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  • Active
  • Severity: High
  • Ransomware
  • Windows
  • Verified · Jun 2021

How to remove Omfl ransomware

A step-by-step removal guide for affected devices. Follow the verified procedure below — most readers complete it in under 10 minutes.

Alice Woods · Likes to teach users about virus prevention

Omfl virus is a malicious program made to lock all personal files on a Windows computer

Omfl ransomware

Omfl ransomware is a cryptovirus designed to encrypt all personal data on the computer and then demand ransom for its return. Once inside the system, it locks all personal pictures, videos, documents, archives, and other files by using the RSA encryption algorithm, which also appends a .omfl extension in the process. Victims can no longer access these files, and they also lose the regular icons, replacing them with blanks.

As soon as the encryption procedure is complete, the virus drops a ransom note _readme.txt – instructions from cybercriminals. It explains to victims what happened to their files and claims that the only method to return them is by paying a ransom for a decryption tool. For negotiation purposes, crooks also provide emails – helpmanager@mail.ch, restoremanager@airmail.cc.

This virus belongs to a ransomware family known as Djvu. This particular malware is notorious within the cybersecurity field, and researchers have been investigating it since its release in 2017. So far, threat actors released at least 270 variants, the latest ones being Vpsh, Nobu, Booa. Unfortunately, the strain can only sometimes be decrypted with the help of Emsisoft's decryption tool – it only possible for victims whose data was locked with an online ID. Otherwise, decryption possibilities are limited, although always worth trying – we provide them below.

Name Omfl ransomware
Type Ransomware, crypto-virus
Malware family Djvu/Stop ransomware
Extension Files appended with .omfl extension
Ransom note  _readme.txt
Distribution File-locking malware mainly spreads around with the help of malicious files or links that redirect you to dangerous content online
Contact  helpmanager@mail.ch, restoremanager@airmail.cc.
File recovery  If no backups are available, recovering data is almost impossible. Nonetheless, we suggest you try the alternative methods: media file repair tool; Emsisofts't decryption option
Malware removal  Perform a full system scan with powerful security software and remove malware
System fix Malware can seriously tamper with Windows systems, causing errors, crashes, lag, other issues. To repair the OS we recommend scanning it with the FortectIntego tool

While it is true that the encrypted files require a unique decryption key to unlock them, experts[1] recommend not paying the ransom, as cybercriminals might not keep their promises, resulting in financial losses. The ransom note contains various claims that should encourage people to pay up, but that should be ignored.

This malware only attacks Windows computers mostly by using software cracks downloaded from insecure sources, such as torrent sites. Once inside, it uses a powerful encryption algorithm[2] to lock up all documents, archives, videos, music, and other files, adding .omfl extension to them. After that, ransomware delivers a ransom note text file, which includes instructions on how to recover the encrypted data.

According to virus authors, victims need to contact them via email and provide their personal ID. Once that is done, users should receive further instructions to proceed with the payment, provided in Bitcoin cryptocurrency. Nonetheless, we do not recommend contacting the attackers because they might not deliver the required decryption tool. Removing the virus and going for alternate methods is more reliable.

Omfl ransomware virus

Threats like this are known for accessing user machines without permission and encrypting all files on them. This way, cybercriminals behind the attack can ask for a ransom payment in return for a unique key. You should remove the ransomware once you receive the message and make sure to clear the system.

The ransom note that ransomware creators deliver to victims:

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-EtT4dX8q3X
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:
helpmanager@mail.ch

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

Your personal ID:

You should focus on the proper ransomware elimination process so the system is cleaned and the virus terminated fully. It is possible with SpyHunterCombo Cleaner or MalwarebytesMalwarebytes or other anti-malware tools. This is how the detection[3] of the malicious file shows where the infection is. Also, to remediate the system and ensure that it works well (some malware might corrupt Windows system files, making it crash, deliver errors, lag, etc.).

Unfortunately, the this virus triggers other malicious processes within the computer, for example:

  • Changes Windows registry database
  • Deletes Shadow Volume Copies to prevent and easy file recovery
  • Inserts malicious modules into browsers to gather sensitive data
  • Alters Windows “hosts” file to prevent users from accessing security websites, such as 2-spyware, etc.

Due to this, malware elimination is one of the main priorities, although this should not be done until all the most important encrypted files are copied to another medium. Keep in mind that there is no malicious code stored within the encrypted files, so copying over is safe.

Omfl cryptovirus

.Omfl virus files: decryption possibilities

The worst thing for the victim is to repair encrypted files and other damage that the threat creates. You need to remember that decryption is unlikely to be possible due to the newest changes criminals made to the coding.

The file virus is using an online ID creation method that makes this ransomware more dangerous and those files that get locked undecryptable. The key needed for the decryption of these files is created uniquely for each victim and the affected device, so researchers cannot help.

Virus decryption is only possible when the offline ID forming method is used, or the researcher releases a tool working for any encoded data. The best option is to remove the threat and rely on your file backups that can be helpful with your altered files. You can replace locked data using save copies. It is also possible to store some of the encoded files and other malware-related data on the external device, so you can wait for the official decryption tool release.

Use sophisticated antivirus to get rid of ransomware

The worst thing about this virus infection is its ability to lock all personal data on the infected device. However, without eliminating the virus, you cannot restore those files. However, if you have no backups to restore your data from, you should first copy it over to an external drive or another storage device in case the ultimate solution is provided by security researchers in the future.

Only after you backed your data, you can proceed with the ransomware removal with tools – such as SpyHunterCombo Cleaner or MalwarebytesMalwarebytes – and then attempt to recover your data using alternative methods, such as Windows Previous Versions or third-party recovery tools. Emsisoft's decryptor might also help some victims, although it is unlikely to happen right away since victims with the same key need to contact security experts and share it with them so they could add it to the database of the tool. Thus, if the decryptor tells you that your files were encrypted with an offline ID, you might have a chance to restore them all in the future.

When you remove ransomware, other malware, and all the malicious modules, you should also employ FortectIntego to repair your computer system files that might have been damaged during the infection process of the virus. This program can fix issues created by the malware-related processes.

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