Djvu VirusRansomwareRemoval Guide

Iwan Virus Removal Guide (+Decrypt .iwan files)

Iwan – Ransomware

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

Iwan was created for the sole function to encrypt all popular file types. Realistically, as quickly as the encryption is successfully achieved, the users are unable to get access to them. Iwan ransomware adds its own “.iwan” to all the encrypted data. For instance, the file “price_list.xls”, as soon as modified by Iwan, will be titled as “price_list.xls.iwan”. When the encryption is achieved, Iwan puts its own unique text file (_readme.txt) into all the folders that store the encrypted files.

The alert mentioned by _readme.txt requesting for the random os really similar to the notices provided by other ransomware dangers coming from the DJVU family. The warning generally shows that the data has been encrypted and the only service to get access to it is to use an unique standalone key. Regretfully, this statement is absolutely true.

The method to secure the files utilized by Iwan is not completely looked into. However, there is no doubt that each computer system owner might be provided an unique decryption key, which is definitely distinct. It is very hard to recuperate the information without the suitable key in location.

“Don’t worry, you can return all your files!”, from _readme.txt message:

message from Iwan virus

One more peculiarity of the Iwan virus is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the total control by the scoundrels who have actually launched the Iwan ransomware into the world wide web. In order to acquire the key and bring back the important data, the users are informed to connect with the frauds by means of e-mail or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals must call the Iwan authors within 72 hours upon the minute of the data encryption. The alert indicates that by doing so the people will obtain a 50% discount rate, therefore, the ransom amount falls to $490.

No matter what the quantity of the ransom is, we strongly recommend that you do not pay the ransom. There is no warranty that these online crooks will keep their promises, so they might not care at all what the victims feel about the encryption, even when the amount of the ransom is gotten into their accounts. Hence, paying ransom typically does not lead to an effective recovery. So, the users may simply lose their money for nothing.

Likewise, we prompt you not to call the frauds as they instruct. Do not move cash into their wallets. There are no applications that could crack the Iwan ransomware or restore the information at no cost. For that reason, the only proper decision is to restore the information from possible backups (if offered).

Virus Summary

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

Do not forget that the Web is now filled with infections comparable to the Iwan virus. For example, this particular hazard is essentially identical to Brusaf and other ransomware-type infections. These damaging utilities have actually been established in order to secure the essential data and reveal the demand for the users to pay the ransom. All these infections utilize the identical algorithm to create the particular key for successful files decryption.

Unless the Iwan ransomware is still under the advancement procedure or has actually got some concealed bugs, it is not possible to restore the information by hand. Thus, the only working option to prevent the loss of your crucial information is to routinely keep current backups of all your important files.

Another essential piece of advice is to store the backups on unique storage not linked to your main computer. For instance, you may store it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really risky, because the backup might likewise be secured by the Iwan .

Leaks for the Iwan ransomware attack.

Iwan utilizes many paths to penetrate the vulnerable computer systems. It is not certain what particular approach was utilized in your case, however, the invasion may happen by means of the following channels:

  • bundling with third-party programs, mainly freeware;
  • spam emails from the unidentified senders;
  • websites supplying free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Iwan may disguise itself as some real application, for instance, through the misleading notifies requiring installation of some software application update. This is the most common technique used by the frauds to inject the Iwan infection files into the system. By doing this users partly participate in its setup, without plainly comprehending the risk.

Additionally, the scams might send unsolicited spam e-mail with challenging signals encouraging the people to open suspicious attachments or click some download links, for example, those encouraging individuals to open certain pictures, text files, tax documents and other info.

No doubt, opening these files or clicking on the destructive links may essentially harm the system. Fake Adobe Flash Player update notices may lead to the Iwan ransomware seepage. Likewise, downloading the split software application may additionally include the ransomware installer. The last however not the least, installation of Iwan might take place through some Trojan horses that may be installed stealthily into the system and without the user’s direct approval and even permission.

Preventing the Iwan virus attack.

Of course, there is no absolute guarantee that your computer system will be constantly devoid of any malware attacks, nevertheless, we wish to share some useful tips with you to make it much safer. Ensure to pay very attention while searching the web and specifically while downloading cost-free programs. Do not open any suspicious email accessories, particularly if the sender is not understood to you.

Do not forget that specific freeware installer may likewise consist of some other additional apps in the bundle. These extra applications might be very harmful. It is of utmost importance to keep your anti-virus software and your os in general to be always properly updated.

It is rather sensible that downloading pirated apps is unlawful, nevertheless, in addition, such unapproved software application use may likewise bring major damage to your system. Thus, do not download any cracked programs. Plus, the reality that your present anti-virus did not safeguard the system from the Iwan ransomware is a great reason for you to reconsider your options and switch to another program that can render the safeguarding functions on a better level.

Below please find the quotation from the Iwan 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 “.iwan” extension added by the virus:”

Iwan Ransomware - encrypt files with .iwan extension

Use GridinSoft Anti-Malware to remove Iwan 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 iwan 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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