Sdjm Virus – Details
Sdjm is a harmful software application functioning as typical ransomware. Michael Gillespie, the well-known virus researcher, very first discovered this new name in the DJVU ransomware family.
Sdjm was created for the sole purpose to encrypt all popular file types. Realistically, as quickly as the encryption is successfully accomplished, the users are unable to get access to them. Sdjm virus adds its own “.sdjm” to all the encrypted files. For instance, the file “price_list.xls”, once crypted by Sdjm, will be titled as “price_list.xls.sdjm”. As soon as the file encryption is achieved, Sdjm puts its own distinct text file (_readme.txt) into all the folders that keep the encrypted files.
The message mentioned by text file asking for the random os extremely similar to the alerts provided by other ransomware risks coming from the DJVU family. The warning generally shows that the files have been encrypted and the only service to get access to it is to use a special standalone key. Regretfully, this declaration is absolutely true.
The approach to secure the files used by Sdjm is not entirely researched. Nevertheless, there is no doubt that each computer system owner may be issued a special decryption key, which is absolutely unique. It is very hard to recover 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 Sdjm infection is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the complete control by the scoundrels who have actually released the Sdjm ransomware into the internet. In order to obtain the key and bring back the crucial data, the users are informed to contact the scams through email or by telegram and to pay the ransom in the amount of $980.
The message likewise states that individuals ought to contact the Sdjm authors within 72 hours upon the moment of the data file encryption. The alert indicates that by doing so the people will obtain a 50% discount, for that reason, the ransom quantity falls to $490.
Sdjm modified your information, nevertheless, it might not be the only hazard on your computer. Plus, the ransomware might be hidden deep in the system. To spot and delete the hazard entirely, we recommend you to describe the aid of GridinSoft Anti-Malware .
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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 crooks 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 received into their accounts. For this reason, paying ransom frequently does not lead to a successful healing. So, the users might just lose their money for nothing.
Similarly, we urge you not to call the frauds as they advise. Do not transfer money into their wallets. There are no applications that might crack the Sdjm virus or bring back the information at no cost. For that reason, the only right decision is to bring back the information from possible backups (if readily available).
Virus Summary
| Name | Sdjm Ransomware |
| File Extension | sdjm |
| 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 .sdjm extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Sdjm Removal Tool | GridinSoft Anti-Malware |
| Sdjm Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Internet is now full of infections similar to the Sdjm ransomware. For instance, this specific threat is generally identical to Brusaf and other ransomware-type infections. These harmful energies have been developed in order to encrypt the crucial information and reveal the demand for the users to pay the ransom. All these infections utilize the similar algorithm to produce the specific key for successful information decryption.
Unless the Sdjm ransomware is still under the advancement procedure or has got some concealed bugs, it is not possible to bring back the data manually. Hence, the only working solution to prevent the loss of your essential data is to routinely preserve updated backups of all your vital data.
Another crucial piece of recommendations is to save the backups on special storage not linked to your primary computer. For example, you may store it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your regular drive is extremely risky, since the backup may also be secured by the Sdjm .
Leakages for the Sdjm ransomware attack.
Sdjm utilizes many courses to penetrate the susceptible computers. It is not specific what specific method was utilized in your case, nevertheless, the intrusion might occur by means of the following channels:
- bundling with third-party programs, mainly free software;
- spam e-mails from the unidentified senders;
- sites supplying free hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Sdjm might camouflage itself as some real application, for instance, through the deceptive signals demanding installation of some software application update. This is the most typical trick utilized by the frauds to inject the Sdjm ransomware files into the system. This way users partially take part in its setup, without clearly understanding the danger.
In addition, the scams may send out unsolicited spam e-mail with tricky notifies encouraging individuals to open dubious attachments or click on some download links, for example, those motivating individuals to open particular pictures, text files, tax files and other information.
No doubt, opening these files or clicking on the harmful links may basically harm the system. Fake Media Player update notifications may result in the Sdjm ransomware seepage. Likewise, downloading the split software application may in addition include the ransomware installer. The last but not the least, setup of Sdjm might take place through some Trojan horses that may be installed stealthily into the system and without the user’s direct approval and even authorization.
Avoiding the Sdjm virus attack.
Obviously, there is no absolute guarantee that your computer system will be always without any malware attacks, however, we would like to share some beneficial pointers with you to make it much safer. Make sure to pay very close attention while browsing the web and specifically while getting cost-free programs. Do not open any suspicious email attachments, particularly if the sender is not known to you.
Do not forget that specific freeware installer might likewise include some other extra apps in the bundle. These extra applications may be really damaging. It is of utmost significance to keep your anti-virus software and your os in general to be always properly updated.
It is rather sensible that downloading pirated software is prohibited, however, furthermore, such unauthorized software application use might likewise bring severe damage to your PC. Hence, do not download any cracked programs. Plus, the truth that your existing anti-virus did not safeguard the system from the Sdjm ransomware is an excellent reason for you to reconsider your options and switch to another program that can render the securing functions on a much better level.
Below please find the quotation from the Sdjm 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 “.sdjm” extension added by the ransomware:”
Use GridinSoft Anti-Malware to remove Sdjm ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can download 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 sdjm files
You can download 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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