This article has been created to explain what is the .yum file ransomware and how you can effectively remove it from your computer.
The .yum file ransomware is the type of virus whose main idea is to slither onto your computer, encrypt the files in it and then aims to scare you off into paying ransom in order to get your files to work once again. The ransomware may perform various different types of activities on the computers of victims which may lead to your files no longer being able to be opened. To decrypt the files, the .yum virus may leave a ransom note explaining that you must pay money in the form of BitCoin to recover your data, which is strongly not advisable. If you want to remove .yum files virus from your computer and try to restore your data, we would strongly recommend that you follow the removal steps underneath this article.
Threat Summary
| Name | .yum Files Virus |
| Type | Ransomware, Cryptovirus |
| Short Description | Aims to encrypt files and extort victims into paying cryptocurrency to get their files to work. |
| Symptoms | Files can no longer be opened and the .yum extension Is added to them. |
| Distribution Method | Spam Emails, Email Attachments, Executable files |
| Detection Tool |
See If Your System Has Been Affected by malware
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Malware Removal Tool
|
User Experience | Join Our Forum to Discuss .yum Files Virus. |
| Data Recovery Tool | Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive. |
.yum Files Virus – Update April 2019
A decryption tool for the .yum Files Virus got released by EMSIsoft, that you can download from the link provided here – Emsisoft Decrypter for Planetary Ransomware (.mira, .pluto, .Neptune, .yum). You will need a ransom note from this ransomware in order to use the decrypter.
.yum Files Ransomware – Distribution
Viruses, like the .yum threat are spread in various manners, but the main one which is typical for such threats is e-mail spam. Such spam messages may replicate the virus files of .yum Ransomware as some sort of important attachments to the e-mail. The ransomware virus could also include e-mail text that is very convincing, like pretend that your license for a service has expired or that your online purchase is revoked, for example.
Anther way via which this nasty virus may have entered your computer system is likely done via the virus being spread by being uploaded on websites, where it patiently waits to be downloaded and executed. Such files often turn out to be fake versions of:
- Setups.
- Cracks.
- Patches.
- License activation programs.
- Key generators.
.yum Files Virus – More Information
Once it has already compromised your computer, the .yum file ransomware may begin it’s nasty activities. First, the virus may situate its malicious files on your computer as if they were legitimate files. They may reside in the following Windows directories:
- %AppData%
- %Local%
- %LocalLow%
- %Roaming%
- %Temp%
Once the .yum ransomware has dropped the files on your computer, the virus may then begin to create mutexes in Windows. As soon as this is done, the .yum ransomware may perform a check if it is dropped on a real Windows computer or if it’s running in a virtual operating system. If it is running In a virtual environment, then .yum ransomware may self-delete. Not only this, but the .yum virus may also check if it has already infected your computer in the past and if so, the ransomware may also self-erase its files.
In addition to checks, .yum ransomware may also do a check on your IP address and MAC address as well. Then, the virus may run the following commands in Windows Command Prompt without you even noticing it:
→ sc stop VVS
sc stop wscsvc
sc stop WinDefend
sc stop wuauserv
sc stop BITS
sc stop ERSvc
sc stop WerSvc
cmd.exe /C bcdedit /set {default} recoveryenabled No
cmd.exe /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\System32\cmd.exe” /C vssadmin.exe Delete Shadows /All /Quiet
These commands may effectively delete the shadow copies on the compromised computer and disable Windows Recovery services. The .yum virus may do this to prevent you from recovering your files via these services.
Futhermore, the .yum files virus may also create registry strings with random names in the following Windows sub-keys:
→ 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
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization
HKEY_CURRENT_USER\Control Panel\Desktop\ScreenSaveTimeOut
HKEY_CURRENT_USER\Control Panel\Desktop
.yum Files Virus – Encryption
Once the .yum virus infects your computer, all of it’s activities may be done in a matter of seconds and then, the virus may get to the file encryption part. The encryption is usually done either by copying your original files and then creating their encrypted analogues that cannot be opened and have the .yum extension:
The files for which the .yum ransomware scans for to encrypt are usually the following types:
- Document file types.
- Videos.
- Images.
- Archives.
- Audio files.
- Virtual drive files.
- Presentation files.
- Photoshop files.
- Database files.
Once the files are encrypted, the .yum virus may generate a unique decryption key which may be private and public. The private key may be encrypted with another cipher or deleted. This makes the cyber-criminals the only ones in power to decrypt your files, since they receive all decryption keys. However, paying ransom to those crooks is highly inadvisable, because you cannot fully trust them with your files.
Remove .yum Ransomware and Try Restoring Files
The .yum ransomware should not be underestimated and you should do a fresh backup of your files before actually trying to remove this virus.
The .yum files virus is the type of ransomware whose main idea is to convince users to pay ransom. To remove it safely you should follow the removal steps underneath. If the first two steps do not seem to remove the .yum ransomware permanently from your computer, we strongly suggest using the automatic removal instructions underneath them. They include scanning your PC with an advanced anti-malware software, which is the preferred solution by most cyber-security experts. Such software aims to effectively scan your computer against all forms of malware threats and remove them effectively.
If you want to try and restore files, encrypted by this ransomware on your computer, we strongly suggest that you try the methods in the “Try to restore” step below. They may not restore all your files, but with their aid, you could be able to recover at least some of them.
Ventsislav Krastev
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Step 1: Scan for .yum Files Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .yum Files Virus 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 .yum Files Virus 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 .yum Files Virus 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 .yum Files Virus
Step 5: Try to Restore Files Encrypted by .yum Files Virus.
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 .yum Files Virus 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.
.yum Files Virus-FAQ
What is .yum Files Virus Ransomware?
.yum Files Virus 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 .yum Files Virus 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 .yum Files Virus Infect?
Via several ways..yum Files Virus 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 .yum Files Virus 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 ..yum Files Virus files?
You can't without a decryptor. At this point, the ..yum Files Virus 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 ..yum Files Virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..yum Files Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..yum Files Virus 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 .yum Files Virus 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 .yum Files Virus ransomware and then remove it without causing any additional harm to your important ..yum Files Virus 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 .yum Files Virus 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 .yum Files Virus Research
The content we publish on SensorsTechForum.com, this .yum Files Virus 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 .yum Files Virus 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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