondly, you need to save all the hacking data so that you can study them. It is highly likely that the attack was carried out by a virus that is already known to programmers and antivirus developers. But there is a chance that it is new. And then only hacking data will help you write a program to fix the problem. To do this, you do not need to turn on the computer after turning off the power or delete any files from its hard drives.
The main thing is not to panic if the system has been attacked. The problem is complex, but it can be fixed. It is important not to start the situation, and not to try to solve it yourself if there are no relevant skills.
Varieties of cryptographers
There are several malware that are commonly classified as ransomware:
- Trojan-Ransom.Win32.Rector. This worm usually asks to send SMS. Money is withdrawn from the subscriber’s account. The consequences of its activities are eliminated by the utility RectorDecryptor.
- Trojan-Ransom.Win32.Xorist. The virus displays a window on the monitor where it requires sending the code by mail, after which it sends instructions with further actions. Consequences are resolved using XoristDecryptor.
If the
virus encrypted the DOC XLS files, you can try to find the decryptor by the name of the malware. By the way, recently such useful programs are released by Dr.Web (naturally, the licensed version).
Conclusion
The fact is that if the virus encrypted files in XTBL, then some data can be restored immediately. If the work ahead is difficult, then even experienced professionals will not undertake it. It is much better to take preventive measures: do not download suspicious files on the Internet, do not follow links, or open strange letters. It would be nice to get a high-quality antivirus, and also not to use other people's removable media without preliminary verification. Then the computer will be reliably protected, and you will not have to face such troubles.