What is KTC Ransomware Virus?
KTC cryptovirus belongs to the ransomware type of malicious software. Programs like the KTC virus blackmail online users to pay ransom fees in order to get their files back. Unfortunately, files locked by this threat remain permanently damaged for an unspecified period of time. Valuable files marked with the extension .KTC are locked by a sophisticated cypher algorithm. The decryption of .KTC files is possible with the usage of a tool possessed by hackers. Instructions on how victims can obtain this tool are given by the content of the file RESTORE_FILES_INFO.txt.
If you are one of its victims then keep reading this article to learn more about KTC ransomware and find effective ways for its complete removal.
KTC Summary
| Name | KTC |
| Type | Ransomware, Cryptovirus |
| Malicious Extension | .KTC |
| Short Description | A data locker ransomware that utilizes strong cihper algorithm to encrypt personal files stored on the infected computer. It demands a ransom for a decryption solution. |
| Symptoms | Important files are locked and renamed completely. Their names are renamed with the extension .KTC. Corrupted files remain unusable until their code is reverted back to original state. |
| Ransom Message | RESTORE_FILES_INFO.txt |
| Distribution Method | Spam Emails, Email Attachments, Corrupted Websites, Software Installers |
| Detection Tool |
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Malware Removal Tool
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How Does KTC Ransomware Infect PCs?
Oftentimes, computer systems get infected by ransomware threats like KTC via malicious attachments. The attachments are typically contained in various spam email messages that pretend to be sent by trustworthy sources. Such email messages also feature links sometimes. The links may also be related to pages that run malicious scripts to download the ransomware on the machine.
What Does KTC Ransomware Do?
Like most malware of this kind, KTC virus is likely to store associated files and objects in some of the following system folders:
- %Roaming%
- %Windows%
- %AppData%
- %Local%
- %Temp%
The ransomware runs a lot of processes during the attack. Its goal is to make the detection of its activities very hard. It can even hook up to a running app and misuse its appearance in order to obtain administrative rights. Afterwards, it becomes able to manipulate system functionalities and pass through a few attack phases without any vivid traits.
An information-gathering operation may run in the background too. The KTC virus can gather some personally identifiable details and provide them to cybercriminals. Data records can then be used for crimes such as identity theft and financial abuse.
Still, the main goal of KTC ransomware is to try to force you to pay a ransom fee for the recovery of locked .KTC files. That’s why the KTC virus drops its ransom message that extorts a ransom fee. You as a victim of this ransomware may find and open the file RESTORE_FILES_INFO.txt that will inform you the following:
——————
| What happened? |
——————Your network was ATTACKED, your computers and servers were LOCKED,
Your private data was DOWNLOADED:
– Contracts
– Customers data
– Finance
– HR
– Databases
– And more other…———————-
| What does it mean? |
———————-It means that soon mass media, your partners and clients WILL KNOW about your PROBLEM.
————————–
| How it can be avoided? |
————————–In order to avoid this issue,
you are to COME IN TOUCH WITH US no later than within 3 DAYS and conclude the data recovery and breach fixing AGREEMENT.——————————————-
| What if I do not contact you in 3 days? |
——————————————-If you do not contact us in the next 3 DAYS we will begin DATA publication.
We will post information about hacking of your company on our twitter hxxps://twitter.com/RobinHoodLeaks or tublr hxxps://robinhoodleaks.tumblr.com/—————————–
| I can handle it by myself |
—————————–It is your RIGHT, but in this case all your data will be published for public USAGE.
——————————-
| I do not fear your threats! |
——————————-That is not the threat, but the algorithm of our actions.
If you have hundreds of millions of UNWANTED dollars, there is nothing to FEAR for you.
That is the EXACT AMOUNT of money you will spend for recovery and payouts because of PUBLICATION.
You are exposing yourself to huge penalties with lawsuits and government if we both don’t find an agreement.
We have seen it before cases with multi million costs in fines and lawsuits,
not to mention the company reputation and losing clients trust and the medias calling non-stop for answers.————————–
| You have convinced me! |
————————–Then you need to CONTACT US, there is few ways to DO that.
—Secure method—
a) Download a qTOX client: hxxps://tox.chat/download.html
b) Install the qTOX client and register account
c) Add our qTOX ID: 671263E7BC06103C77146A5ABB802A63F53A42B4C4766329A5F04D2660C99A3611635CC36B3A
d) Write us extension of your encrypted files .KTCOur LIVE SUPPORT is ready to ASSIST YOU on this chat.
—————————————-
| What will I get in case of agreement |
—————————————-You WILL GET full DECRYPTION of your machines in the network, DELETION your data from our servers,
RECOMMENDATIONS for securing your network perimeter.And the FULL CONFIDENTIALITY ABOUT INCIDENT.
——————————————–
Followig those instructions is highly inadvisable because cybercriminals may just take your money and then skip assistin you with the decryption of locked files.
.KTC Virus Files
Sadly, encrypted files will remain completely inaccessible until you find a way to restore them. The virus eliminates both the file’s name and authentic extension. For example the file photo.jpg will appear with the following name once encrypted by the KTC ransomware – photo.jpg.KTC.
If you want to prevent being tricked by cybercriminals once again, you should avoid paying the demanded ransom. There is no guarantee provided that they can send you back a working decryption tool for your .KTC files.
Remove KTC Ransomware Virus and Attempt to Restore Files
The so-called KTC is a threat with a highly complex code that disrupts system security in order to encrypt personal files. Hence the infected system could be used in a secure manner again only after the complete removal of all malicious files and objects created by the ransomware. That’s why it is recommendable that all steps presented in the ransomware removal guide below should be completed. Beware that manual ransomware removal is suitable for more experienced computer users. If you don’t feel comfortable with the manual steps navigate to the automatic part of the guide.
Gergana Ivanova
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
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Step 1: Scan for KTC with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall KTC and related malware from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by KTC on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by KTC there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Boot Your PC In Safe Mode to isolate and remove KTC
Step 5: Try to Restore Files Encrypted by KTC.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and KTC aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
KTC-FAQ
What is KTC Ransomware?
KTC is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.
Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.
What Does KTC Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does KTC Infect?
Via several ways.KTC Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.
Another way you may become a victim of KTC is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.
How to Open .KTC files?
You can't without a decryptor. At this point, the .KTC files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your .KTC files successfully, then do not despair, because this virus is still new.
Can I Restore ".KTC" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .KTC files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of KTC Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate KTC ransomware and then remove it without causing any additional harm to your important .KTC files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can KTC Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the KTC Research
The content we publish on SensorsTechForum.com, this KTC how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the KTC ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.