Stop Virus – Details
Stop is a harmful software application working as common ransomware. Michael Gillespie, the widely known virus researcher, very first found this new name in the DJVU ransomware family.
Stop was created for the sole function to encrypt all popular file types. Rationally, as quickly as the encryption is successfully achieved, the users are unable to get access to them. Stop ransomware includes its own “.stop” to all the encrypted data. For example, the file “price_list.xls”, when crypted by Stop, will be titled as “price_list.xls.stop”. As soon as the file encryption is achieved, Stop puts its own distinct text document (_readme.txt) into all the folders that store the encrypted files.
The message stated by _readme.txt requesting for the random os very comparable to the notices provided by other ransomware dangers belonging to 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 an unique standalone key. Regretfully, this declaration is absolutely real.
The technique to encrypt the files used by Stop is not entirely investigated. However, there is no doubt that each computer system owner may be released a special decryption key, which is definitely special. It is extremely difficult to recuperate the data without the suitable key in place.
“Don’t worry, you can return all your files!”, from text file message:
One more peculiarity of the Stop virus is that the users are unable to get access to the key. The decrypting key is hosted on a special server under the complete control by the criminals who have released the Stop virus into the web. In order to acquire the key and restore the essential information, the users are told to contact the scams via email or by telegram and to pay the ransom in the quantity of $980.
The message also states that individuals need to get in touch with the Stop authors within 72 hours upon the minute of the information encryption. The alert indicates that by doing so the people will get a 50% discount rate, therefore, the ransom quantity drops down to $490.
Stop modified your files, however, it may not be the only risk on your PC. Plus, the ransomware might be hidden deep in the system. To discover and erase the hazard completely, we advise you to describe the aid of GridinSoft Anti-Malware .
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No matter what the amount 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 promises, 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. Hence, paying ransom typically does not lead to a successful healing. So, the users might merely lose their money for nothing.
Similarly, we urge you not to call the scams as they instruct. Do not transfer loan into their wallets. There are no applications that could crack the Stop ransomware or restore the data for free. Therefore, the only correct decision is to bring back the data from possible backups (if available).
Virus Summary
| Name | Stop Ransomware |
| File Extension | stop |
| 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 .stop extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Stop Removal Tool | GridinSoft Anti-Malware |
| Stop Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Internet is now filled with infections similar to the Stop ransomware. For example, this specific danger is essentially similar to Brusaf and other ransomware-type infections. These harmful utilities have been developed in order to encrypt the important data and express the demand for the users to pay the ransom. All these infections utilize the identical algorithm to generate the particular key for successful information decryption.
Unless the Stop ransomware is still under the development procedure or has got some hidden bugs, it is not possible to bring back the data by hand. Thus, the only working option to avoid the loss of your important data is to frequently keep current backups of all your important data.
Another essential piece of suggestions is to save the backups on special storage not linked to your primary PC. For instance, you might 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 extremely risky, since the backup might also be encrypted by the Stop virus.
Leakages for the Stop ransomware attack.
Stop utilizes many paths to infiltrate the susceptible computer systems. It is not specific what specific method was used in your case, however, the invasion may happen through the following channels:
- bundling with third-party programs, primarily free apps;
- spam e-mails from the unidentified senders;
- sites providing complimentary hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Stop may camouflage itself as some genuine application, for instance, through the misleading notifies requiring installation of some software update. This is the most common trick used by the frauds to inject the Stop ransomware files into the system. This way users partly participate in its setup, without plainly understanding the threat.
In addition, the frauds might send out unsolicited spam e-mail with difficult alerts encouraging individuals to open dubious attachments or click on some download links, for instance, those encouraging individuals to open particular pictures, text files, tax documents and other info.
No doubt, opening these files or clicking the destructive links might basically harm the system. Fake Media Player update notices may result in the Stop ransomware seepage. Similarly, downloading the cracked software application might furthermore contain the ransomware installer. The last however not the least, setup of Stop may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct permission or perhaps consent.
Avoiding the Stop ransomware injection.
Obviously, there is no absolute guarantee that your computer system will be constantly free of any malware attacks, however, we wish to share some useful pointers with you to make it safer. Ensure to pay extremely attention while browsing 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 specific freeware installer might also contain some other additional apps in the bundle. These additional applications may be really harmful. It is of utmost importance to keep your anti-virus software application and your operating system in general to be always correctly updated.
It is rather rational that downloading cracked programs is illegal, nevertheless, in addition, such unauthorized apps usage might likewise bring major damage to your PC. For this reason, do not download any broken programs. Plus, the fact that your present anti-virus did not protect the system from the Stop ransomware is an excellent reason for you to reevaluate your choices and switch to another program that can render the safeguarding functions on a far better level.
Below please find the quotation from the Stop 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 “.stop” extension added by the ransomware:”
Use GridinSoft Anti-Malware to remove Stop 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 stop 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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