How to remove Qoqa ransomware

Qoqa ransomware is a type of malware that tries to extort money from you

Qoqa is a malicious computer program that encrypts all personal files, such as photos, videos, databases, documents, and more, rendering them inaccessible. The virus employs the RSA encryption algorithm, which makes the files unusable until they are decrypted using a key that is kept on the cybercriminals' servers.

The virus appends the .qoqa extension to the personal files, and their usual file icons disappear, making it impossible for users to open them. A Windows error message pops up, indicating that the file is unrecognizable. The cybercriminals who launched the attack take advantage of the situation and demand payment of $490/$980 in bitcoin to restore access to the encrypted data. They also provide email addresses, support@freshmail.top and datarestorehelp@airmail.cc, for communication.

The Djvu malware family includes over 600 variants, such as Iowd, Vvoo, Mztu, and many others. In this article, we'll talk about how to cope with the hazardous Qoqa infection and provide guidance on how to recover encrypted files without paying the cybercriminals.

Such threats are known for spreading via software cracks and pirating platforms. You should avoid any content and downloads from suspicious sources. More serious threats like Vidar or Raccoon that steal data from users can spread the same way and silently. Later on, ransomware and other threats get to access infected machines quickly after the initial injections.

The ransom note example and what the attackers want

After a device is infected with ransomware, a ransom note appears on the user's screen. The note provides details on how to pay a specified ransom amount in exchange for the decryption of data encrypted by malicious software. The ransom note displayed by the virus demands payment in the form of cryptocurrency, such as Bitcoin, and includes instructions on how to make the payment. Here are the contents of the message:

ATTENTION!

Don't worry, you can return all your files!
All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
https://we.tl/t-iftnY5iBx9
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
Please note that you'll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don't get answer more than 6 hours.

To get this software you need write on our e-mail:
support@freshmail.top

Reserve e-mail address to contact us:
datarestorehelp@airmail.cc

Your personal ID:

We cannot stress enough that it is strongly advised not to pay the ransom demanded by ransomware attackers. There is no guarantee that they will follow through with their promises or that the decryptor they provide will work as intended. By paying the ransom, victims indirectly support criminal activity and encourage the attackers to continue spreading their malicious software to more unsuspecting users. This, in turn, fuels the development of more advanced forms of ransomware and increases the risk of further attacks.

How malware spreads

Malicious hackers may use various methods to distribute the Qoqa virus, although it is commonly spread through cracked software installers from illegal websites. Regardless of the distribution method, victims often unknowingly download the virus and remain unaware until they observe the initial symptoms of infection.

To protect yourself from being infected with ransomware like Qoqa, it is important to take certain precautions. First, avoid downloading and installing software from untrusted or illegal websites, as these are common sources of malware. Stick to reputable sources for software downloads and be wary of any offers for free software or services that seem too good to be true.

Secondly, make sure to keep your operating system and other software up to date with the latest security patches and updates. This helps to close any known security vulnerabilities that could be exploited by cybercriminals.

Lastly, it is essential to regularly back up your important files to an external hard drive or cloud storage service. This way, even if your system is infected with ransomware, you can still access your files and restore them after removing the virus.

A lot to unpack: do not panic

Many people infected with Qoqa ransomware might not truly realize what has happened, as many victims do not expect an attack to happen. In fact, many might not even know what ransomware is. Indeed, a ransomware attack could end in total file loss, and it can be devastating for many.

If you have been infected with ransomware, it is crucial not to panic, despite the harsh implications of the fact. The attackers behind ransomware rely on the victim's fear and desperation to force them to pay the ransom. However, paying the ransom does not guarantee the safe return of your data, and it may encourage the attackers to continue their illegal activities. Instead, it is essential to remain calm and assess the situation.

How to deal with ransomware

When confronted with a ransomware attack, the initial response should be to remove the malware from the computer. Since the malware may communicate with the attackers via the internet, the first step is to disable the WiFi or Ethernet connection to stop further data exchange. After that, antivirus software such as MalwarebytesMalwarebytes or SpyHunterCombo Cleaner can be downloaded and used to clean the infected computer thoroughly.

It's worth noting that in some cases, malware can prevent the operation of security software to ensure that it continues to encrypt files or run other malicious activities in the background. In such cases, accessing Safe Mode may be necessary to remove the ransomware from the system.

Windows 7 / Vista / XP

1. Click Start > Shutdown > Restart > OK.
2. When your computer becomes active, start pressing the F8 button (if that does not work, try F2, F12, Del, etc. – it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
3. Select Safe Mode with Networking from the list.

Windows 10 / Windows 8

1. Right-click on the Start button and select Settings.
   
2. Scroll down to pick Update & Security.
3. On the left side of the window, pick Recovery.
4. Now scroll down to find the Advanced Startup section.
5. Click Restart now.
6. Select Troubleshoot.
7. Go to Advanced options.
8. Select Startup Settings.
9. Click Restart.
10. Press 5 or click 5) Enable Safe Mode with Networking.

Data recovery options

It is important to understand that security software is not capable of restoring personal files that have been encrypted by ransomware. Its primary function is to detect and remove malicious programs and protect against future threats. Recovering encrypted data requires a completely different approach that cannot be done by anti-malware software alone. Nonetheless, installing security software on your device is crucial for detecting potential issues and safeguarding your system against threats.

Once ransomware infects a device, it generates a unique ID and encryption key that is sent to the attackers. The attackers will then demand payment in exchange for the decryption key needed to access the encrypted data. However, paying the ransom is not recommended as it supports the attackers' malicious activities and does not guarantee that the decryption key will work.

Instead of paying the ransom, alternative solutions are available such as using decryption tools. Before attempting to restore encrypted data, it is essential to create a backup copy, as the recovery process may cause corruption. One such decryption tool is Emsisoft, which may or may not successfully restore your files.

• Download the app from the official Emsisoft website.
• After pressing Download button, a small pop-up at the bottom, titled decrypt_STOPDjvu.exe should show up – click it.
  
• If User Account Control (UAC) message shows up, press Yes.
• Agree to License Terms by pressing Yes.
  
  
• After Disclaimer shows up, press OK.
• The tool should automatically populate the affected folders, although you can also do it by pressing Add folder at the bottom.
  
• Press Decrypt.
  
  

From here, there are three available outcomes:

1. “Decrypted!” will be shown under files that were decrypted successfully – they are now usable again.
2. “Error: Unable to decrypt file with ID:” means that the keys for this version of the virus have not yet been retrieved, so you should try later.
3. “This ID appears to be an online ID, decryption is impossible” – you are unable to decrypt files with this tool.

If this method does not work, try other solutions listed below. Don't forget to remove the “hosts” file from your system as well, as you won't be able to access certain websites on the web otherwise.