With the release of yet another version of the notorious Cerber ransomware, malware authors have proven that so far they cannot be stopped. The version of the malware (5.0.1) is detected in parallel with Locky’s latest update using the .zzzzz file extension, suggesting competition between the two ransomware makers. Ransomware attacks have continued to increase and users who have had their files encrypted by such viruses are requested to pay a hefty ransom fee in order to get their files back. Anyone who has been infected by the ransomware should not pay the ransom amount and are advised to immediately focus on reading this article to learn more about this particular ransomware, remove it and restore the files.
Threat Summary
| Name |
Cerber |
| Type | Ransomware |
| Short Description | The malware encrypts users files using a strong encryption algorithm, making direct decryption possible only via a unique decryption key available to the cyber-criminals. |
| Symptoms | The user may witness ransom notes and “instructions” linking to a web page and a decryptor. Changed file names and the file-extension .adk has been used. |
| Distribution Method | Via an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner. |
| Detection Tool |
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| User Experience | Join our forum to Discuss Cerber. |
| 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. |
Cerber 5.0.1 Ransomware – More Information
What is characteristic for the 5.0.1 version of the Cerber virus is that it is not very different in comparison to other updates of Cerber. In fact, the malware may be distributed via the very same RIG-V exploit kit, typical for the 5th version of Cerber.
The new modifications of this RIG EK include changed web links and highly obfuscated infection code in them that allows to cause a successful infection which is unnoticed by any anti-virus software. The new exploit kit which is characterized by the letter V, and outlined by researchers as a “VIP” type of exploit kit is believed to have RC4 encryption for payload obfuscation.
This means that Cerber ransomware may use .hta, .html or .htm files with which it can cause an infection via a spam message sent out to the users, just like it’s older versions did.
But another method of the infection being caused is also via malicious web links uploaded online and sent out as a message on either social media or other places that favor third-party web links.
Not only this, but Cerber ransomware also has the ability to cause an infection via thumb drives and other methods if executed hands on. This is more common when an attack versus an organization is conducted. It is also likely due to the fact that the Cerber 5.0.1 variants I also more focused on encrypting databases besides widely used types of files.
Cerber 5.0.1 – Encryption and Notification
After an infection the 5.0.1 version of Cerber ransomware may stop any actively running processes on the user that are related to:
- MySQL databases.
- Oracle databases.
- Microsoft Access databases.
Not only this but Cerber 5.0.1 may also delete any shadow volume copies or other forms of backup on the compromised computer. This is technically achievable by executing the vssadmin command, for example:
After this modification n has been completed, the Cerber ransomware begins the encryption process. It may conduct it on system boot while antivirus software has not yet started or it may immediately perform the encryption upon execution. Either way, the following file types may be affected by Cerber:
→ “PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG” Source:fileinfo.com
To encrypt the files on the compromised computer, Cerber ransomware uses advanced encryption algorithms. It uses the combination of Advanced Encryption Standard (AES) and Rivest-Shamir Adleman (RSA). This results in the producing of a unique decryption key corresponding specifically for the particular infection and this key is sent to the cyber-criminals’ command and control servers.
After this has been performed, Cerber 5.0.1 performs it’s standard activity – changes the filenames and the file extension of the encrypted files to completely random:
After performing this, Cerber 5.0.1 changes the wallpaper with URL’s linking to it’s standard Cerber payment web page:
Cerber 5.0.1 – Conclusion, Removal and File Decryption
As a bottom line, malware researchers strongly advise users not to pay any form of ransom to the cyber-criminals primarily due to the fact that collaborating with them may not get your files back and you support their criminal activities to further update Cerber. In fact, the variant 5.0.1 Is likely not the last Cerber variant we will see, because there will be many more after it, mainly because of the large affiliate network, built up by Cerber’s creators. This rapid changing of versions of the two big ransomware families, Locky being the other one is a headache for malware researchers and many feel concerned that this “trolling” may continue.
Advises if you are infected are to remove on sight and wait for a decryptor and in the meantime try the alternative methods posted below to restore your files.
To remove Cerber 5.0.1, it is advisable to follow the removal instructions below. They are designed for maximum effectiveness. In case you lack the experience in manually removing malware, we also recommend using an advanced anti-malware software to perform the removal automatically.
Video Removal Cerber 5.0 Virus
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 Cerber with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall Cerber 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 Cerber 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 Cerber 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 Cerber
Step 5: Try to Restore Files Encrypted by Cerber.
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 Cerber 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.
Cerber-FAQ
What is Cerber Ransomware?
Cerber 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 Cerber 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 Cerber Infect?
Via several ways.Cerber 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 Cerber 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 .Cerber files?
You can't without a decryptor. At this point, the .Cerber 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 .Cerber files successfully, then do not despair, because this virus is still new.
Can I Restore ".Cerber" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Cerber 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 Cerber 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 Cerber ransomware and then remove it without causing any additional harm to your important .Cerber 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 Cerber 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 Cerber Research
The content we publish on SensorsTechForum.com, this Cerber 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 Cerber 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.
Dear all,
all my documents are encrypted by cerber ransomware 5.0.1.
Files changed to .9775. Does anybody know if there is a file recovery or
decryption program for this?
For now there is no decryption program available. The files that become encrypted are with a different extension for everybody. You can try Data Recovery Programs to see if you can restore some files. Otherwise, just save your data somewhere and wait for a decryptor.