Djvu VirusRansomwareRemoval Guide

Oflg Virus Removal Guide (+Decrypt .oflg files)

Oflg Virus – Details

Oflg is a malicious software functioning as common ransomware. Michael Gillespie, the popular malware researcher, very first found this new name in the DJVU ransomware family.

Oflg was created for the sole function to encrypt all popular file types. Realistically, as quickly as the file encryption is successfully accomplished, the users are unable to get access to them. Oflg virus adds its own “.oflg” to all the encrypted data. For instance, the file “price_list.xls”, once crypted by Oflg, will be titled as “price_list.xls.oflg”. When the file encryption is accomplished, Oflg puts its own special text document (_readme.txt) into all the folders that store the encrypted files.

The alert specified by text file asking for the random os very similar to the alerts given by other ransomware hazards belonging to the DJVU family. The warning basically indicates that the data has been encrypted and the only service to get access to it is to use a special standalone key. Regretfully, this statement is absolutely true.

The method to encrypt the files used by Oflg is not completely investigated. However, there is no doubt that each computer system owner may be provided an unique decryption key, which is definitely distinct. It is incredibly hard to recuperate the data without the proper key in location.

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

message from Oflg virus

One more peculiarity of the Oflg infection is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the complete control by the scoundrels who have actually released the Oflg virus into the web. In order to acquire the key and bring back the crucial information, the users are told to connect with the scams through e-mail or by telegram and to pay the ransom in the amount of $980.

The message also states that individuals ought to get in touch with the Oflg authors within 72 hours upon the minute of the data file encryption. The alert indicates that by doing so individuals will get a 50% discount rate, therefore, the ransom quantity drops down to $490.

No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online crooks will keep their promises, so they might not care at all what the victims feel about the file encryption, even when the amount of the ransom is gotten into their accounts. Thus, paying ransom often does not lead to a successful recovery. So, the users may merely lose their money for absolutely nothing.

Likewise, we prompt you not to contact the frauds as they advise. Do not move cash into their wallets. There are no applications that could crack the Oflg virus or restore the data for free. For that reason, the only right choice is to restore the data from possible backups (if offered).

Virus Summary

NameOflg Ransomware
File Extensionoflg
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 .oflg extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Oflg Removal Tool   GridinSoft Anti-Malware
Oflg Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now loaded with infections comparable to the Oflg virus. For example, this particular risk is generally identical to Brusaf and other ransomware-type infections. These destructive energies have actually been established in order to secure the essential information and reveal the demand for the users to pay the ransom. All these infections utilize the identical algorithm to generate the particular key for effective data decryption.

Unless the Oflg ransomware is still under the advancement procedure or has actually got some concealed bugs, it is not possible to bring back the data manually. Thus, the only working service to prevent the loss of your crucial information is to regularly maintain up-to-date backups of all your crucial data.

Another important piece of advice is to keep the backups on unique storage not connected to your primary device. For example, 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 very risky, considering that the backup might also be encrypted by the Oflg .

Leakages for the Oflg ransomware attack.

Oflg uses numerous paths to infiltrate the susceptible computer systems. It is not certain what particular technique was used in your case, however, the invasion might occur through the following channels:

  • bundling with third-party programs, mainly freeware;
  • spam e-mails from the unknown senders;
  • sites providing complimentary hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Oflg ransomware may camouflage itself as some authentic application, for instance, through the misleading signals requiring setup of some software application update. This is the most typical technique utilized by the frauds to inject the Oflg virus files into the system. By doing this users partially take part in its setup, without plainly comprehending the risk.

Additionally, the scams may send out unsolicited spam e-mail with difficult informs motivating individuals to open dubious accessories or click on some download links, for instance, those encouraging the people to open specific photos, text files, tax files and other information.

No doubt, opening these files or clicking the destructive links might essentially harm the system. Fake Media Player upgrade notifications may lead to the Oflg ransomware infiltration. Likewise, downloading the cracked software may additionally include the ransomware installer. The last however not the least, installation of Oflg might occur through some Trojan horses that might be installed stealthily into the system and without the user’s direct consent or perhaps permission.

Avoiding the Oflg attack.

Naturally, there is no absolute warranty that your computer will be constantly devoid of any malware attacks, nevertheless, we wish to share some helpful tips with you to make it more secure. Make certain to pay extremely attention while searching the web and particularly while downloading cost-free programs. Do not open any suspicious e-mail attachments, particularly if the sender is not understood to you.

Do not forget that certain freeware installer might likewise consist of some other extra apps in the bundle. These additional applications may be really harmful. It is of utmost significance to keep your anti-virus software and your operating system in basic to be always correctly updated.

It is rather sensible that downloading cracked software is illegal, nevertheless, additionally, such unauthorized software application usage might also bring serious damage to your PC. Hence, do not download any broken programs. Plus, the reality that your present anti-virus did not secure the system from the Oflg ransomware is an excellent reason for you to reevaluate your choices and change to another program that can render the securing functions on a far better level.

Below please find the quotation from the Oflg text file:


 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:
 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:

 Reserve e-mail address to contact us:

 Our Telegram account:

Screenshot of files with “.oflg” extension added by the ransomware:”

Oflg Ransomware - encrypt files with .oflg extension

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

1.Download GridinSoft Anti-Malware.

You can get 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 oflg 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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