Jasa – Ransomware
Jasa is a malicious software functioning as typical ransomware. Michael Gillespie, the popular malware researcher, first found this new name in the DJVU ransomware family.
Jasa 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 unable to get access to them. Jasa virus includes its own “.jasa” to all the encrypted data. For instance, the file “price_list.xls”, as soon as modified by Jasa, will be titled as “price_list.xls.jasa”. Once the file encryption is accomplished, Jasa puts its own distinct text document (_readme.txt) into all the folders that keep the encrypted files.
The message stated by document requesting the random os really similar to the notices provided by other ransomware hazards coming from the DJVU family. The caution basically shows that the files have 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 approach to secure the files utilized by Jasa is not entirely researched. However, there is no doubt that each computer system owner may be provided a special decryption key, which is definitely special. It is incredibly tough to recuperate the data without the suitable type in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Jasa virus is that the users are unable 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 introduced the Jasa ransomware into the web. In order to acquire the key and bring back the crucial information, the users are informed to get in touch with the frauds through email or by telegram and to pay the ransom in the quantity of $980.
The message likewise says that the people ought to contact the Jasa authors within 72 hours upon the moment of the information encryption. The alert shows that by doing so individuals will obtain a 50% discount, therefore, the ransom quantity drops down to $490.
Jasa crypted your files, however, it might not be the only hazard on your PC. Plus, the ransomware may be concealed deep in the system. To discover and erase the risk entirely, we advise you to describe the assistance of GridinSoft Anti-Malware app.
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No matter what the quantity of the ransom is, we highly recommend that you do not pay the ransom. There is no assurance that these online criminals will keep their pledges, so they may not care at all what the victims feel about the encryption, even when the amount of the ransom is received into their accounts. For this reason, paying ransom frequently does not result in a successful healing. So, the users may simply lose their money for absolutely nothing.
Similarly, 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 Jasa ransomware or bring back the data for free. For that reason, the only correct choice is to restore the data from possible backups (if available).
Virus Summary
| Name | Jasa Ransomware |
| File Extension | jasa |
| Type | Ransomware |
| Family | DJVU |
| Short Description | The 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. |
| Symptoms | File 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 .jasa extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Jasa Removal Tool | GridinSoft Anti-Malware |
| Jasa Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Internet is now full of infections comparable to the Jasa virus. For example, this particular danger is generally identical to Brusaf and other ransomware-type infections. These damaging utilities have actually been established in order to encrypt the essential data and reveal the need for the users to pay the ransom. All these infections utilize the similar algorithm to create the particular key for successful information decryption.
Unless the Jasa ransomware is still under the development procedure or has got some concealed bugs, it is not possible to restore the information manually. Therefore, the only working solution to avoid the loss of your crucial data is to frequently preserve up-to-date backups of all your crucial files.
Another essential piece of advice is to keep the backups on unique storage not connected to your primary computer. For example, you might 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 Jasa infection.
Leaks for the Jasa ransomware attack.
Jasa uses numerous courses to penetrate the vulnerable computers. It is not particular what particular technique was utilized in your case, nevertheless, the intrusion may occur through the following channels:
- bundling with third-party programs, generally free apps;
- spam emails from the unidentified senders;
- websites offering complimentary hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Jasa virus may camouflage itself as some genuine application, for instance, through the deceptive alerts requiring installation of some software upgrade. This is the most typical trick utilized by the scams to inject the Jasa infection files into the system. By doing this users partly take part in its installation, without plainly understanding the risk.
Furthermore, the scams might send out unsolicited spam email with challenging signals motivating the people to open suspicious attachments or click on some download links, for instance, those encouraging the people to open particular images, text files, tax files and other info.
No doubt, opening these files or clicking on the malicious links might essentially harm the system. Fake Acrobat Reader update notifications may lead to the Jasa ransomware seepage. Similarly, downloading the cracked software application may furthermore consist of the ransomware installer. The last but not the least, installation of Jasa may take place through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission and even approval.
Avoiding the Jasa ransom virus injection.
Obviously, there is no outright assurance that your computer will be constantly free of any malware attacks, nevertheless, we want to share some helpful ideas with you to make it safer. Make certain to pay very attention while searching the web and especially while getting cost-free programs. Do not open any dubious email attachments, particularly if the sender is not understood to you.
Do not forget that particular freeware installer might also consist of some other additional apps in the package. These additional applications might be really harmful. It is of utmost importance to keep your anti-virus software and your operating system in general to be constantly correctly upgraded.
It is quite sensible that downloading pirated programs is illegal, nevertheless, additionally, such unauthorized software application usage may also bring severe damage to your computer. Thus, do not download any split programs. Plus, the reality that your current anti-virus did not secure the system from the Jasa ransomware is a good reason for you to reevaluate your choices and change to another program that can render the safeguarding functions on a much better level.
Below please find the quotation from the Jasa 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 “.jasa” extension added by the ransomware:”
Use GridinSoft Anti-Malware to remove Jasa ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can get GridinSoft Anti-Malware by clicking the button below:
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.
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.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
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.
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.
Use Emsisoft Decryptor for restore jasa files
You can get Emsisoft Decryptor by clicking the button below:
- Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
- Once the license terms are accepted, the primary decryptor user interface opens.
- 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.
- 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.
- 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
- 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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