Djvu VirusRansomwareRemoval Guide

Omfl Virus Removal Guide (+Decrypt .omfl files)

Omfl – Ransomware

Omfl is a harmful software application functioning as common ransomware. Michael Gillespie, the well-known virus researcher, first discovered this new name in the DJVU ransomware family.

Omfl was developed for the sole function to encrypt all popular file types. Rationally, as quickly as the file encryption is successfully accomplished, the users are not able to get access to them. Omfl ransomware includes its own “.omfl” to all the encrypted files. For instance, the file “price_list.xls”, when modified by Omfl, will be titled as “price_list.xls.omfl”. When the file encryption is achieved, Omfl puts its own special text document (_readme.txt) into all the folders that keep the encrypted files.

The alert specified by document requesting the random os really similar to the alerts provided by other ransomware hazards coming from the DJVU family. The caution basically indicates that the information has been encrypted and the only option to get access to it is to use a special standalone key. Regretfully, this statement is definitely true.

The method to secure the files utilized by Omfl is not totally looked into. Nevertheless, there is no doubt that each computer system owner may be provided a special decryption key, which is absolutely unique. It is very tough to recover the information without the appropriate type in location.

“Don’t worry, you can return all your files!”, from text file message:

Don't worry, you can return all your files! virus

One more peculiarity of the Omfl infection is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the complete control by the crooks who have actually released the Omfl ransomware into the internet. In order to get the key and bring back the essential information, the users are informed to connect with the frauds through e-mail or by telegram and to pay the ransom in the quantity of $980.

The message likewise says that individuals should get in touch with the Omfl authors within 72 hours upon the moment of the information file encryption. The alert indicates that by doing so individuals will acquire a 50% discount, therefore, the ransom quantity falls to $490.

No matter what the amount of the ransom is, we highly encourage that you do not pay the ransom. There is no warranty that these online crooks will keep their guarantees, so they may not care at all what the victims feel about the encryption, even when the quantity of the ransom is received into their accounts. For this reason, paying ransom typically does not result in an effective healing. So, the users might just lose their money for absolutely nothing.

Likewise, we urge you not to call the scams as they instruct. Do not transfer cash into their wallets. There are no applications that could break the Omfl ransomware or bring back the data at no charge. Therefore, the only appropriate decision is to bring back the information from possible backups (if available).

Virus Summary

NameOmfl Ransomware
File Extensionomfl
TypeRansomware
FamilyDJVU
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .omfl extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsBooa, Igdm, Nobu
Omfl Removal Tool   GridinSoft Anti-Malware
Omfl Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Internet is now loaded with infections similar to the Omfl virus. For example, this specific threat is generally similar to Brusaf and other ransomware-type infections. These damaging utilities have actually been developed in order to secure the crucial data and express the need for the users to pay the ransom. All these infections utilize the similar algorithm to generate the particular key for effective files decryption.

Unless the Omfl ransomware is still under the advancement procedure or has got some concealed bugs, it is not possible to bring back the data by hand. Hence, the only working option to prevent the loss of your essential information is to frequently maintain current backups of all your crucial files.

Another crucial piece of advice is to store the backups on unique storage not linked to your main device. For instance, you may keep it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your regular drive is extremely risky, given that the backup might likewise be encrypted by the Omfl infection.

Leakages for the Omfl ransomware attack.

Omfl uses many courses to penetrate the susceptible computer systems. It is not certain what particular technique was utilized in your case, however, the intrusion may take place via the following channels:

  • bundling with third-party programs, mainly free apps;
  • spam emails from the unidentified senders;
  • sites offering free hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Omfl may camouflage itself as some authentic application, for instance, through the misleading signals demanding installation of some software update. This is the most typical technique used by the scams to inject the Omfl virus files into the system. By doing this users partially participate in its setup, without clearly comprehending the threat.

Additionally, the frauds may send unsolicited spam e-mail with challenging notifies motivating the people to open suspicious attachments or click on some download links, for instance, those motivating the people to open specific images, text files, tax documents and other information.

No doubt, opening these files or clicking on the malicious links might basically damage the system. Fake Adobe Flash Player update alerts may lead to the Omfl ransomware seepage. Similarly, downloading the split software may in addition include the ransomware installer. The last but not the least, installation of Omfl may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct authorization or perhaps authorization.

Avoiding the Omfl injection.

Of course, there is no absolute assurance that your computer system will be always without any malware attacks, nevertheless, we wish to share some beneficial suggestions with you to make it more secure. Ensure to pay very very close attention while searching the web and particularly while downloading cost-free programs. Do not open any suspicious email attachments, specifically if the sender is not known to you.

Do not forget that specific freeware installer may also include some other extra apps in the bundle. These extra applications might be very destructive. It is of utmost importance to keep your anti-virus software application and your os in basic to be always effectively upgraded.

It is quite rational that downloading pirated software is illegal, nevertheless, in addition, such unapproved apps use may likewise bring serious damage to your PC. For this reason, do not download any split programs. Plus, the truth that your present anti-virus did not protect the system from the Omfl ransomware is a good reason for you to reevaluate your choices and switch to another program that can render the protecting functions on a much better level.

Below please find the quotation from the Omfl text file:

ATTENTION!
 
 Don't worry, you can return all your files!
 All your files like photos, 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-2P5WrE5b9f
 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:
 restorealldata@firemail.cc
  
 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch 

 Our Telegram account:
 @datarestore

Screenshot of files with “.omfl” extension added by the virus:”

Omfl Ransomware - encrypt files with .omfl extension

Use GridinSoft Anti-Malware to remove Omfl ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

Use Emsisoft Decryptor for restore omfl files

You can get Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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One Comment

  1. he sido infectado con este virusy he perdido 500gb mi pc porque todos los archivos aparecen como .omfl y por lo que veo en tu articulo y probado todo lo que comentas no vale de nada

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