KTC Virus Files of Ransomware — How to remove virus?

The Ktc virus belongs under the ransomware type of infection. Ransomware of such sort encrypts all the data on your PC (images, documents, excel sheets, music, videos, etc) and appends its extra extension to every file, leaving the RESTORE_FILES_INFO.txt text files in every folder containing encrypted files.

Ktc virus: what is known so far?

☝️ A scientifically accurate description for the Ktc would be “a ransomware-type malicious agent”.

Ktc will append its specific .KTC extension to every file’s title. For example, an image named “photo.jpg” will be turned into “photo.jpg.KTC”. Likewise, the Excel sheet with the name “table.xlsx” will be renamed to “table.xlsx.KTC”, and so forth.

In each folder that contains the encrypted files, a RESTORE_FILES_INFO.txt text file will be created. It is a ransom money memo. It contains information about the ways of paying the ransom and some other information. The ransom note usually contains a description of how to purchase the decryption tool from the racketeers. That is how they do it.

Ktc outline:

In the picture below, you can see what a folder with files encrypted by the Ktc looks like. Each filename has the “.KTC” extension appended to it.

How did my computer get infected with Ktc ransomware?

There are plenty of possible ways of ransomware infiltration.

There are currently three most exploited methods for tamperers to have the Ktc virus working in your system. These are email spam, Trojan injection and peer-to-peer file transfer.

If you access your inbox and see letters that look like familiar notifications from utility services providers, delivery agencies like FedEx, Internet providers, and whatnot, but whose sender is strange to you, be wary of opening those emails. They are most likely to have a ransomware file enclosed in them. Therefore, it is even more dangerous to download any attachments that come with emails like these.

As for the peer-to-peer networks like torrents or eMule, the danger is that they are even more trust-based than the rest of the Internet. You can never guess what you download until you get it. So you’d better be using trustworthy websites. Also, it is reasonable to scan the folder containing the downloaded objects with the antivirus as soon as the downloading is done.

How to remove the Ktc virus?

It is crucial to note that besides encrypting your data, the Ktc virus will most likely deploy the Azorult Spyware on your computer to get access to credentials to different accounts (including cryptocurrency wallets). The mentioned program can extract your credentials from your browser’s auto-filling data.

Often criminals would decode several of your files to prove that they really have the decryption tool. As Ktc virus is a relatively new ransomware, safety measures engineers have not yet found a way to undo its work. Nevertheless, the decryption instruments are constantly updated, so the solution may soon arrive.

Of course, if the malefactors do the job of encoding victim’s essential files, the hopeless person will most likely fulfill their demands. Nevertheless, paying to racketeers gives no guarantee that you’re getting your files back. It is still dangerous. After obtaining the money, the racketeers may send a wrong decryption key to the victim. There were reports about criminals just disappearing after getting the ransom without even bothering to reply.

The optimal safety measure against ransomware is to have aan OS restore point or the copies of your critical files in the cloud drive or at least on an external disk. Of course, that might be insufficient. Your most crucial thing could be that one you were working on when it all started. Nevertheless, it is something. It is also advisable to scan your drives with the antivirus program after the OS restoration.

Ktc is not the only ransomware of its kind, since there are other specimens of ransomware out there that act in the same manner. For instance, Xcmb, Mljx, Hudf, and some others. The two major differences between them and the Ktc are the ransom amount and the encoding method. The rest is the same: files become encrypted, their extensions changed, ransom notes are found in every directory containing encrypted files.

Some fortunate people were able to decode the blocked files with the aid of the free tools provided by anti-malware experts. Sometimes the racketeers mistakenly send the decoding key to the wronged in the ransom note. Such an extraordinary fail allows the victim to restore the files. But of course, one should never expect such a chance. Remember, ransomware is a bandits’ tool to pull the money out of their victims.

How do I avert ransomware infiltration?

Ktc ransomware doesn’t have a superpower, neither does any similar malware.

You can defend your system from its attack taking several easy steps:

• Never open any letters from unknown mailboxes with unknown addresses, or with content that has nothing to do with something you are expecting (can you win in a money prize draw without even taking part in it?). In case the email subject is likely something you are expecting, scrutinize all elements of the questionable letter carefully. A hoax email will surely contain mistakes.
• Avoid using cracked or unknown programs. Trojan viruses are often distributed as an element of cracked software, most likely under the guise of “patch” to prevent the license check. But untrusted programs are very hard to tell from reliable software, as trojans may also have the functionality you seek. Try to find information on this program on the anti-malware message boards, but the optimal solution is not to use such programs at all.

Reasons why I would recommend GridinSoft²

Download Removal Tool.

Run the setup file.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

Click on “Clean Now”.

FAQ

🤔 How can I open “.KTC” files?Can I somehow access “.KTC” files?

There’s no way to do it, unless the files “.KTC” files are decrypted.

🤔 The encrypted files are very important to me. How can I decrypt them quickly?

If the “.KTC” files contain some really important information, then you probably have them backed up. If not, there is still a function of System Restore but it needs a Restore Point to be previously saved. All other solutions require time.

🤔 What to do if the Ktc malware has blocked my PC and I can’t get the activation key.

🤔 What could help the situation right now?

Some of the blocked files can be found elsewhere.

• If you sent or received your critical files by email, you could still download them from your online mail server.
• You might have shared images or videos with your friends or relatives. Simply ask them to send those pictures back to you.
• If you have initially got any of your files from the Web, you can try doing it again.
• Your messengers, social media pages, and cloud drives might have all those files as well.
• It might be that you still have the needed files on your old PC, a notebook, mobile, flash memory, etc.

HINT: You can employ data recovery programs⁴ to get your lost data back since ransomware blocks the copies of your files, deleting the authentic ones. In the video below, you can see how to use PhotoRec for such a recovery, but remember: you can do it only after you eradicate the virus with an antivirus program.

Also, you can contact the following governmental fraud and scam sites to report this attack:

• In the United States: On Guard Online;
• In Canada: Canadian Anti-Fraud Centre;
• In the United Kingdom: Action Fraud;
• In Australia: SCAMwatch;
• In New Zealand: Consumer Affairs Scams;
• In France: Agence nationale de la sécurité des systèmes d’information;
• In Germany: Bundesamt für Sicherheit in der Informationstechnik;
• In Ireland: An Garda Síochána;

To report the attack, you can contact local executive boards. For instance, if you live in USA, you can have a talk with FBI Local field office, IC3 or Secret Service.

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