Kasp Virus Removal Guide (+Decrypt .kasp files)

Kasp – General Info

Kasp is a destructive software application working as common ransomware. Michael Gillespie, the widely known virus researcher, first discovered this new name in the DJVU ransomware family.

Kasp was developed for the sole purpose to encrypt all popular file types. Rationally, as quickly as the encryption is effectively accomplished, the users are unable to get access to them. Kasp ransomware adds its own “.kasp” to all the encrypted files. For instance, the file “price_list.xls”, as soon as crypted by Kasp, will be entitled as “price_list.xls.kasp”. As soon as the encryption is accomplished, Kasp puts its own unique text document (_readme.txt) into all the folders that store the encrypted files.

The message specified by text file requesting for the random os very similar to the alerts provided by other ransomware risks coming from the DJVU family. The caution basically shows that the data has been encrypted and the only solution to get access to it is to use a distinct standalone key. Regretfully, this statement is definitely real.

The technique to secure the files utilized by Kasp is not totally researched. Nevertheless, there is no doubt that each computer owner may be provided an unique decryption key, which is absolutely special. It is exceptionally tough to recover the information without the proper 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 Kasp ransomware 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 Kasp 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 email or by telegram and to pay the ransom in the quantity of $980.

The message also says that individuals should contact the Kasp authors within 72 hours upon the moment of the data file encryption. The alert indicates that by doing so individuals will get a 50% discount rate, for that reason, the ransom amount falls to $490.

No matter what the quantity of the ransom is, we highly advise that you do not pay the ransom. There is no assurance that these online scoundrels will keep their guarantees, so they may not care at all what the victims feel about the encryption, even when the amount of the ransom is gotten into their accounts. For this reason, paying ransom typically does not lead to an effective healing. So, the users may merely lose their money for nothing.

Likewise, we advise you not to contact the scams as they advise. Do not transfer money into their wallets. There are no applications that might crack the Kasp virus or bring back the information at no cost. For that reason, the only correct choice is to restore the data from possible backups (if available).

Virus Summary

NameKasp Ransomware
File Extensionkasp
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 .kasp extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsBoop, Vari, Oonn
Kasp Removal Tool   GridinSoft Anti-Malware
Kasp Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Web is now full of infections similar to the Kasp virus. For example, this particular threat is essentially identical to Brusaf and other ransomware-type infections. These harmful utilities have been developed in order to secure the crucial data and reveal the need for the users to pay the ransom. All these infections use the identical algorithm to produce the specific key for effective data decryption.

Unless the Kasp ransomware is still under the development procedure or has got some concealed bugs, it is not possible to restore the data by hand. Therefore, the only working solution to avoid the loss of your essential information is to frequently preserve updated backups of all your vital documents.

Another important piece of suggestions is to store the backups on unique storage not linked to your main device. For example, you might keep 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 dangerous, considering that the backup may likewise be secured by the Kasp infection.

Leakages for the Kasp ransomware attack.

Kasp uses numerous paths to penetrate the vulnerable computers. It is not certain what specific method was utilized in your case, however, the intrusion might take place by means of the following channels:

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

There are times when the Kasp virus might disguise itself as some authentic application, for example, through the misleading alerts requiring installation of some software upgrade. This is the most typical trick utilized by the frauds to inject the Kasp ransomware files into the system. By doing this users partially take part in its installation, without plainly understanding the threat.

Additionally, the frauds might send out unsolicited spam email with challenging alerts motivating the people to open dubious accessories or click on some download links, for example, those encouraging individuals to open certain images, text files, tax documents and other info.

No doubt, opening these files or clicking the harmful links might basically damage the system. Fake Acrobat Reader update notices may cause the Kasp ransomware infiltration. Similarly, downloading the broken software application might additionally include the ransomware installer. The last however not the least, setup of Kasp may happen through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission or even authorization.

Preventing the Kasp virus injection.

Naturally, there is no outright guarantee that your computer system will be constantly devoid of any malware attacks, nevertheless, we would like to share some helpful pointers with you to make it much safer. Make sure to pay extremely very close attention while searching the web and especially while getting cost-free programs. Do not open any suspicious e-mail accessories, particularly if the sender is not known to you.

Do not forget that certain freeware installer may also consist of some other additional apps in the bundle. These extra applications may be very harmful. It is of utmost importance to keep your anti-virus software and your operating system in basic to be constantly effectively updated.

It is quite logical that downloading pirated apps is unlawful, however, furthermore, such unauthorized software application use may likewise bring serious damage to your system. For this reason, do not download any split programs. Plus, the fact that your existing anti-virus did not safeguard the system from the Kasp ransomware is a great reason for you to reconsider your choices and change to another program that can render the securing functions on a better level.

Below please find the quotation from the Kasp 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 “.kasp” extension added by the virus:”

Kasp Ransomware - encrypt files with .kasp extension

Use GridinSoft Anti-Malware to remove Kasp 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 kasp 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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About 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. How to use emsisoft decryptor for restore your files read here: https://howtofix.guide/kasp-virus-file/

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