Djvu VirusRansomwareRemoval Guide

Gosw Virus Removal Guide (+Decrypt .gosw files)

Gosw Virus – Details

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

Gosw was developed for the sole purpose to encrypt all popular file types. Logically, as soon as the file encryption is effectively achieved, the users are not able to get access to them. Gosw virus adds its own “.gosw” to all the encrypted data. For instance, the file “price_list.xls”, as soon as crypted by Gosw, will be titled as “price_list.xls.gosw”. Once the file encryption is achieved, Gosw puts its own special text file (_readme.txt) into all the folders that store the encrypted files.

The alert stated by _readme.txt requesting the random os really comparable to the alerts provided by other ransomware hazards coming from the DJVU family. The caution generally shows that the information 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 approach to encrypt the files utilized by Gosw is not entirely investigated. Nevertheless, there is no doubt that each computer owner might be provided a special decryption key, which is definitely distinct. It is exceptionally difficult to recuperate the data without the suitable type in place.

“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 Gosw 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 criminals who have actually released the Gosw ransomware into the web. In order to acquire the key and restore the essential data, the users are told to get in touch with the scams by means of email or by telegram and to pay the ransom in the quantity of $980.

The message likewise states that the people ought to contact the Gosw authors within 72 hours upon the minute of the data encryption. The alert indicates that by doing so the people will get a 50% discount, for that reason, the ransom quantity falls to $490.

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

Likewise, we urge you not to call the frauds as they instruct. Do not move loan into their wallets. There are no applications that might break the Gosw virus or restore the information for free. Therefore, the only appropriate decision is to bring back the information from possible backups (if offered).

Virus Summary

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

Do not forget that the Web is now full of infections similar to the Gosw ransomware. For instance, this specific danger is generally identical to Brusaf and other ransomware-type infections. These damaging energies have been established in order to encrypt the essential data and express the demand for the users to pay the ransom. All these infections utilize the similar algorithm to generate the particular key for successful data decryption.

Unless the Gosw ransomware is still under the development procedure or has actually got some hidden bugs, it is not possible to bring back the information by hand. Therefore, the only working option to prevent the loss of your essential information is to frequently maintain updated backups of all your crucial files.

Another crucial piece of suggestions is to save the backups on unique storage not linked to your main PC. For instance, you may store it on the USB Flash Drive, or some external drive, or by using the cloud data storage services. Keeping the backups on your system drive is really dangerous, given that the backup may also be encrypted by the Gosw virus.

Leaks for the Gosw ransomware attack.

Gosw utilizes lots of paths to infiltrate the vulnerable computer systems. It is not specific what specific approach was utilized in your case, however, the invasion may occur by means of the following channels:

  • bundling with third-party programs, primarily free apps;
  • spam emails from the unknown senders;
  • sites providing free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Gosw virus may camouflage itself as some real application, for instance, through the misleading alerts requiring setup of some software application upgrade. This is the most typical technique utilized by the frauds to inject the Gosw infection files into the system. By doing this users partly take part in its setup, without clearly comprehending the danger.

Additionally, the scams may send unsolicited spam email with difficult alerts motivating individuals to open suspicious accessories or click some download links, for example, those encouraging the people to open certain pictures, text files, tax documents and other info.

No doubt, opening these files or clicking on the malicious links might essentially harm the system. Fake Media Player upgrade alerts may result in the Gosw ransomware seepage. Similarly, downloading the cracked software application may in addition include the ransomware installer. The last however not the least, setup of Gosw might occur through some Trojan horses that may be set up stealthily into the system and without the user’s direct approval or perhaps consent.

Preventing the Gosw ransom virus injection.

Obviously, there is no absolute assurance that your computer will be constantly devoid of any malware attacks, however, we wish to share some beneficial tips with you to make it safer. Make sure to pay really close attention while searching the web and specifically while downloading cost-free programs. Do not open any dubious email attachments, particularly if the sender is not known to you.

Do not forget that certain freeware installer might also contain some other extra apps in the package. These additional applications might be extremely damaging. It is of utmost value to keep your anti-virus software application and your operating system in basic to be constantly appropriately updated.

It is quite rational that downloading cracked apps is illegal, nevertheless, in addition, such unauthorized software application usage may also bring major damage to your PC. For this reason, do not download any broken programs. Plus, the fact that your existing anti-virus did not secure the system from the Gosw ransomware is a great reason for you to reconsider your options and change to another program that can render the securing functions on a far better level.

Below please find the quotation from the Gosw 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 “.gosw” extension added by the virus:”

Gosw Ransomware - encrypt files with .gosw extension

Use GridinSoft Anti-Malware to remove Gosw 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 gosw files

You can download 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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