The editor of Dark Reading Tim Wilson recently raised an provocative question in a comment he placed on the blog of Sara Peters, named “CryptoWall More Pervasive, Less Profitable than CryptoLocker”. Mr. Wilson provoked the security experts to share their advice on what the users should do when they face ransomware infections of the type CryptoLocker and CryptoWall. Should the users consider covering the ransom asked for? Are there implications for their data if users contact law enforcement? Can an enterprise set a policy on the malware? Is everything decided on an individual case?
Ransomeware Infections
The ransomware infections are attacks by cyber criminals, that is why the PC users should learn their technological limitations before the infection has reached them. When in enterprises, the security experts should educate themselves and then professionally present information to the users about the ransomware current state. They should also consider certain steps in order to prevent and them remediate the infections. However, people should know that they are on their own when it comes to ransomware problems.
In case the user calls the law enforcement, this will most likely not recover their files. Experts say that if the encrypted files cannot be recovered through a previous back-up or if they are extremely important for the business operation or for the livelihood of the individual, then paying the ransom is the best that the user can do.
The cyber criminals are utilizing file encryption tactics and they are not obliged to decrypt the files once the ransom is paid. The professionals claim that some ransomware does not come with an infrastructure suitable to store and then provide the decryption key to be used on the infected files of the user once he pays the ransom.
ZeroLocker
ZeroLocker is among the ransomware infections that raise the question about the possibility of decryption. When ZeroLocker encrypts the files of the user, the information along with the encryption key are sent through a GET request to a pre-determined server. This later results in a 404 on the server and this could mean that the server does not store the key. In other words, even if the ransom is paid there is no guarantee that the files will be restored. They might be restored and they might be not, thee outcome is uncertain.
CryptoLocker and CryptoWall
CryptoLocker crimeware current strain allow for FireEye/Fox-IT and Decrypt CryptoLocker tools to recover the encrypted files without paying the ransom. These tools however might not be applicable with future strains of CryptoLocker or with decryption of files that are affected by ZeroLocker, CryptoWall or CryptorBit.
If the files of the user could not be recovered from a backup and the user has the new Microsoft Windows Desktop operating system (Microsoft Vista and more recent), then the user might be able to leverage the restore functionality of Microsoft Windows’ Systems in order to restore the files that have been encrypted. The experts suggest for the users to try Shadow Explorer and the Windows Previous Version functionality, which might help them recover their files. A good guide to be used is the Bleeping Computer CryptoLocker guide which is available at the Bleeping Computer website.
Stay Prepared, Be Ready
PC users can take certain steps in order to prepare themselves for the ransomware attacks. The organizations should reinforce policies concerning the testing of data restoration and the data backups frequency. They should also pay attention to the user education. Al that will help the users fight the future cyber criminals’ attacks. This policy should be applied to all devices available including servers and workstations, laptops and IoP systems, as well as devices owned by the employees.
The home users should be very careful too as a great part of the ransomware comes as email attachment or is downloaded after executing an initial email attachment. In case the individual user is skeptical about an email that is not expected ad contains a DOC, PDF, or PPT file, they should be extremely careful and do not open the file. The best policy here is to delete the email. If the email has been important and not containing malware, it can be sent again.
Ransomware can be delivered with different methods including native email attachments, automated bots, downloaders with extra malicious malware, etc. The delivery mechanisms are always changing and thus the organizations have to use a predictive approach in order to protect themselves against ransomware. In order for this to be done, the organizations should use predictive intelligence concept.
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall 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 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 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
Step 5: Try to Restore Files Encrypted by .
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 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.
-FAQ
What is Ransomware?
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 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 Infect?
Via several ways. 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 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 . files?
You can't without a decryptor. At this point, the . 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 . files successfully, then do not despair, because this virus is still new.
Can I Restore "." Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore . 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 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 ransomware and then remove it without causing any additional harm to your important . 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 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 Research
The content we publish on SensorsTechForum.com, this 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 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.
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